9dimensions of steel fittings (other than tubulars)

Table 1 Dimensions of Pieces

(Clause 8.1)

All dimensions in millimetres.

Figure description:

• Type: Technical engineering diagram of a pipe assembly.
• Key Components:
  • Taper Pipe: Labeled on the left side at the transition point.
  • Threads: Labeled on the right end of the pipe.
  • Dimension A: Indicates the longitudinal length from the inner shoulder of the left coupling to the right end of the threaded section.
• Features: Half-sectional view showing wall thickness and internal structure.
• Units: All dimensions are in millimetres (mm.

| Sl No.: (1)=i) | Nominal Bore: (2)=6 | Approximate Standard Length, A: (3)=100, (4)=150, (5)=200, (6)=250 | Sl No.: (1)=ii) | Nominal Bore: (2)=8 | Approximate Standard Length, A: (3)=100, (4)=150, (5)=200, (6)=250 | Sl No.: (1)=iii) | Nominal Bore: (2)=10 | Approximate Standard Length, A: (3)=100, (4)=150, (5)=200, (6)=250 | Sl No.: (1)=iv) | Nominal Bore: (2)=15 | Approximate Standard Length, A: (3)=100, (4)=150, (5)=200, (6)=250 | Sl No.: (1)=v) | Nominal Bore: (2)=20 | Approximate Standard Length, A: (3)=100, (4)=150, (5)=200, (6)=250 | Sl No.: (1)=vi) | Nominal Bore: (2)=25 | Approximate Standard Length, A: (3)=100, (4)=150, (5)=200, (6)=250 | Sl No.: (1)=vii) | Nominal Bore: (2)=32 | Approximate Standard Length, A: (3)=150, (4)=200, (5)=250, (6)=300 | Sl No.: (1)=viii) | Nominal Bore: (2)=40 | Approximate Standard Length, A: (3)=150, (4)=200, (5)=250, (6)=300 | Sl No.: (1)=ix) | Nominal Bore: (2)=50 | Approximate Standard Length, A: (3)=150, (4)=200, (5)=250, (6)=300 | Sl No.: (1)=x) | Nominal Bore: (2)=65 | Approximate Standard Length, A: (3)=150, (4)=200, (5)=250, (6)=300 | Sl No.: (1)=xi) | Nominal Bore: (2)=80 | Approximate Standard Length, A: (3)=150, (4)=200, (5)=250, (6)=400 | Sl No.: (1)=xii) | Nominal Bore: (2)=100 | Approximate Standard Length, A: (3)=150, (4)=200, (5)=250, (6)=400 | Sl No.: (1)=xiii) | Nominal Bore: (2)=125 | Approximate Standard Length, A: (3)=250, (4)=300, (5)=400, (6)=500 | Sl No.: (1)=xiv) | Nominal Bore: (2)=150 | Approximate Standard Length, A: (3)=250, (4)=300, (5)=400, (6)=500 IS 1239 (Part 2) : 2011

vi) | Standard Length: Running Nipple, A=33.0, Running Nipple, A=1.5, Close Taper Nipple, B=46.0, Close Taper Nipple, B=1.5, Barrel Nipple, C=60.0, Barrel Nipple, C=4.5, Nominal Bore (2)=25.0 vii) | Standard Length: Running Nipple, A=38.0, Close Taper Nipple, B=51.0, Barrel Nipple, C=70.0, Barrel Nipple, C=6.0, Nominal Bore (2)=32.0 viii) | Standard Length: Running Nipple, A=38.0, Close Taper Nipple, B=51.0, Barrel Nipple, C=70.0, Barrel Nipple, C=6.0, Nominal Bore (2)=40.0 ix) | Standard Length: Running Nipple, A=48.0, Close Taper Nipple, B=60.0, Barrel Nipple, C=79.0, Barrel Nipple, C=6.0, Nominal Bore (2)=50.0 x) | Standard Length: Running Nipple, A=51.0, Running Nipple, A=3.0, Close Taper Nipple, B=69.0, Close Taper Nipple, B=3.0, Barrel Nipple, C=89.0, Barrel Nipple, C=8.0, Nominal Bore (2)=65.0 xi) | Standard Length: Running Nipple, A=57.0, Running Nipple, A=3.0, Close Taper Nipple, B=75.0, Close Taper Nipple, B=3.0, Barrel Nipple, C=102.0, Barrel Nipple, C=8.0, Nominal Bore (2)=80.0 nan | Standard Length: Running Nipple, A=70.0, Running Nipple, A=3.0, Close Taper Nipple, B=87.0, Close Taper Nipple, B=3.0, Barrel Nipple, C=114.0, Barrel Nipple, C=8.0, Nominal Bore (2)=100.0 xii) | Standard Length: Running Nipple, A=78.0, Close Taper Nipple, B=96.0, Barrel Nipple, C=124.0, Nominal Bore (2)=125.0 xiv) | Standard Length: Running Nipple, A=78.0, Close Taper Nipple, B=96.0, Barrel Nipple, C=127.0, Nominal Bore (2)=150.0

Table 2 Dimensions of Running Nipples; Close Taper Nipples and Barrel Nipples (Clause 8.2)

All dimensions in millimetres.

Figure description:

The image illustrates three types of pipe nipples with dimensions in millimetres:

• Running Nipple (Parallel Threads: Features parallel threads across its entire length, designated as dimension A.
• Close Taper Nipple (Taper Threads Both Ends: Consists of two tapered threaded sections meeting in the middle. Total length is dimension B, with each tapered section being B/2.
• Barrel Nipple (Taper Threads Both Ends: Features tapered threads at both ends separated by a straight center section. The total length is designated as dimension C.

i) | Standard Length: Running Nipple, A=13.0, Close Taper Nipple, B=19.0, Barrel Nipple, C=32.0, Barrel Nipple, C=3.0, Nominal Bore (2)=6.0 ii) | Standard Length: Running Nipple, A=19.0, Close Taper Nipple, B=27.0, Barrel Nipple, C=38.0, Barrel Nipple, C=3.0, Nominal Bore (2)=8.0 iii) | Standard Length: Running Nipple, A=21.0, Close Taper Nipple, B=28.0, Barrel Nipple, C=38.0, Barrel Nipple, C=3.0, Nominal Bore (2)=10.0 iv) | Standard Length: Running Nipple, A=27.0, Running Nipple, A=1.5, Close Taper Nipple, B=37.0, Close Taper Nipple, B=1.5, Barrel Nipple, C=51.0, Barrel Nipple, C=4.5, Nominal Bore (2)=15.0 v) | Standard Length: Running Nipple, A=30.0, Running Nipple, A=1.5, Close Taper Nipple, B=39.0, Close Taper Nipple, B=1.5, Barrel Nipple, C=54.0, Barrel Nipple, C=4.5, Nominal Bore (2)=20.0

iv) | Approximate Standard Length, C: Unnamed: 5_level_1=1001), Unnamed: 6_level_1=150, Unnamed: 7_level_1=200, Unnamed: 8_level_1=250, Nominal Bore=15, Minimum Effective Length of Long Thread, B=52 v) | Faced Socket, A: Length, Min=37, Tolerance=3.0, Nominal Bore=20, Minimum Effective Length of Long Thread, B=54 v) | Approximate Standard Length, C: Unnamed: 5_level_1=1001), Unnamed: 6_level_1=150, Unnamed: 7_level_1=200, Unnamed: 8_level_1=250, Nominal Bore=20, Minimum Effective Length of Long Thread, B=54 vi) | Faced Socket, A: Length, Min=43, Tolerance=3.0, Nominal Bore=25, Minimum Effective Length of Long Thread, B=62 vi) | Approximate Standard Length, C: Unnamed: 5_level_1=1001), Unnamed: 6_level_1=150, Unnamed: 7_level_1=200, Unnamed: 8_level_1=250, Nominal Bore=25, Minimum Effective Length of Long Thread, B=62 vii) | Faced Socket, A: Length, Min=48, Tolerance=4.5, Nominal Bore=32, Minimum Effective Length of Long Thread, B=70 vii) | Approximate Standard Length, C: Unnamed: 5_level_1=1501), Unnamed: 6_level_1=200, Unnamed: 7_level_1=250, Unnamed: 8_level_1=300, Nominal Bore=32, Minimum Effective Length of Long Thread, B=70 viii) | Faced Socket, A: Length, Min=48, Tolerance=4.5, Nominal Bore=40, Minimum Effective Length of Long Thread, B=71 viii) | Approximate Standard Length, C: Unnamed: 5_level_1=1501), Unnamed: 6_level_1=200, Unnamed: 7_level_1=250, Unnamed: 8_level_1=300, Nominal Bore=40, Minimum Effective Length of Long Thread, B=71 ix) | Faced Socket, A: Length, Min=57, Tolerance=4.5, Nominal Bore=50, Minimum Effective Length of Long Thread, B=82 ix) | Approximate Standard Length, C: Unnamed: 5_level_1=1501), Unnamed: 6_level_1=2001), Unnamed: 7_level_1=250, Unnamed: 8_level_1=300, Nominal Bore=50, Minimum Effective Length of Long Thread, B=82 x) | Faced Socket, A: Length, Min=65, Tolerance=6.0, Nominal Bore=65, Minimum Effective Length of Long Thread, B=97

x) | Approximate Standard Length, C: Unnamed: 5_level_1=1501), Unnamed: 6_level_1=2001), Unnamed: 7_level_1=2501), Unnamed: 8_level_1=300, Nominal Bore=65, Minimum Effective Length of Long Thread, B=97 xi) | Faced Socket, A: Length, Min=71, Tolerance=6.0, Nominal Bore=80, Minimum Effective Length of Long Thread, B=106 xi) | Approximate Standard Length, C: Unnamed: 5_level_1=2001), Unnamed: 6_level_1=2001), Unnamed: 7_level_1=300, Unnamed: 8_level_1=400, Nominal Bore=80, Minimum Effective Length of Long Thread, B=106 xii) | Faced Socket, A: Length, Min=84, Tolerance=6.0, Nominal Bore=100, Minimum Effective Length of Long Thread, B=121 xii) | Approximate Standard Length, C: Unnamed: 5_level_1=2001), Unnamed: 6_level_1=2501), Unnamed: 7_level_1=300, Unnamed: 8_level_1=400, Nominal Bore=100, Minimum Effective Length of Long Thread, B=121 xiii) | Faced Socket, A: Length, Min=92, Tolerance=6.0, Nominal Bore=125, Minimum Effective Length of Long Thread, B=130 xiii) | Approximate Standard Length, C: Unnamed: 5_level_1=2501), Unnamed: 6_level_1=3001), Unnamed: 7_level_1=400, Unnamed: 8_level_1=500, Nominal Bore=125, Minimum Effective Length of Long Thread, B=130 xiv) | Faced Socket, A: Length, Min=92, Tolerance=6.0, Nominal Bore=150, Minimum Effective Length of Long Thread, B=132 xiv) | Approximate Standard Length, C: Unnamed: 5_level_1=2501), Unnamed: 6_level_1=3001), Unnamed: 7_level_1=400, Unnamed: 8_level_1=500, Nominal Bore=150, Minimum Effective Length of Long Thread, B=132 NOTE — For particulars of back nuts, see IS 3468.

1. Double longscrew are not supplied in these lengths.

IS 1239 (Part 2) : 2011

Table 3 Dimensions of Longscrews

(Clauses 8.3.1 and 8.6)

All dimensions in millimetres.

Figure description:

Technical Drawing Details:

• Subject: Mechanical pipe fittings/connectors shown in two configurations.
• Key Features:
  • Thread Types: Parallel pipe threads and taper pipe threads are specified.
  • Dimensional Variables:
    • A: Length of end caps/collars.
    • B: Length of parallel threaded sections.
    • C: Total span/length of the main body.
  • Angles: 15° slant indicated on the locking nuts/rings.
• Units: All dimensions are in millimetres (mm)).

i) | Faced Socket, A: Length, Min=17, Tolerance=1.5, Nominal Bore=6, Minimum Effective Length of Long Thread, B=29 i) | Approximate Standard Length, C: Unnamed: 5_level_1=100, Unnamed: 6_level_1=150, Unnamed: 7_level_1=200, Unnamed: 8_level_1=250, Nominal Bore=6, Minimum Effective Length of Long Thread, B=29 ii) | Faced Socket, A: Length, Min=25, Tolerance=1.5, Nominal Bore=8, Minimum Effective Length of Long Thread, B=37 ii) | Approximate Standard Length, C: Unnamed: 5_level_1=100, Unnamed: 6_level_1=150, Unnamed: 7_level_1=200, Unnamed: 8_level_1=250, Nominal Bore=8, Minimum Effective Length of Long Thread, B=37 iii) | Faced Socket, A: Length, Min=25, Tolerance=1.5, Nominal Bore=10, Minimum Effective Length of Long Thread, B=40 iii) | Approximate Standard Length, C: Unnamed: 5_level_1=1001), Unnamed: 6_level_1=150, Unnamed: 7_level_1=200, Unnamed: 8_level_1=250, Nominal Bore=10, Minimum Effective Length of Long Thread, B=40 iv) | Faced Socket, A: Length, Min=35, Tolerance=3.0, Nominal Bore=15, Minimum Effective Length of Long Thread, B=52

vii) | Approximate Centre to Face for Springs: 112.5°=133, 135°=127, 157.5°=124, Nominal Bore (2)=32, Bends 90° Approximate Centre of Face=197, Approximate Radius=108 viii) | Approximate Centre to Face for Springs: 112.5°=149, 135°=143, 157.5°=140, Nominal Bore (2)=40, Bends 90° Approximate Centre of Face=219, Approximate Radius=127 ix) | Approximate Centre to Face for Springs: 112.5°=181, 135°=175, 157.5°=168, Nominal Bore (2)=50, Bends 90° Approximate Centre of Face=264, Approximate Radius=159 x) | Approximate Centre to Face for Springs: 112.5°=222, 135°=213, 157.5°=206, Nominal Bore (2)=65, Bends 90° Approximate Centre of Face=321, Approximate Radius=197 xi) | Approximate Centre to Face for Springs: 112.5°=260, 135°=248, 157.5°=241, Nominal Bore (2)=80, Bends 90° Approximate Centre of Face=371, Approximate Radius=232 xii) | Approximate Centre to Face for Springs: 112.5°=340, 135°=324, 157.5°=318, Nominal Bore (2)=100, Bends 90° Approximate Centre of Face=467, Approximate Radius=308 xiii) | Approximate Centre to Face for Springs: 112.5°=476, 135°=457, 157.5°=444, Nominal Bore (2)=125, Bends 90° Approximate Centre of Face=632, Approximate Radius=460 xiv) | Approximate Centre to Face for Springs: 112.5°=572, 135°=540, 157.5°=527, Nominal Bore (2)=150, Bends 90° Approximate Centre of Face=718, Approximate Radius=540

Table 4 Dimensions of Bends and Springs

(Clauses 8.4.1 and 8.4.2)

All dimensions in millimetres.

Figure description:

The image displays technical diagrams for five types of pipe bends, all dimensions in millimeters:

• Type 1: 90° bend with equal leg lengths (A and radius (R.
• Type 1A: 90° bend with unequal leg lengths (A and B. Features parallel pipe threads and a locking nut; length C is specified as for long screws.
• Type 2: 112.5° bend with equal leg lengths (C and radius (R.
• Type 3: 135° bend with equal leg lengths (D and radius (R.
• Type 4: 157.5° bend with equal leg lengths (E and radius (R.

i) | Approximate Centre to Face for Springs: 112.5°=48, 135°=44, 157.5°=44, Nominal Bore (2)=6, Bends 90° Approximate Centre of Face=73, Approximate Radius=32 ii) | Approximate Centre to Face for Springs: 112.5°=60, 135°=57, 157.5°=54, Nominal Bore (2)=8, Bends 90° Approximate Centre of Face=92, Approximate Radius=41 iii) | Approximate Centre to Face for Springs: 112.5°=67, 135°=64, 157.5°=60, Nominal Bore (2)=10, Bends 90° Approximate Centre of Face=105, Approximate Radius=48 iv) | Approximate Centre to Face for Springs: 112.5°=79, 135°=76, 157.5°=73, Nominal Bore (2)=15, Bends 90° Approximate Centre of Face=127, Approximate Radius=57 v) | Approximate Centre to Face for Springs: 112.5°=92, 135°=89, 157.5°=86, Nominal Bore (2)=20, Bends 90° Approximate Centre of Face=143, Approximate Radius=73 vi) | Approximate Centre to Face for Springs: 112.5°=108, 135°=105, 157.5°=102, Nominal Bore (2)=25, Bends 90° Approximate Centre of Face=168, Approximate Radius=89

Table 5 Dimensions of Return Bends Table 6 Dimensions of Steel Sockets

(Clause 8.5)

(Clauses 6.3.1 and 8.6)

All dimensions in millimetres.

Figure description:

• Subject: Technical drawing of a U-shaped pipe fitting (likely a siphon.
• Dimension A: Horizontal center-to-center distance between the two vertical pipe segments.
• Dimension B: Vertical height from the top of the curve to the base of the left-hand threaded connection.
• Key Features:
  • Taper Pipe Threads: Located at both ends of the curved pipe section.
  • Fitting: The left end is shown coupled with a larger cylindrical fitting or socket.
• Units: All dimensions are in millimetres (mm.

Figure description:

Technical diagram of a cylindrical object with dimensional annotations:

• $\phi A$: Denotes the total diameter.
• B: Denotes the total length or width.
• Cross-hatching: Indicates a sectional area or specific material layer at the top.
• Centerline: Horizontal dash-dot line indicating the axis of symmetry.
• Corners: Features rounded edges or fillets.

| SI No.: A=i) | Nominal Bore: A=6 | Approximate Centres: A=44 | Approximate Back to Face: B=51 | SI No.: A=ii) | Nominal Bore: A=8 | Approximate Centres: A=51 | Approximate Back to Face: B=64 | SI No.: A=iii) | Nominal Bore: A=10 | Approximate Centres: A=64 | Approximate Back to Face: B=70 | SI No.: A=iv) | Nominal Bore: A=15 | Approximate Centres: A=89 | Approximate Back to Face: B=102 | SI No.: A=v) | Nominal Bore: A=20 | Approximate Centres: A=102 | Approximate Back to Face: B=121 | SI No.: A=vi) | Nominal Bore: A=25 | Approximate Centres: A=114 | Approximate Back to Face: B=140 | SI No.: A=vii) | Nominal Bore: A=32 | Approximate Centres: A=127 | Approximate Back to Face: B=152 | SI No.: A=viii) | Nominal Bore: A=40 | Approximate Centres: A=165 | Approximate Back to Face: B=178 | SI No.: A=ix) | Nominal Bore: A=50 | Approximate Centres: A=190 | Approximate Back to Face: B=210 | SI No.: A=x) | Nominal Bore: A=65 | Approximate Centres: A=305 | Approximate Back to Face: B=292 | SI No.: A=xi) | Nominal Bore: A=80 | Approximate Centres: A=356 | Approximate Back to Face: B=330 | SI No.: A=xii) | Nominal Bore: A=100 | Approximate Centres: A=457 | Approximate Back to Face: B=400 | SI No.: A=xiii) | Nominal Bore: A=125 | Approximate Centres: A=762 | Approximate Back to Face: B=578 | SI No.: A=xiv) | Nominal Bore: A=150 | Approximate Centres: A=914 | Approximate Back to Face: B=692

NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge.: Nominal Bore (2)=NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge., Minimum Outside Diameter A (3)=NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge., Minimum Length B (4)=NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge., Maximum Inside Diameter of Internal Parallel Thread (5)=NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge.

| Maximum Inside Diameter of Body Behind Internal Thread: d (5)=24.1 | Sl No.: (1)=vi) | Nominal Size of Outlet: (2)=25 | Minimum Outside Diameter: D (3)=39.5 | Minimum Outside Diameter of Body Behind External Thread: E (4)=33.4 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=30.3 | Sl No.: (1)=vii) | Nominal Size of Outlet: (2)=32 | Minimum Outside Diameter: D (3)=49 | Minimum Outside Diameter of Body Behind External Thread: E (4)=42.1 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=39.0 | Sl No.: (1)=viii) | Nominal Size of Outlet: (2)=40 | Minimum Outside Diameter: D (3)=56 | Minimum Outside Diameter of Body Behind External Thread: E (4)=48.0 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=44.8 | Sl No.: (1)=ix) | Nominal Size of Outlet: (2)=50 | Minimum Outside Diameter: D (3)=68 | Minimum Outside Diameter of Body Behind External Thread: E (4)=59.8 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=56.7 | Sl No.: (1)=x) | Nominal Size of Outlet: (2)=65 | Minimum Outside Diameter: D (3)=84 | Minimum Outside Diameter of Body Behind External Thread: E (4)=75.4 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=72.2 | Sl No.: (1)=xi)

| Nominal Size of Outlet: (2)=80 | Minimum Outside Diameter: D (3)=98 | Minimum Outside Diameter of Body Behind External Thread: E (4)=88.1 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=84.9 | Sl No.: (1)=xii) | Nominal Size of Outlet: (2)=100 | Minimum Outside Diameter: D (3)=124 | Minimum Outside Diameter of Body Behind External Thread: E (4)=113.3 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=110.1 | Sl No.: (1)=xiii) | Nominal Size of Outlet: (2)=125 | Minimum Outside Diameter: D (3)=151 | Minimum Outside Diameter of Body Behind External Thread: E (4)=138.7 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=135.5 | Sl No.: (1)=xiv) | Nominal Size of Outlet: (2)=150 | Minimum Outside Diameter: D (3)=178 | Minimum Outside Diameter of Body Behind External Thread: E (4)=164.1 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=160.9 | Sl No.: (1)=NOTE — For particular of threads, see IS 554. | Nominal Size of Outlet: (2)=NOTE — For particular of threads, see IS 554. | Minimum Outside Diameter: D (3)=NOTE — For particular of threads, see IS 554. | Minimum Outside Diameter of Body Behind External Thread: E (4)=NOTE — For particular of threads, see IS 554. | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=NOTE — For particular of threads, see IS 554.

Table 7 Dimensions of Screwed Ends of Fittings

(Clause 9.1)

All dimensions in millimetres.

Figure description:

• Type: Technical cross-section diagram.
• Key Dimensions:
  • D: Outer diameter or larger vertical dimension.
  • d: Inner diameter or smaller vertical dimension.
• Units: Millimetres (mm.
• Features:
  • Hatched region indicating solid material.
  • Wavy lines on the left and bottom indicating a partial or truncated view.
  • A vertical line suggesting an internal step or component interface.

Figure description:

• Subject: Internal parallel threads technical diagram.
• Key Specification: Taper 1 in 16 on diameter.
• Dimension Label: "E" indicates a specific diameter measurement.
• Visual Details: Cross-hatched section representing the material wall; dashed line indicating an internal boundary or axis.

INTERNAL PARALLEL THREADS

EXTERNAL TAPER THREADS | Sl No.: (1)=i) | Nominal Size of Outlet: (2)=6 | Minimum Outside Diameter: D (3)=15 | Minimum Outside Diameter of Body Behind External Thread: E (4)=9.8 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=8.6 | Sl No.: (1)=ii) | Nominal Size of Outlet: (2)=8 | Minimum Outside Diameter: D (3)=18.5 | Minimum Outside Diameter of Body Behind External Thread: E (4)=13.3 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=11.4 | Sl No.: (1)=iii) | Nominal Size of Outlet: (2)=10 | Minimum Outside Diameter: D (3)=22 | Minimum Outside Diameter of Body Behind External Thread: E (4)=16.8 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=15.0 | Sl No.: (1)=iv) | Nominal Size of Outlet: (2)=15 | Minimum Outside Diameter: D (3)=27 | Minimum Outside Diameter of Body Behind External Thread: E (4)=21.1 | Maximum Inside Diameter of Body Behind Internal Thread: d (5)=18.6 | Sl No.: (1)=v) | Nominal Size of Outlet: (2)=20 | Minimum Outside Diameter: D (3)=32.5 | Minimum Outside Diameter of Body Behind External Thread: E (4)=26.6

Table 8 Dimensions of Elbows, Tees and Crosses, Equal

(Clause 9.1)

All dimensions in millimetres.

Figure description:

Technical Diagrams of Pipe Fittings

• Units: All dimensions are in millimetres (mm.
• Key Entities:
  • Elbow Equal: A 90-degree fitting with a center-to-face dimension of A for both openings.
  • Tee Equal: A T-shaped fitting with a center-to-face dimension of A for all three openings.
  • Cross Equal: A cross-shaped fitting with a center-to-face dimension of A for all four openings.
• Dimensioning: The parameter A represents the equal distance from the centerlines to the face of each opening across all three types.

9

xiii) | Minimum Length, Centre to Face: A=41, B=51, Nominal Size of Outlet=32 × 20 xiv) | Minimum Length, Centre to Face: A=44, B=51, Nominal Size of Outlet=32 × 25 xv) | Minimum Length, Centre to Face: A=38, B=52, Nominal Size of Outlet=40 × 15 xvi) | Minimum Length, Centre to Face: A=41, B=52, Nominal Size of Outlet=40 × 20 xvii) | Minimum Length, Centre to Face: A=44, B=52, Nominal Size of Outlet=40 × 25 xviii) | Minimum Length, Centre to Face: A=48, B=52, Nominal Size of Outlet=40 × 32 xix) | Minimum Length, Centre to Face: A=41, B=64, Nominal Size of Outlet=50 × 15 xx) | Minimum Length, Centre to Face: A=44, B=64, Nominal Size of Outlet=50 × 20 xxi) | Minimum Length, Centre to Face: A=48, B=64, Nominal Size of Outlet=50 × 25 xxii) | Minimum Length, Centre to Face: A=52, B=64, Nominal Size of Outlet=50 × 32 xxiii) | Minimum Length, Centre to Face: A=56, B=64, Nominal Size of Outlet=50 × 40 xxiv) | Minimum Length, Centre to Face: A=60, B=76, Nominal Size of Outlet=65 × 40 xxv) | Minimum Length, Centre to Face: A=67, B=76, Nominal Size of Outlet=65 × 50 xxvi) | Minimum Length, Centre to Face: A=60, B=89, Nominal Size of Outlet=80 × 25 xxvii) | Minimum Length, Centre to Face: A=73, B=89, Nominal Size of Outlet=80 × 50 xxviii) | Minimum Length, Centre to Face: A=83, B=115, Nominal Size of Outlet=100 × 50 xxix) | Minimum Length, Centre to Face: A=95, B=115, Nominal Size of Outlet=100 × 80

Table 9 Dimensions of Elbows Reducing

(Clause 9.1)

All dimensions in millimetres.

Figure description:

Technical drawing of an L-shaped pipe fitting:

• Part Type: Elbow or L-bend fitting.
• Dimensions:
  • A: Horizontal distance from the vertical centerline to the right face.
  • B: Vertical distance from the horizontal centerline to the top face.
• Reference Points:
  • 1: Horizontal centerline indicator.
  • 2: Vertical centerline indicator.
• Units: All dimensions are in millimetres (mm.

i) | Minimum Length, Centre to Face: A=21, B=22, Nominal Size of Outlet=8 × 6 ii) | Minimum Length, Centre to Face: A=21, B=24, Nominal Size of Outlet=10 × 6 iii) | Minimum Length, Centre to Face: A=22, B=24, Nominal Size of Outlet=10 × 8 iv) | Minimum Length, Centre to Face: A=25, B=32, Nominal Size of Outlet=15 × 8 v) | Minimum Length, Centre to Face: A=27, B=32, Nominal Size of Outlet=15 × 10 vi) | Minimum Length, Centre to Face: A=27, B=35, Nominal Size of Outlet=20 × 8 vii) | Minimum Length, Centre to Face: A=29, B=35, Nominal Size of Outlet=20 × 10 viii) | Minimum Length, Centre to Face: A=32, B=35, Nominal Size of Outlet=20 × 15 ix) | Minimum Length, Centre to Face: A=32, B=43, Nominal Size of Outlet=25 × 10 x) | Minimum Length, Centre to Face: A=35, B=43, Nominal Size of Outlet=25 × 15 xi) | Minimum Length, Centre to Face: A=38, B=43, Nominal Size of Outlet=25 × 20 xii) | Minimum Length, Centre to Face: A=38, B=51, Nominal Size of Outlet=32 × 15

| Minimum Length, Centre to Face: A (3)=25, A (3).1=56.0, B (4).1=64.0 | SI No.: (1)=v), (1).1=xxvii) | Nominal Size of Outlet: (1) × (2) (2)=15 × 10, (1) × (2) (2).1=65 × 25 | Minimum Length, Centre to Face: A (3)=27, B (4)=32, A (3).1=54.0, B (4).1=76.0 | SI No.: (1)=vi), (1).1=xxviii) | Nominal Size of Outlet: (1) × (2) (2)=20 × 8, (1) × (2) (2).1=65 × 32 | Minimum Length, Centre to Face: A (3)=27, B (4)=35, A (3).1=57.0, B (4).1=76.0 | SI No.: (1)=vii), (1).1=xxix) | Nominal Size of Outlet: (1) × (2) (2)=20 × 10, (1) × (2) (2).1=65 × 40 | Minimum Length, Centre to Face: A (3)=29, B (4)=35, A (3).1=60.0, B (4).1=76.0 | SI No.: (1)=viii), (1).1=xxx) | Nominal Size of Outlet: (1) × (2) (2)=20 × 15, (1) × (2) (2).1=65 × 50 | Minimum Length, Centre to Face: A (3)=32, B (4)=35, A (3).1=67.0, B (4).1=76.0 | SI No.: (1)=ix), (1).1=xxxi) | Nominal Size of Outlet: (1) × (2) (2)=25 × 10, (1) × (2) (2).1=80 × 25 | Minimum Length, Centre to Face: A (3)=30, A (3).1=60.0, B (4).1=89.0 | SI No.: (1)=x), (1).1=xxxii) | Nominal Size of Outlet: (1) × (2) (2)=25 × 8, (1) × (2) (2).1=80 × 32 | Minimum Length, Centre to Face: A (3)=32, B (4)=43 43, A (3).1=64.0, B (4).1=89.0 | SI No.: (1)=xi), (1).1=xxxiii) | Nominal Size of Outlet: (1) × (2) (2)=25 × 15, (1) × (2) (2).1=80 × 40 | Minimum Length, Centre to Face: A (3)=35, B (4)=43, A (3).1=67.0, B (4).1=89.0 | SI No.: (1)=xii), (1).1=xxxiv) | Nominal Size of Outlet: (1) × (2) (2)=25 × 20, (1) × (2) (2).1=80 × 50

| Minimum Length, Centre to Face: A (3)=38, B (4)=43, A (3).1=73.0, B (4).1=89.0 | SI No.: (1)=xiii), (1).1=xxxv) | Nominal Size of Outlet: (1) × (2) (2)=32 × 10, (1) × (2) (2).1=80 × 65 | Minimum Length, Centre to Face: A (3)=35, B (4)=51, A (3).1=79.0, B (4).1=89.0 | SI No.: (1)=xiv), (1).1=xxxvi) | Nominal Size of Outlet: (1) × (2) (2)=32 × 15, (1) × (2) (2).1=100 × 25 | Minimum Length, Centre to Face: A (3)=38, B (4)=51, A (3).1=70.0, B (4).1=115.0 | SI No.: (1)=xv), (1).1=xxxvii) | Nominal Size of Outlet: (1) × (2) (2)=32 × 20, (1) × (2) (2).1=100 × 40 | Minimum Length, Centre to Face: A (3)=41, B (4)=51, A (3).1=76.0, B (4).1=115.0 | SI No.: (1)=xvi), (1).1=xxxviii) | Nominal Size of Outlet: (1) × (2) (2)=32 × 25, (1) × (2) (2).1=100 × 50 | Minimum Length, Centre to Face: A (3)=44, B (4)=51, A (3).1=83.0, B (4).1=115.0 | SI No.: (1)=xvii), (1).1=xxxix) | Nominal Size of Outlet: (1) × (2) (2)=40 × 10, (1) × (2) (2).1=100 × 80 | Minimum Length, Centre to Face: A (3)=37, B (4)=52, A (3).1=95.0, B (4).1=115.0 | SI No.: (1)=xviii), (1).1=xxxx) | Nominal Size of Outlet: (1) × (2) (2)=40 × 15, (1) × (2) (2).1=125 × 80 | Minimum Length, Centre to Face: A (3)=38, B (4)=52, A (3).1=115.0, B (4).1=140.0 | SI No.: (1)=xix), (1).1=xxxxi) | Nominal Size of Outlet: (1) × (2) (2)=40 × 20, (1) × (2) (2).1=125 × 100 | Minimum Length, Centre to Face: A (3)=41, B (4)=52, A (3).1=130.0, B (4).1=140.0 | SI No.: (1)=xx), (1).1=xxxxii) | Nominal Size of Outlet: (1) × (2) (2)=40 × 25, (1) × (2) (2).1=150 × 80

| Minimum Length, Centre to Face: A (3)=48, B (4)=52, A (3).1=120.0, B (4).1=160.0 | SI No.: (1)=xxi), (1).1=xxxxiii) | Nominal Size of Outlet: (1) × (2) (2)=40 × 32, (1) × (2) (2).1=150 × 100 | Minimum Length, Centre to Face: A (3)=49, B (4)=52, A (3).1=135.0, B (4).1=160.0 | SI No.: (1)=xxii) | Nominal Size of Outlet: (1) × (2) (2)=50 × 15 | Minimum Length, Centre to Face: A (3)=41, B (4)=64 Table 11 Dimensions of Tees, Reducing (on the Run and Branch, or on the Run Only) (Clause 9.1)

All dimensions in millimetres.

Figure description:

This image is a technical drawing of a pipe fitting, specifically a "Tee, Reducing on the Run and Branch". It illustrates the key center-to-face dimensions.

Tee, Reducing on the Run and Branch

Tee, Reducing on the Run Only

| SI No.: (1)=i) | Nominal Size of Outlet: (1) × (2) × (3) (2)=20 × 15 × 15 | Minimum Length, Centre to Face: A (3)=32, B (4)=35 | SI No.: (1)=ii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=20 × 15 × 20 | Minimum Length, Centre to Face: A (3)=35, B (4)=35 | SI No.: (1)=iii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=25 × 20 × 15 | Minimum Length, Centre to Face: A (3)=35, B (4)=43 | SI No.: (1)=iv) | Nominal Size of Outlet: (1) × (2) × (3) (2)=25 × 20 × 20 | Minimum Length, Centre to Face: A (3)=38, B (4)=43 | SI No.: (1)=v) | Nominal Size of Outlet: (1) × (2) × (3) (2)=25 × 20 × 25 | Minimum Length, Centre to Face: A (3)=43, B (4)=43 | SI No.: (1)=vi) | Nominal Size of Outlet: (1) × (2) × (3) (2)=32 × 25 × 20 | Minimum Length, Centre to Face: A (3)=41, B (4)=51 | SI No.: (1)=vii)

| Nominal Size of Outlet: (1) × (2) × (3) (2)=32 × 25 × 25 | Minimum Length, Centre to Face: A (3)=44, B (4)=51 | SI No.: (1)=viii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=32 × 25 × 32 | Minimum Length, Centre to Face: A (3)=51, B (4)=51 | SI No.: (1)=ix) | Nominal Size of Outlet: (1) × (2) × (3) (2)=32 × 25 × 40 | Minimum Length, Centre to Face: A (3)=52, B (4)=52 | SI No.: (1)=x) | Nominal Size of Outlet: (1) × (2) × (3) (2)=40 × 32 × 25 | Minimum Length, Centre to Face: A (3)=44, B (4)=52 | SI No.: (1)=xi) | Nominal Size of Outlet: (1) × (2) × (3) (2)=40 × 32 × 32 | Minimum Length, Centre to Face: A (3)=49, B (4)=52 | SI No.: (1)=xii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=40 × 32 × 40 | Minimum Length, Centre to Face: A (3)=52, B (4)=52 | SI No.: (1)=xiii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=40 × 32 × 50

| Minimum Length, Centre to Face: A (3)=64, B (4)=64 | SI No.: (1)=xiv) | Nominal Size of Outlet: (1) × (2) × (3) (2)=50 × 32 × 50 | Minimum Length, Centre to Face: A (3)=64, B (4)=64 | SI No.: (1)=xv) | Nominal Size of Outlet: (1) × (2) × (3) (2)=50 × 40 × 25 | Minimum Length, Centre to Face: A (3)=48, B (4)=64 | SI No.: (1)=xvi) | Nominal Size of Outlet: (1) × (2) × (3) (2)=50 × 40 × 40 | Minimum Length, Centre to Face: A (3)=56, B (4)=64 | SI No.: (1)=xvii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=50 × 40 × 50 | Minimum Length, Centre to Face: A (3)=64, B (4)=64 | SI No.: (1)=xviii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=50 × 50 × 50 | Minimum Length, Centre to Face: A (3)=67, B (4)=76 | SI No.: (1)=xix) | Nominal Size of Outlet: (1) × (2) × (3) (2)=50 × 50 × 65 | Minimum Length, Centre to Face: A (3)=76, B (4)=76 | SI No.: (1)=xx) | Nominal Size of Outlet: (1) × (2) × (3) (2)=80 × 50 × 50 | Minimum Length, Centre to Face: A (3)=73, B (4)=89 | SI No.: (1)=xxi) | Nominal Size of Outlet: (1) × (2) × (3) (2)=80 × 50 × 80 | Minimum Length, Centre to Face: A (3)=89, B (4)=89 | SI No.: (1)=xxii) | Nominal Size of Outlet: (1) × (2) × (3) (2)=100 × 80 × 80 | Minimum Length, Centre to Face: A (3)=95, B (4)=115

Table 10 Dimensions of Tees, Reducing (on the Branch)

(Clause 9.1)

All dimensions in millimetres.

Figure description:

• Entity: Reducing Tee (on the branch
• Port Labels:
  • (1: Main run openings
  • (2: Branch opening
• Dimensions (in millimetres:
  • A: Center-to-face distance for the run ports
  • B: Center-to-face distance for the branch port

Tee, Reducing (on the branch) | SI No.: (1)=i), (1).1=xxiii) | Nominal Size of Outlet: (1) × (2) (2)=8 × 6, (1) × (2) (2).1=50 × 20 | Minimum Length, Centre to Face: A (3)=21, B (4)=22, A (3).1=44.0, B (4).1=64.0 | SI No.: (1)=ii), (1).1=xxiv) | Nominal Size of Outlet: (1) × (2) (2)=10 × 6, (1) × (2) (2).1=50 × 25 | Minimum Length, Centre to Face: A (3)=21, B (4)=24, A (3).1=48.0, B (4).1=64.0 | SI No.: (1)=iii), (1).1=xxv) | Nominal Size of Outlet: (1) × (2) (2)=10 × 8, (1) × (2) (2).1=50 × 32 | Minimum Length, Centre to Face: A (3)=22, B (4)=24, A (3).1=52.0, B (4).1=64.0 | SI No.: (1)=iv), (1).1=xxvi) | Nominal Size of Outlet: (1) × (2) (2)=15 × 8, (1) × (2) (2).1=50 × 40

| Minimum: Length, Centre=76, Length, Centre=67 | SI: No.=xii) | Nominal: Size of=50 x 80 | Minimum: Length, Centre=89, Length, Centre=73 | SI: No.=xiii) | Nominal: Size of=65 x 80 | Minimum: Length, Centre=89, Length, Centre=79 | SI: No.=xiv) | Nominal: Size of=80 x 100 | Minimum: Length, Centre=115, Length, Centre=95

| SI: No.=i) | Nominal: Size of=8 x 6 | Minimum: Length, Centre=21, Length, Centre=22 | SI: No.=ii) | Nominal: Size of=10 x 8 | Minimum: Length, Centre=22, Length, Centre=24 | SI: No.=iii) | Nominal: Size of=15 x 10 | Minimum: Length, Centre=27, Length, Centre=32 | SI: No.=iv) | Nominal: Size of=20 x 15 | Minimum: Length, Centre=32, Length, Centre=35 | SI: No.=v) | Nominal: Size of=25 x 15 | Minimum: Length, Centre=35, Length, Centre=43 | SI: No.=vi) | Nominal: Size of=25 x 20 | Minimum: Length, Centre=38, Length, Centre=43 | SI: No.=vii) | Nominal: Size of=32 x 15 | Minimum: Length, Centre=38, Length, Centre=51 | SI: No.=viii) | Nominal: Size of=32 x 25 | Minimum: Length, Centre=44, Length, Centre=51 | SI: No.=ix) | Nominal: Size of=40 x 15 | Minimum: Length, Centre=38, Length, Centre=52 | SI: No.=x) | Nominal: Size of=40 x 25 | Minimum: Length, Centre=44, Length, Centre=52 | SI: No.=xi) | Nominal: Size of=50 x 25

| Minimum: Length, Centre=48, Length, Centre=64 | SI: No.=xii) | Nominal: Size of=50 x 40 | Minimum: Length, Centre=56, Length, Centre=64 | SI: No.=xiii) | Nominal: Size of=65 x 50 | Minimum: Length, Centre=67, Length, Centre=76 | SI: No.=xiv) | Nominal: Size of=80 x 40 | Minimum: Length, Centre=67, Length, Centre=89 | SI: No.=xv) | Nominal: Size of=80 x 50 | Minimum: Length, Centre=73, Length, Centre=89 | SI: No.=xvi) | Nominal: Size of=100 x 50 | Minimum: Length, Centre=83, Length, Centre=115 | SI: No.=xvii) | Nominal: Size of=100 x 80 | Minimum: Length, Centre=95, Length, Centre=115 | SI: No.=xviii) | Nominal: Size of=125 x 80 | Minimum: Length, Centre=115, Length, Centre=140 | SI: No.=xix) | Nominal: Size of=125 x 100 | Minimum: Length, Centre=130, Length, Centre=140 | SI: No.=xx) | Nominal: Size of=150 x 80 | Minimum: Length, Centre=120, Length, Centre=160 | SI: No.=xxi) | Nominal: Size of=150 x 100 | Minimum: Length, Centre=135, Length, Centre=160

Table 12 Dimensions of Tees (Increasing on the Branch) Table 13 Dimensions of Crosses, Reducing

(Clause 9.1)

All dimensions in millimetres.

Figure description:

Technical diagram of a T-joint pipe fitting:

• Entities: Main run (labeled 1 and branch (labeled 2.
• Dimension A: Distance from the branch centerline to the ends of the main run.
• Dimension B: Distance from the main run centerline to the top of the branch.
• Units: All dimensions are in millimetres.

Figure description:

Technical diagram of a pipe fitting, specifically a tee increasing on the branch.

• Entities:
  • Horizontal ends: Labeled 1.
  • Vertical ends: Labeled 2.
• Dimensions:
  • A: Center-to-end distance for horizontal run outlets (1.
  • B: Center-to-end distance for vertical branch outlets (2.

Tee increasing (on the branch)

Cross, Reducing | SI: No.=i) | Nominal: Size of=6 x 8 | Minimum: Length, Centre=22, Length, Centre=21 | SI: No.=ii) | Nominal: Size of=8 x 10 | Minimum: Length, Centre=24, Length, Centre=22 | SI: No.=iii) | Nominal: Size of=10 x 15 | Minimum: Length, Centre=32, Length, Centre=27 | SI: No.=iv) | Nominal: Size of=15 x 20 | Minimum: Length, Centre=35, Length, Centre=32 | SI: No.=v) | Nominal: Size of=15 x 25 | Minimum: Length, Centre=43, Length, Centre=35 | SI: No.=vi) | Nominal: Size of=20 x 25 | Minimum: Length, Centre=43, Length, Centre=38 | SI: No.=vii) | Nominal: Size of=25 x 32 | Minimum: Length, Centre=51, Length, Centre=44 | SI: No.=viii) | Nominal: Size of=25 x 40 | Minimum: Length, Centre=52, Length, Centre=44 | SI: No.=ix) | Nominal: Size of=32 x 40 | Minimum: Length, Centre=52, Length, Centre=49 | SI: No.=x) | Nominal: Size of=40 x 50 | Minimum: Length, Centre=64, Length, Centre=56 | SI: No.=xi) | Nominal: Size of=50 x 65

Table 14 Elbows, Tees and Crosses, Side Outlet, Equal

(Clause 9.1)

All dimensions in millimetres.

Figure description:

Entities and Information:

• Subject: Technical diagrams for "Elbow side outlet equal" pipe fittings.
• Fitting Types (left to right:
  • Side outlet 90-degree elbow.
  • Side outlet tee.
  • Side outlet cross.
• Key Dimension: Dimension A represents the distance from the center axis to the face of each outlet across all configurations.
• Units: All dimensions are in millimetres (mm.

Elbow side outlet equal

Tee side outlet equal

Cross side outlet equal

Table 15 Dimensions of Elbows, Round, Male and Female, Equal

(Clause 9.1)

All dimensions in millimetres.

Figure description:

• Entity: Equal Male & Female Elbow pipe fitting.
• Dimension A: Distance from the horizontal centerline to the top edge (female end.
• Dimension B: Distance from the vertical centerline to the right edge (male end.
• Units: All dimensions are in millimetres.

Elbow, Male & Female, Equal i) | Minimum Length, Centre to Face: A (3)=19, B (4)=27, Nominal Size of Outlet (2)=8, Minimum Bore of Male End (5)=6.5, Maximum Bore of Male End (6)=8.0 ii) | Minimum Length, Centre to Face: A (3)=21, B (4)=29, Nominal Size of Outlet (2)=10, Minimum Bore of Male End (5)=8.5, Maximum Bore of Male End (6)=10.5 iii) | Minimum Length, Centre to Face: A (3)=25, B (4)=35, Nominal Size of Outlet (2)=15, Minimum Bore of Male End (5)=11.5, Maximum Bore of Male End (6)=13.0 iv) | Minimum Length, Centre to Face: A (3)=30, B (4)=40, Nominal Size of Outlet (2)=20, Minimum Bore of Male End (5)=18.0, Maximum Bore of Male End (6)=21.0 v) | Minimum Length, Centre to Face: A (3)=37, B (4)=46, Nominal Size of Outlet (2)=25, Minimum Bore of Male End (5)=24.0, Maximum Bore of Male End (6)=26.0 vi) | Minimum Length, Centre to Face: A (3)=43, B (4)=54, Nominal Size of Outlet (2)=32, Minimum Bore of Male End (5)=30.0, Maximum Bore of Male End (6)=32.0 vii) | Minimum Length, Centre to Face: A (3)=49, B (4)=57, Nominal Size of Outlet (2)=40, Minimum Bore of Male End (5)=37.0, Maximum Bore of Male End (6)=39.0 viii) | Minimum Length, Centre to Face: A (3)=59, B (4)=70, Nominal Size of Outlet (2)=50, Minimum Bore of Male End (5)=48.0, Maximum Bore of Male End (6)=51.0 ix) | Minimum Length, Centre to Face: A (3)=68, B (4)=83, Nominal Size of Outlet (2)=65, Minimum Bore of Male End (5)=62.0, Maximum Bore of Male End (6)=66.0 x) | Minimum Length, Centre to Face: A (3)=81, B (4)=94, Nominal Size of Outlet (2)=80, Minimum Bore of Male End (5)=75.0, Maximum Bore of Male End (6)=79.0 xi) | Minimum Length, Centre to Face: A (3)=100, B (4)=115, Nominal Size of Outlet (2)=100, Minimum Bore of Male End (5)=97.0, Maximum Bore of Male End (6)=104.0

Table 16 Dimensions of Elbows, Equal, 135°

Figure description:

• Entity: Elbow-135, Equal
• Angle: $135^{\circ}$
• Dimension: Equal lengths denoted by 'A' on both sides
• Units: Millimetres (mm

Elbow-135, Equal

Table 17 Dimensions of Y-Pieces, Female, Equal (Clause 9.1)

All dimensions in millimetres.

Figure description:

Y-Piece, Equal Technical Drawing

• Type: Y-shaped pipe fitting with three equal branches.
• Geometry:
  • Angles: Two symmetrical branches angled at 60° from the vertical center axis.
  • Dimensions: All three branches have a length designated as A.
• Units: All dimensions are in millimetres.

Y-Piece, Equal | SI No.: (1)=i) | Nominal Size of Outlet: (2)=15 | Minimum Length, Centre to Face A: (3)=27 | SI No.: (1)=ii) | Nominal Size of Outlet: (2)=20 | Minimum Length, Centre to Face A: (3)=35 | SI No.: (1)=iii) | Nominal Size of Outlet: (2)=25 | Minimum Length, Centre to Face A: (3)=36 | SI No.: (1)=iv) | Nominal Size of Outlet: (2)=32 | Minimum Length, Centre to Face A: (3)=44 | SI No.: (1)=v) | Nominal Size of Outlet: (2)=40 | Minimum Length, Centre to Face A: (3)=49 | SI No.: (1)=vi) | Nominal Size of Outlet: (2)=50 | Minimum Length, Centre to Face A: (3)=57 | SI No.: (1)=vii) | Nominal Size of Outlet: (2)=65 | Minimum Length, Centre to Face A: (3)=71 | SI No.: (1)=viii) | Nominal Size of Outlet: (2)=80 | Minimum Length, Centre to Face A: (3)=79 | SI No.: (1)=ix) | Nominal Size of Outlet: (2)=100 | Minimum Length, Centre to Face A: (3)=100

| Minimum Length: A (3)=40.0, A (3).1=64 | Sl No.: (1)=vi), (1).1=xxvii) | Nominal Size of Outlet: (1) × (2) (2)=15 x 10, (1) × (2) (2).1=65 x 25 | Minimum Length: A (3)=38.0, A (3).1=76 | Sl No.: (1)=vii), (1).1=xxviii) | Nominal Size of Outlet: (1) × (2) (2)=20 x 8, (1) × (2) (2).1=65 x 32 | Minimum Length: A (3)=44.0, A (3).1=75 | Sl No.: (1)=viii), (1).1=xxix) | Nominal Size of Outlet: (1) × (2) (2)=20 x 10, (1) × (2) (2).1=65 x 40 | Minimum Length: A (3)=43.0, A (3).1=73 | Sl No.: (1)=ix), (1).1=xxx) | Nominal Size of Outlet: (1) × (2) (2)=20 x 15, (1) × (2) (2).1=65 x 50 | Minimum Length: A (3)=41.0, A (3).1=71 | Sl No.: (1)=x), (1).1=xxxi) | Nominal Size of Outlet: (1) × (2) (2)=25 x 8, (1) × (2) (2).1=80 x 25 | Minimum Length: A (3)=54.0, A (3).1=86 | Sl No.: (1)=xi), (1).1=xxxii) | Nominal Size of Outlet: (1) × (2) (2)=25 x 10, (1) × (2) (2).1=80 x 32 | Minimum Length: A (3)=52.0, A (3).1=84 | Sl No.: (1)=xii), (1).1=xxxiii) | Nominal Size of Outlet: (1) × (2) (2)=25 x 15, (1) × (2) (2).1=80 x 40 | Minimum Length: A (3)=51.0, A (3).1=83 | Sl No.: (1)=xiii), (1).1=xxxiv) | Nominal Size of Outlet: (1) × (2) (2)=25 x 20, (1) × (2) (2).1=80 x 50 | Minimum Length: A (3)=49.0, A (3).1=81 | Sl No.: (1)=xiv), (1).1=xxxv) | Nominal Size of Outlet: (1) × (2) (2)=32 x 10, (1) × (2) (2).1=80 x 65 | Minimum Length: A (3)=60.0, A (3).1=79 | Sl No.: (1)=xv), (1).1=xxxvi) | Nominal Size of Outlet: (1) × (2) (2)=32 x 15, (1) × (2) (2).1=100 x 40

| Minimum Length: A (3)=59.0, A (3).1=105 | Sl No.: (1)=xvi), (1).1=xxxvii) | Nominal Size of Outlet: (1) × (2) (2)=32 x 20, (1) × (2) (2).1=100 x 50 | Minimum Length: A (3)=57.0, A (3).1=100 | Sl No.: (1)=xvii), (1).1=xxxviii) | Nominal Size of Outlet: (1) × (2) (2)=32 x 25, (1) × (2) (2).1=100 x 65 | Minimum Length: A (3)=56.0, A (3).1=100 | Sl No.: (1)=xviii), (1).1=xxxix) | Nominal Size of Outlet: (1) × (2) (2)=40 x 15, (1) × (2) (2).1=100 x 80 | Minimum Length: A (3)=65.0, A (3).1=98 | Sl No.: (1)=xix), (1).1=xxxx) | Nominal Size of Outlet: (1) × (2) (2)=40 x 20, (1) × (2) (2).1=125 x 80 | Minimum Length: A (3)=64.0, A (3).1=115 | Sl No.: (1)=xx), (1).1=xxxxi) | Nominal Size of Outlet: (1) × (2) (2)=40 x 25, (1) × (2) (2).1=125 x 100 | Minimum Length: A (3)=62.0, A (3).1=115 | Sl No.: (1)=xxi), (1).1=xxxxii) | Nominal Size of Outlet: (1) × (2) (2)=40 x 32, (1) × (2) (2).1=150 x 80 | Minimum Length: A (3)=60.0, A (3).1=140 | Sl No.: (1).1=xxxxiii) | Nominal Size of Outlet: (1) × (2) (2).1=150 x 100 | Minimum Length: A (3).1=140

(Clause 9.1)

Table 18 Dimensions of Socket, Reducing Table 19 Dimensions of Caps

Figure description:

• Entity: Socket Reducing (technical drawing
• Dimension A: Overall length of the fitting in millimetres
• Port 1: Larger diameter inlet/outlet
• Port 2: Smaller diameter inlet/outlet
• Context: Clause 9.1 technical specification

All dimensions in millimetres.

SOCKET REDUCING | Sl No.: (1)=i), (1).1=xxii) | Nominal Size of Outlet: (1) × (2) (2)=8 x 6, (1) × (2) (2).1=50 x 15 | Minimum Length: A (3)=25.0, A (3).1=70 | Sl No.: (1)=ii), (1).1=xxiii) | Nominal Size of Outlet: (1) × (2) (2)=10 x 6, (1) × (2) (2).1=50 x 20 | Minimum Length: A (3)=30.0, A (3).1=68 | Sl No.: (1)=iii), (1).1=xxiv) | Nominal Size of Outlet: (1) × (2) (2)=10 x 8, (1) × (2) (2).1=50 x 25 | Minimum Length: A (3)=29.0, A (3).1=67 | Sl No.: (1)=iv), (1).1=xxv) | Nominal Size of Outlet: (1) × (2) (2)=15 x 6, (1) × (2) (2).1=50 x 32 | Minimum Length: A (3)=41.0, A (3).1=65 | Sl No.: (1)=v), (1).1=xxvi) | Nominal Size of Outlet: (1) × (2) (2)=15 x 8, (1) × (2) (2).1=50 x 40

Figure description:

• Entity: Flat Cap ("CAP FLAT"
• Dimension A: Total length/depth of the cap
• Dimension T: Wall thickness
• Units: All dimensions in millimetres
• Features: Schematic shows a cross-sectional view with rounded outer corners and a flat face.

Figure description:

Entity: Cap Dome (technical diagram

Key Dimensions:

• A: Total height or length of the dome.
• T: Wall thickness of the material.

Details:

• The diagram shows a partial cross-section of a cylindrical cap with a rounded end.
• Includes a horizontal centerline indicating symmetry.

NOTE — Flat or dome pattern caps may be supplied at the option of the manufacturer.

| Approximate Size of Square: S (4)=13 | Approximate Height of Square: H (5)=10 | Maximum Internal Diameter: D (6)=— | Minimum Thickness of Metal: K (7)=— | Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=v) | Nominal Size: (2)=20 | Minimum Length of Thread for Basic Gauge: (3)=14.5 | Approximate Size of Square: S (4)=14 | Approximate Height of Square: H (5)=12 | Maximum Internal Diameter: D (6)=— | Minimum Thickness of Metal: K (7)=— | Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=vi) | Nominal Size: (2)=25 | Minimum Length of Thread for Basic Gauge: (3)=16.8 | Approximate Size of Square: S (4)=17 | Approximate Height of Square: H (5)=12 | Maximum Internal Diameter: D (6)=22 | Minimum Thickness of Metal: K (7)=4 | Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=vii) | Nominal Size: (2)=32 | Minimum Length of Thread for Basic Gauge: (3)=19.1 | Approximate Size of Square: S (4)=22 | Approximate Height of Square: H (5)=16 | Maximum Internal Diameter: D (6)=31 | Minimum Thickness of Metal: K (7)=5

| Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=viii) | Nominal Size: (2)=40 | Minimum Length of Thread for Basic Gauge: (3)=19.1 | Approximate Size of Square: S (4)=27 | Approximate Height of Square: H (5)=16 | Maximum Internal Diameter: D (6)=33 | Minimum Thickness of Metal: K (7)=5 | Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=ix) | Nominal Size: (2)=50 | Minimum Length of Thread for Basic Gauge: (3)=23.4 | Approximate Size of Square: S (4)=32 | Approximate Height of Square: H (5)=19 | Maximum Internal Diameter: D (6)=48 | Minimum Thickness of Metal: K (7)=5 | Fittings Allowance in Accordance with IS 554: (8)=31⁄4 | Sl No.: (1)=x) | Nominal Size: (2)=65 | Minimum Length of Thread for Basic Gauge: (3)=26.7 | Approximate Size of Square: S (4)=37 | Approximate Height of Square: H (5)=19 | Maximum Internal Diameter: D (6)=62 | Minimum Thickness of Metal: K (7)=6 | Fittings Allowance in Accordance with IS 554: (8)=4 | Sl No.: (1)=xi) | Nominal Size: (2)=80 | Minimum Length of Thread for Basic Gauge: (3)=29.8

| Approximate Size of Square: S (4)=37 | Approximate Height of Square: H (5)=22 | Maximum Internal Diameter: D (6)=73 | Minimum Thickness of Metal: K (7)=8 | Fittings Allowance in Accordance with IS 554: (8)=4 | Sl No.: (1)=xii) | Nominal Size: (2)=100 | Minimum Length of Thread for Basic Gauge: (3)=35.8 | Approximate Size of Square: S (4)=46 | Approximate Height of Square: H (5)=25 | Maximum Internal Diameter: D (6)=97 | Minimum Thickness of Metal: K (7)=10 | Fittings Allowance in Accordance with IS 554: (8)=41⁄2 | Sl No.: (1)=xiii) | Nominal Size: (2)=125 | Minimum Length of Thread for Basic Gauge: (3)=40.1 | Approximate Size of Square: S (4)=51 | Approximate Height of Square: H (5)=29 | Maximum Internal Diameter: D (6)=120 | Minimum Thickness of Metal: K (7)=12 | Fittings Allowance in Accordance with IS 554: (8)=5 | Sl No.: (1)=xiv) | Nominal Size: (2)=150 | Minimum Length of Thread for Basic Gauge: (3)=40.1 | Approximate Size of Square: S (4)=60 | Approximate Height of Square: H (5)=32 | Maximum Internal Diameter: D (6)=145 | Minimum Thickness of Metal: K (7)=12

| Fittings Allowance in Accordance with IS 554: (8)=5 | Sl No.: (1)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required. | Nominal Size: (2)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required. | Minimum Length of Thread for Basic Gauge: (3)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required. | Approximate Size of Square: S (4)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required. | Approximate Height of Square: H (5)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required. | Maximum Internal Diameter: D (6)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required. | Minimum Thickness of Metal: K (7)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required. | Fittings Allowance in Accordance with IS 554: (8)=NOTE — Plugs of nominal sizes 25 to 150 mm may be either solid or hollow, and the attention of the purchaser is drawn to the necessary of stating in his enquiry and order which pattern is required.

Table 20 Dimensions of Plug

(Clause 9.1)

All dimensions in millimetres.

Figure description:

The image is a cross-sectional technical drawing of a mechanical component. Key information includes:

• Reference Point: A horizontal GAUGE PLANE.
• Vertical Dimensions:
  • H: Height from the top of the component to the Gauge Plane.
  • L: Length from the Gauge Plane to the bottom edge.
• Horizontal Dimensions:
  • S: Width of the top section.
  • D: Internal width of the bottom cavity.
• Notes: All dimensions are in millimetres. The hatched areas represent solid material in section, and a vertical centerline is indicated.

| Sl No.: (1)=i) | Nominal Size: (2)=6 | Minimum Length of Thread for Basic Gauge: (3)=6.5 | Approximate Size of Square: S (4)=6 | Approximate Height of Square: H (5)=6 | Maximum Internal Diameter: D (6)=— | Minimum Thickness of Metal: K (7)=— | Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=ii) | Nominal Size: (2)=8 | Minimum Length of Thread for Basic Gauge: (3)=9.7 | Approximate Size of Square: S (4)=9 | Approximate Height of Square: H (5)=6 | Maximum Internal Diameter: D (6)=— | Minimum Thickness of Metal: K (7)=— | Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=iii) | Nominal Size: (2)=10 | Minimum Length of Thread for Basic Gauge: (3)=10.1 | Approximate Size of Square: S (4)=11 | Approximate Height of Square: H (5)=10 | Maximum Internal Diameter: D (6)=— | Minimum Thickness of Metal: K (7)=— | Fittings Allowance in Accordance with IS 554: (8)=23⁄4 | Sl No.: (1)=iv) | Nominal Size: (2)=15 | Minimum Length of Thread for Basic Gauge: (3)=13.2

Table 21 Dimensions of Elbows, Tees and Crosses, Male, Equal

Figure description:

Nominal Size and Minimum Length for Pipe Fittings

Table of Pipe Fitting Dimensions

Source: IS 1239 (Part 1 Notes: The diagrams depict three types of fittings: an elbow, a tee, and a cross. The dimension 'A' represents the minimum length from the center to the face. Note — Made from heavy tube conforming to IS 1239 (Part 1.)

| Nominal Size of Outlet: (2)=80 | Minimum Length, Centre to Face A: (3)=220 | Minimum Length, Centre to Face B: (4)=100 | Sl No.: (1)=ix) | Nominal Size of Outlet: (2)=100 | Minimum Length, Centre to Face A: (3)=260 | Minimum Length, Centre to Face B: (4)=110 | Sl No.: (1)=x) | Nominal Size of Outlet: (2)=125 | Minimum Length, Centre to Face A: (3)=300 | Minimum Length, Centre to Face B: (4)=115 | Sl No.: (1)=xi) | Nominal Size of Outlet: (2)=150 | Minimum Length, Centre to Face A: (3)=340 | Minimum Length, Centre to Face B: (4)=125 | Sl No.: (1)=NOTE — Made from heavy tube conforming to IS 1239 (Part 1). | Nominal Size of Outlet: (2)=NOTE — Made from heavy tube conforming to IS 1239 (Part 1). | Minimum Length, Centre to Face A: (3)=NOTE — Made from heavy tube conforming to IS 1239 (Part 1). | Minimum Length, Centre to Face B: (4)=NOTE — Made from heavy tube conforming to IS 1239 (Part 1).

Table 23 Dimensions of Twin Elbows and Sweep Tees, Male, Equal

(Clause 9.1)

All dimensions in millimetres.

Figure description:

Technical Drawings: Pipe Fittings

• Units: All dimensions in millimetres.

Twin Elbow, Male, Equal (Left

• Design: Symmetrical Y-style branched fitting.
• Dimensions: Height and horizontal branch lengths are all designated as 'A'.

Sweep Tee, Male, Equal (Right

• Design: Asymmetrical T-style fitting with one sweeping curved branch.
• Dimensions:
  • Vertical distance from base to branch centerline: 'A'.
  • Vertical distance from branch centerline to top: 'B'.
  • Horizontal distance from vertical centerline to end of sweep: 'A'.

| SI No.: (1)=i) | Nominal Size of Outlet: (2)=15 | Minimum Length, Centre to Face A: (3)=80 | Minimum Length, Centre to Face B: (4)=85 | SI No.: (1)=ii) | Nominal Size of Outlet: (2)=20 | Minimum Length, Centre to Face A: (3)=90 | Minimum Length, Centre to Face B: (4)=90 | SI No.: (1)=iii) | Nominal Size of Outlet: (2)=25 | Minimum Length, Centre to Face A: (3)=120 | Minimum Length, Centre to Face B: (4)=100 | SI No.: (1)=iv) | Nominal Size of Outlet: (2)=32 | Minimum Length, Centre to Face A: (3)=150 | Minimum Length, Centre to Face B: (4)=105 | SI No.: (1)=v) | Nominal Size of Outlet: (2)=40 | Minimum Length, Centre to Face A: (3)=170 | Minimum Length, Centre to Face B: (4)=110 | SI No.: (1)=vi) | Nominal Size of Outlet: (2)=50 | Minimum Length, Centre to Face A: (3)=200 | Minimum Length, Centre to Face B: (4)=125 | SI No.: (1)=vii) | Nominal Size of Outlet: (2)=65 | Minimum Length, Centre to Face A: (3)=250 | Minimum Length, Centre to Face B: (4)=135 | SI No.: (1)=viii)

| Nominal Size of Outlet: (2)=80 | Minimum Length, Centre to Face A: (3)=290 | Minimum Length, Centre to Face B: (4)=145 | SI No.: (1)=ix) | Nominal Size of Outlet: (2)=100 | Minimum Length, Centre to Face A: (3)=380 | Minimum Length, Centre to Face B: (4)=170 | SI No.: (1)=x) | Nominal Size of Outlet: (2)=125 | Minimum Length, Centre to Face A: (3)=530 | Minimum Length, Centre to Face B: (4)=195 | SI No.: (1)=xi) | Nominal Size of Outlet: (2)=150 | Minimum Length, Centre to Face A: (3)=620 | Minimum Length, Centre to Face B: (4)=220 | SI No.: (1)=NOTE— Made from heavy tube conforming to IS 1239 (Part 1). | Nominal Size of Outlet: (2)=NOTE— Made from heavy tube conforming to IS 1239 (Part 1). | Minimum Length, Centre to Face A: (3)=NOTE— Made from heavy tube conforming to IS 1239 (Part 1). | Minimum Length, Centre to Face B: (4)=NOTE— Made from heavy tube conforming to IS 1239 (Part 1).

Table 24 Dimensions of Socket Unions Table 25 Dimensions of Pipe Unions

(Clause 9.1)

Figure description:

Entity: Technical drawing of a mechanical fitting (likely a hexagonal nipple.

Key Details:

• Structure: Central hexagonal section with cylindrical extensions on both sides.
• Dimension: Total overall length is labeled as A.
• Units: All dimensions are in millimetres (as per context.
• Alignment: Features a horizontal centerline indicating axial symmetry.

All dimensions in millimetres.

Socket Union | Sl No.: (1)=i) | Nominal Size of Outlet: (2)=6 | Minimum Length: A (3)=38 | Sl No.: (1)=ii) | Nominal Size of Outlet: (2)=8 | Minimum Length: A (3)=44 | Sl No.: (1)=iii) | Nominal Size of Outlet: (2)=10 | Minimum Length: A (3)=51 | Sl No.: (1)=iv) | Nominal Size of Outlet: (2)=15 | Minimum Length: A (3)=57 | Sl No.: (1)=v) | Nominal Size of Outlet: (2)=20 | Minimum Length: A (3)=67 | Sl No.: (1)=vi) | Nominal Size of Outlet: (2)=25 | Minimum Length: A (3)=76 | Sl No.: (1)=vii) | Nominal Size of Outlet: (2)=32 | Minimum Length: A (3)=85 | Sl No.: (1)=viii) | Nominal Size of Outlet: (2)=40 | Minimum Length: A (3)=100 | Sl No.: (1)=ix) | Nominal Size of Outlet: (2)=50 | Minimum Length: A (3)=110 | Sl No.: (1)=x) | Nominal Size of Outlet: (2)=65 | Minimum Length: A (3)=120 | Sl No.: (1)=xi) | Nominal Size of Outlet: (2)=80

| Minimum Length: A (3)=135 | Sl No.: (1)=xii) | Nominal Size of Outlet: (2)=100 | Minimum Length: A (3)=160 | Sl No.: (1)=xiii) | Nominal Size of Outlet: (2)=125 | Minimum Length: A (3)=185 | Sl No.: (1)=xiv) | Nominal Size of Outlet: (2)=150 | Minimum Length: A (3)=210 | Sl No.: (1)=NOTE — Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required. | Nominal Size of Outlet: (2)=NOTE — Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required. | Minimum Length: A (3)=NOTE — Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required.

(Clause 9.1) All dimensions in millimetres.

Figure description:

• Subject: Pipe Union
• Features: Central hexagonal body with two tapered end connectors
• Key Dimension: Overall length denoted by 'A'
• Units: Millimetres (mm

Pipe Union

Table 22 Dimensions of Y-Pieces and Angle Tees, Male, Equal

(Clause 9.1)

All dimensions in millimetres.

Figure description:

Y Piece, Male, Equal

• Design: Symmetrical Y-shaped pipe fitting with three male-tapered ends.
• Angles: Each upper arm is offset 30° from the vertical centerline (60° total spread.
• Dimensions: Upper arms have length 'A'; the base section has length 'B' from the junction center.

Angle Tee, Male, Equal

• Design: Asymmetrical tee fitting with three male-tapered ends.
• Angles: Side branch is offset 60° from the vertical centerline.
• Dimensions: The top vertical section and the angled branch both have length 'A'; the base section has length 'B'.

Contextual Detail

• Units: All dimensions are in millimetres (mm.

| Sl No.: (1)=i) | Nominal Size of Outlet: (2)=15 | Minimum Length, Centre to Face A: (3)=120 | Minimum Length, Centre to Face B: (4)=57 | Sl No.: (1)=ii) | Nominal Size of Outlet: (2)=20 | Minimum Length, Centre to Face A: (3)=130 | Minimum Length, Centre to Face B: (4)=64 | Sl No.: (1)=iii) | Nominal Size of Outlet: (2)=25 | Minimum Length, Centre to Face A: (3)=150 | Minimum Length, Centre to Face B: (4)=70 | Sl No.: (1)=iv) | Nominal Size of Outlet: (2)=32 | Minimum Length, Centre to Face A: (3)=160 | Minimum Length, Centre to Face B: (4)=73 | Sl No.: (1)=v) | Nominal Size of Outlet: (2)=40 | Minimum Length, Centre to Face A: (3)=170 | Minimum Length, Centre to Face B: (4)=76 | Sl No.: (1)=vi) | Nominal Size of Outlet: (2)=50 | Minimum Length, Centre to Face A: (3)=190 | Minimum Length, Centre to Face B: (4)=83 | Sl No.: (1)=vii) | Nominal Size of Outlet: (2)=65 | Minimum Length, Centre to Face A: (3)=200 | Minimum Length, Centre to Face B: (4)=90 | Sl No.: (1)=viii)

1 Bodies made from heavy tube conforming to IS 1239 (Part 1).: Nominal Size of Outlet (2)=1 Bodies made from heavy tube conforming to IS 1239 (Part 1)., Minimum Length A (3)=1 Bodies made from heavy tube conforming to IS 1239 (Part 1). 2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required.: Nominal Size of Outlet (2)=2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required., Minimum Length A (3)=2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required. a washer. Other types of seating are obtainable, if required.

| Minimum Length, Centre to Face: A (3)=205, B (4)=280 | Sl No.: (1)=x) | Nominal Size of Outlet: (2)=65 | Minimum Length, Centre to Face: A (3)=245, B (4)=330 | Sl No.: (1)=xi) | Nominal Size of Outlet: (2)=80 | Minimum Length, Centre to Face: A (3)=290, B (4)=380 | Sl No.: (1)=NOTES | Nominal Size of Outlet: (2)=NOTES | Minimum Length, Centre to Face: A (3)=NOTES, B (4)=NOTES | Sl No.: (1)=1 Bodies made from heavy tube conforming to IS 1239 (Part 1). | Nominal Size of Outlet: (2)=1 Bodies made from heavy tube conforming to IS 1239 (Part 1). | Minimum Length, Centre to Face: A (3)=1 Bodies made from heavy tube conforming to IS 1239 (Part 1)., B (4)=1 Bodies made from heavy tube conforming to IS 1239 (Part 1). | Sl No.: (1)=2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required. | Nominal Size of Outlet: (2)=2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required. | Minimum Length, Centre to Face: A (3)=2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required., B (4)=2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required.

Table 26 Dimensions of Union Bends

(Clause 9.1)

All dimensions in millimetres.

Figure description:

• Entity: Union Bend pipe fitting.
• Key Dimensions:
  • A: Vertical distance from horizontal centerline to the top edge.
  • B: Horizontal distance from vertical centerline to the right edge.
• Components: 90-degree bend, hexagonal union nut, and tapered ends.
• Measurement Units: All dimensions are in millimetres (mm.

Union Bend | Sl No.: (1)=i) | Nominal Size of Outlet: (2)=6 | Minimum Length, Centre to Face: A (3)=54, B (4)=100 | Sl No.: (1)=ii) | Nominal Size of Outlet: (2)=8 | Minimum Length, Centre to Face: A (3)=64, B (4)=115 | Sl No.: (1)=iii) | Nominal Size of Outlet: (2)=10 | Minimum Length, Centre to Face: A (3)=73, B (4)=125 | Sl No.: (1)=iv) | Nominal Size of Outlet: (2)=15 | Minimum Length, Centre to Face: A (3)=83, B (4)=140 | Sl No.: (1)=v) | Nominal Size of Outlet: (2)=20 | Minimum Length, Centre to Face: A (3)=100, B (4)=160 | Sl No.: (1)=vi) | Nominal Size of Outlet: (2)=25 | Minimum Length, Centre to Face: A (3)=120, B (4)=185 | Sl No.: (1)=vii) | Nominal Size of Outlet: (2)=32 | Minimum Length, Centre to Face: A (3)=150, B (4)=220 | Sl No.: (1)=viii) | Nominal Size of Outlet: (2)=40 | Minimum Length, Centre to Face: A (3)=170, B (4)=240 | Sl No.: (1)=ix) | Nominal Size of Outlet: (2)=50

iv) | Normal Size: External Threads=20, Internal Threads=15, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=19, Thickness of Hexagon T, Max=10, Minimum Overall Lengths A, Min=29, Width Across Flats of Hexagon B=27.8 v) | Normal Size: External Threads=25, Internal Threads=15, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=21, Thickness of Hexagon T, Max=10, Minimum Overall Lengths A, Min=31, Width Across Flats of Hexagon B=35.3 nan | Normal Size: Internal Threads=20, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=21, Thickness of Hexagon T, Max=10, Minimum Overall Lengths A, Min=31, Width Across Flats of Hexagon B=35.3 vi) | Normal Size: External Threads=32, Internal Threads=15, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=24, Thickness of Hexagon T, Max=11, Minimum Overall Lengths A, Min=35, Width Across Flats of Hexagon B=47.2 nan | Normal Size: Internal Threads=20, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=24, Thickness of Hexagon T, Max=11, Minimum Overall Lengths A, Min=35, Width Across Flats of Hexagon B=47.2

nan | Normal Size: Internal Threads=25, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=24, Thickness of Hexagon T, Max=11, Minimum Overall Lengths A, Min=35, Width Across Flats of Hexagon B=47.2 vii) | Normal Size: External Threads=40, Internal Threads=20, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=24, Thickness of Hexagon T, Max=13, Minimum Overall Lengths A, Min=37, Width Across Flats of Hexagon B=52.0 nan | Normal Size: Internal Threads=25, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=24, Thickness of Hexagon T, Max=13, Minimum Overall Lengths A, Min=37, Width Across Flats of Hexagon B=52.0 nan | Normal Size: Internal Threads=32, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=24, Thickness of Hexagon T, Max=13, Minimum Overall Lengths A, Min=37, Width Across Flats of Hexagon B=52.0 viii) | Normal Size: External Threads=50, Internal Threads=25, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=27, Thickness of Hexagon T, Max=14, Minimum Overall Lengths A, Min=41, Width Across Flats of Hexagon B=61.1

nan | Normal Size: Internal Threads=32, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=27, Thickness of Hexagon T, Max=14, Minimum Overall Lengths A, Min=41, Width Across Flats of Hexagon B=61.1 nan | Normal Size: Internal Threads=40, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=27, Thickness of Hexagon T, Max=14, Minimum Overall Lengths A, Min=41, Width Across Flats of Hexagon B=61.1 ix) | Normal Size: External Threads=65, Internal Threads=32, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=32, Thickness of Hexagon T, Max=16, Minimum Overall Lengths A, Min=48, Width Across Flats of Hexagon B=79 nan | Normal Size: Internal Threads=40, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=32, Thickness of Hexagon T, Max=16, Minimum Overall Lengths A, Min=48, Width Across Flats of Hexagon B=79 nan | Normal Size: Internal Threads=50, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=32, Thickness of Hexagon T, Max=16, Minimum Overall Lengths A, Min=48, Width Across Flats of Hexagon B=79 x) | Normal Size: External Threads=80, Internal Threads=40, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=35, Thickness of Hexagon T, Max=19, Minimum Overall Lengths A, Min=54, Width Across Flats of Hexagon B=92

nan | Normal Size: Internal Threads=50, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=35, Thickness of Hexagon T, Max=19, Minimum Overall Lengths A, Min=54, Width Across Flats of Hexagon B=92 nan | Normal Size: Internal Threads=65, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=35, Thickness of Hexagon T, Max=19, Minimum Overall Lengths A, Min=54, Width Across Flats of Hexagon B=92 xi) | Normal Size: External Threads=100, Internal Threads=50, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=40, Thickness of Hexagon T, Max=22, Minimum Overall Lengths A, Min=62, Width Across Flats of Hexagon B=117 nan | Normal Size: Internal Threads=65, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=40, Thickness of Hexagon T, Max=22, Minimum Overall Lengths A, Min=60, Width Across Flats of Hexagon B=117 nan | Normal Size: Internal Threads=80, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=40, Thickness of Hexagon T, Max=22, Minimum Overall Lengths A, Min=62, Width Across Flats of Hexagon B=117 xii) | Normal Size: External Threads=125, Internal Threads=80, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=45, Thickness of Hexagon T, Max=25, Minimum Overall Lengths A, Min=70, Width Across Flats of Hexagon B=143

nan | Normal Size: Internal Threads=100, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=45, Thickness of Hexagon T, Max=25, Minimum Overall Lengths A, Min=70, Width Across Flats of Hexagon B=143 xiii) | Normal Size: External Threads=150, Internal Threads=80, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=45, Thickness of Hexagon T, Max=25, Minimum Overall Lengths A, Min=70, Width Across Flats of Hexagon B=168 nan | Normal Size: Internal Threads=100, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=45, Thickness of Hexagon T, Max=25, Minimum Overall Lengths A, Min=70, Width Across Flats of Hexagon B=168 NOTE — External and internal threads shall be made as per IS 554. | Normal Size: External Threads=NOTE — External and internal threads shall be made as per IS 554., Internal Threads=NOTE — External and internal threads shall be made as per IS 554., Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=NOTE — External and internal threads shall be made as per IS 554., Thickness of Hexagon T, Max=NOTE — External and internal threads shall be made as per IS 554., Minimum Overall Lengths A, Min=NOTE — External and internal threads shall be made as per IS 554., Width Across Flats of Hexagon B=NOTE — External and internal threads shall be made as per IS 554.

Table 27 Dimensions of Hexagon Bushes

(Clause 9.1)

All dimensions in millimetres.

Figure description:

• Entity: Mechanical BUSH.
• Views: Side-view cross-section and end-view showing a hexagonal profile.
• Dimensional Labels:
  • A: Overall length.
  • L: Length of the tapered/threaded shank.
  • T: Thickness of the hexagonal head.
  • B: Width across the flats of the hexagonal head.
• Key Features: Hexagonal head for tightening and internal threading (indicated by hidden dashed lines in the circular profile.
• Measurement Units: Millimetres.

BUSH i) | Normal Size: External Threads=8, Internal Threads=6, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=12.5, Thickness of Hexagon T, Max=6, Minimum Overall Lengths A, Min=18.5, Width Across Flats of Hexagon B=15.5 ii) | Normal Size: External Threads=10, Internal Threads=8, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=12.5, Thickness of Hexagon T, Max=7, Minimum Overall Lengths A, Min=20.5, Width Across Flats of Hexagon B=17.9 iii) | Normal Size: External Threads=15, Internal Threads=8, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=17.5, Thickness of Hexagon T, Max=8, Minimum Overall Lengths A, Min=25.5, Width Across Flats of Hexagon B=23.0 nan | Normal Size: Internal Threads=10, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=17.5, Thickness of Hexagon T, Max=7, Minimum Overall Lengths A, Min=25.5, Width Across Flats of Hexagon B=23.0 nan | Normal Size: Internal Threads=10, Length of Useful Threads for Basic Gauge Lengths Plus Clearance L, Min=19, Thickness of Hexagon T, Max=10, Minimum Overall Lengths A, Min=29, Width Across Flats of Hexagon B=27.8