Stainless Steel Pipe Fittings
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Forged Pipe Fittings
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Stainless Steel Butt Weld fittings Cap
Application:
Butt weld cap is a kind of butt weld fittings.
Butt weld end caps are used for sealing the pipe in the end of pipe, we also call it butt welding end cap.
The key specifications for buttweld fittings are the ASME B16.9 (carbon and alloy fittings) and the MSS SP 43 (that integrates ASME B16.9 for stainless steel, duplex, and nickel alloy BW fittings).
Butt welding fittings can be used at high pressure piping connections.They are strong and have a long service life.Besides they are rather cheap to buy and deploy.
Specification:
ASME B16.9: End Caps
1. Technical Drawings of End Caps(ASME B16.9)
2. Dimensions of End Caps(ASME B16.9)
| NPS | Outside | Length, E | Limiting W.T for | Length, E1 |
| Diameter | Length E | |||
| 1/2" | 21.3 | 25 | 4.57 | 25 |
| 3/4" | 26.7 | 25 | 3.81 | 25 |
| 1" | 33.4 | 38 | 4.57 | 38 |
| 1-1/4" | 42.2 | 38 | 4.83 | 38 |
| 1-1/2" | 48.3 | 38 | 5.08 | 38 |
| 2" | 60.3 | 38 | 5.59 | 44 |
| 2-1/2" | 73.0 | 38 | 7.11 | 51 |
| 3" | 88.9 | 51 | 7.62 | 64 |
| 3-1/2" | 101.6 | 64 | 8.13 | 76 |
| 4" | 114.3 | 64 | 8.64 | 76 |
| 5" | 141.3 | 76 | 9.65 | 89 |
| 6" | 168.3 | 89 | 10.92 | 102 |
| 8" | 219.1 | 102 | 12.70 | 127 |
| 10" | 273.0 | 127 | 12.70 | 152 |
| 12" | 323.8 | 152 | 12.70 | 178 |
| 14" | 355.6 | 165 | 12.70 | 191 |
| 16" | 406.4 | 178 | 12.70 | 203 |
| 18" | 457 | 203 | 12.70 | 229 |
| 20" | 508 | 229 | 12.70 | 254 |
| 22" | 559 | 254 | 12.70 | 254 |
| 24" | 610 | 267 | 12.70 | 305 |
| 26" | 660 | 267 | - | - |
| 28" | 711 | 267 | - | - |
| 30" | 762 | 267 | - | - |
| 32" | 813 | 267 | - | - |
| 34" | 864 | 267 | - | - |
| 36" | 914 | 267 | - | - |
| 38" | 965 | 305 | - | - |
| 40" | 1016 | 305 | - | - |
| 42" | 1067 | 305 | - | - |
| 44" | 1118 | 343 | - | - |
| 46" | 1168 | 343 | - | - |
| 48" | 1219 | 343 | - | - |
*All dimensions are in mm unit.
*Click to view the selection of materials for butt weld pipe fittings.
*Tolerances of dimensions are in conformance with ASME B16.9
*The shape of caps shall be ellipsoidal in conformance to ASME piping Code.
*Length E applies for W.T not exceeding the value given in the 4th column.
*Length E1 applies for W.T greater than that given in the 4th column for 24" and smaller.
For 26" and larger, length E1 can be applied under buyer's approval.
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