(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:
- : 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
| A | B | |
|---|---|---|
| SI No. | i) | |
| Nominal Bore | 6 | |
| Approximate Centres | 44 | |
| Approximate Back to Face | 51 | |
| SI No. | ii) | |
| Nominal Bore | 8 | |
| Approximate Centres | 51 | |
| Approximate Back to Face | 64 | |
| SI No. | iii) | |
| Nominal Bore | 10 | |
| Approximate Centres | 64 | |
| Approximate Back to Face | 70 | |
| SI No. | iv) | |
| Nominal Bore | 15 | |
| Approximate Centres | 89 | |
| Approximate Back to Face | 102 | |
| SI No. | v) | |
| Nominal Bore | 20 | |
| Approximate Centres | 102 | |
| Approximate Back to Face | 121 | |
| SI No. | vi) | |
| Nominal Bore | 25 | |
| Approximate Centres | 114 | |
| Approximate Back to Face | 140 | |
| SI No. | vii) | |
| Nominal Bore | 32 | |
| Approximate Centres | 127 | |
| Approximate Back to Face | 152 | |
| SI No. | viii) | |
| Nominal Bore | 40 | |
| Approximate Centres | 165 | |
| Approximate Back to Face | 178 | |
| SI No. | ix) | |
| Nominal Bore | 50 | |
| Approximate Centres | 190 | |
| Approximate Back to Face | 210 | |
| SI No. | x) | |
| Nominal Bore | 65 | |
| Approximate Centres | 305 | |
| Approximate Back to Face | 292 | |
| SI No. | xi) | |
| Nominal Bore | 80 | |
| Approximate Centres | 356 | |
| Approximate Back to Face | 330 | |
| SI No. | xii) | |
| Nominal Bore | 100 | |
| Approximate Centres | 457 | |
| Approximate Back to Face | 400 | |
| SI No. | xiii) | |
| Nominal Bore | 125 | |
| Approximate Centres | 762 | |
| Approximate Back to Face | 578 | |
| SI No. | xiv) | |
| Nominal Bore | 150 | |
| Approximate Centres | 914 | |
| Approximate Back to Face | 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.
| Nominal Bore (2) | Minimum Outside Diameter A (3) | Minimum Length B (4) | Maximum Inside Diameter of Internal Parallel Thread (5) | |
|---|---|---|---|---|
| i) | 6 | 15 | 19 | 8.637 |
| ii) | 8 | 18.5 | 27 | 11.549 |
| iii) | 10 | 22 | 28 | 15.054 |
| iv) | 15 | 27 | 37 | 18.773 |
| v) | 20 | 32.5 | 39 | 24.259 |
| vi) | 25 | 39.5 | 46 | 30.471 |
| vii) | 32 | 49 | 51 | 39.132 |
| viii) | 40 | 56 | 51 | 45.025 |
| ix) | 50 | 68 | 60 | 56.836 |
| x) | 65 | 84 | 69 | 72.442 |
| xi) | 80 | 98 | 75 | 85.142 |
| xii) | 100 | 124 | 87 | 110.228 |
| xiii) | 125 | 151 | 96 | 135.688 |
| xiv) | 150 | 178 | 96 | 161.088 |
| NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge. | NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge. | NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge. | NOTE — Conformity to col 5 shall be made with 'GO', 'NO GO' plain gauge. | 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.