(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
| (1) | (2) | A (3) | B (4) | |
|---|---|---|---|---|
| Sl No. | i) | |||
| Nominal Size of Outlet | 6 | |||
| Minimum Length, Centre to Face | 54 | 100 | ||
| Sl No. | ii) | |||
| Nominal Size of Outlet | 8 | |||
| Minimum Length, Centre to Face | 64 | 115 | ||
| Sl No. | iii) | |||
| Nominal Size of Outlet | 10 | |||
| Minimum Length, Centre to Face | 73 | 125 | ||
| Sl No. | iv) | |||
| Nominal Size of Outlet | 15 | |||
| Minimum Length, Centre to Face | 83 | 140 | ||
| Sl No. | v) | |||
| Nominal Size of Outlet | 20 | |||
| Minimum Length, Centre to Face | 100 | 160 | ||
| Sl No. | vi) | |||
| Nominal Size of Outlet | 25 | |||
| Minimum Length, Centre to Face | 120 | 185 | ||
| Sl No. | vii) | |||
| Nominal Size of Outlet | 32 | |||
| Minimum Length, Centre to Face | 150 | 220 | ||
| Sl No. | viii) | |||
| Nominal Size of Outlet | 40 | |||
| Minimum Length, Centre to Face | 170 | 240 | ||
| Sl No. | ix) | |||
| Nominal Size of Outlet | 50 | |||
| Minimum Length, Centre to Face | 205 | 280 | ||
| Sl No. | x) | |||
| Nominal Size of Outlet | 65 | |||
| Minimum Length, Centre to Face | 245 | 330 | ||
| Sl No. | xi) | |||
| Nominal Size of Outlet | 80 | |||
| Minimum Length, Centre to Face | 290 | 380 | ||
| Sl No. | NOTES | |||
| Nominal Size of Outlet | NOTES | |||
| Minimum Length, Centre to Face | NOTES | NOTES | ||
| Sl No. | 1 Bodies made from heavy tube conforming to IS 1239 (Part 1). | |||
| Nominal Size of Outlet | 1 Bodies made from heavy tube conforming to IS 1239 (Part 1). | |||
| Minimum Length, Centre to Face | 1 Bodies made from heavy tube conforming to IS 1239 (Part 1). | 1 Bodies made from heavy tube conforming to IS 1239 (Part 1). | ||
| Sl No. | 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 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 | 2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required. | 2 Unions are normally supplied with flat seats and fitted with a washer. Other types of seating are obtainable, if required. |
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.