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Products
Socketweld Fittings
Unions
This product is available in steel, stainless steel, carbon, nickel alloys, aluminum and exotic materials.
Description
Variations
- Socket-weld & Threaded
- Female-Female – Male-Female – Male-Male
- Variants: Union elbows – Union tees
Reference standards
- ASTM A182 – ASME SA182 – 'Forged or Rolled Alloy and STainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service'
- ASTM A105 – ASME SA105 – Carbon Steel Forgings for Piping Applications'
- ASTM A350 – ASME SA350 – 'Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components'
- ASTM A181 – ASME SA181 – Carbon Steel Forgings, for General-Purpose Piping'
- ASTM B564 – ASME SB564 – Nickel Alloy Forgings'
- ASTM B381 – ASME SB381 – 'Titanium and Titanium Alloy Forgings'
- MSS SP-95 – 'Swage(d) Nipples and Bull Plugs'
- BS 3799 – 'Specification for Steel pipe fittings, screwed and Socket-welding for the petroleum industry'
Dimensions
- Diameter : 1/8″ to 3″
- Pressure class : 3000# & 6000#
UNIONS 3000Lbs
| Nominal Pipe Size | L | X | D1 | Z | C | B1 |
|---|---|---|---|---|---|---|
| 1/8″ | 36.0 | 32.0 | 7.6 6.1 |
16.0 | 11.0 | 10.9 10.7 |
| 1/4″ | 42.0 | 38.0 | 10.0 8.5 |
18.0 | 11.0 | 14.4 14.1 |
| 3/8″ | 45.0 | 41.0 | 13.3 11.8 |
19.0 | 11.0 | 17.8 17.5 |
| 1/2″ | 49.0 | 50.0 | 16.6 15.0 |
21.0 | 13.1 | 22.0 21.7 |
| 3/4″ | 56.0 | 54.0 | 21.7 20.2 |
24.0 | 13.5 | 27.3 27.1 |
| 1″ | 59.0 | 63.0 | 27.4 25.9 |
25.0 | 15.2 | 34.0 33.8 |
| 1 1/4″ | 67.0 | 77.0 | 35.8 34.3 |
29.0 | 17.4 | 42.8 42.5 |
| 1 1/2″ | 70.0 | 85.0 | 41.7 40.1 |
30.0 | 18.8 | 48.9 48.6 |
| 2″ | 81.8 | 95.0 | 53.3 51.7 |
35.8 | 21.8 | 61.4 61.1 |
| 2 1/2″ | 90.0 | 122.0 | 64.2 61.2 |
42.0 | 25.8 | 74.2 73.8 |
| 3″ | 103.0 | 140.0 | 79.5 76.4 |
51.0 | 29.1 | 90.2 89.8 |
1. The lower and upper values for each dimension are the minimum and maximum tolerances respectively.
Dimensions are in millimeters
Source: MSS SP-83 – 2006
UNIONs 6000Lbs
| Nominal Pipe Size | L | X | D1 | Z | C | B1 |
|---|---|---|---|---|---|---|
| 1/8″ | – | – | – – |
– | – | – |
| 1/4″ | – | – | – – |
– | – | – |
| 3/8″ | – | – | – – |
– | – | – |
| 1/2″ | 56.0 | 54.0 | 12.6 11.0 |
24.0 | 13.5 | 22.0 21.7 |
| 3/4″ | 59.0 | 63.0 | 16.3 14.8 |
25.0 | 15.5 | 27.3 27.1 |
| 1″ | 67.0 | 77.0 | 21.5 19.9 |
29.0 | 17.0 | 34.0 33.8 |
| 1 1/4″ | 70.0 | 85.0 | 30.2 28.7 |
30.0 | 19.0 | 42.8 42.5 |
| 1 1/2″ | 81.8 | 95.0 | 34.8 33.2 |
35.8 | 21.0 | 48.9 48.6 |
| 2″ | 90.0 | 122.0 | 43.6 42.1 |
42.0 | 23.0 | 61.4 61.1 |
| 2 1/2″ | – | – | – – |
– | – | – – |
| 3″ | – | – | – – |
– | – | – – |
1. The lower and upper values for each dimension are the minimum and maximum tolerances respectively.
Dimensions are in millimeters
Source: MSS SP-83 – 2006