high pressure fittings

High Pressure Socket Welding Coupling

High pressure fittings include forge fabricated carbon and stainless alloyed fittings, with pipe thread and welding joints, and with pressure to 2.000, 3.000, 6.000 and 9.000 LBs, designed in compliance with ASME B16.11 and MSS-SP.

Socket welding couplings include forged carbon-alloy and stainless steel made Coupling and Half Coupling, sizing NPS 1/8~4in to ASME B16/11-2005. They are in general made from raw round bar of diameter 19~85mm.

Socket Welding Coupling

[High Pressure, ASME B16/11]

socket welding coupling
Standard Materials Body — Forged Carbon steel ASTM A105, A350 LF2, A106, A312, A234, A403; and Stainless steel ASTM A182, F304, F304L, F316, F316L, F304H, F316H, F317L, F321, F11, F22, F91
Finishing Treatment Carbon steel — Galvanized or black treated;
Stainless steel — Pickled
General Tolerance See Table of dimensional tolerance of forged socket welding fittings
General Weight See Table of weight list
Dimensions in Millimeters
high pressure socket welding coupling
DN Nom. Pipe
Size
Laying Length Tolerances
±
E
6 1/8 6.5 1.5
8 1/4 6.5 1.5
10 3/8 6.5 3.0
15 1/2 9.5 3.5
20 3/4 9.5 3.5
25 1 12.5 2.0
32 12.5 4.0
40 12.5 4.0
50 2 19.0 4.0
65 19.0 5.0
80 3 19.0 5.0
100 4 19.0 5.0

Socket Welding Half Coupling

[High Pressure, ASME B16/11]

socket welding half coupling
Standard Materials Body — Forged Carbon steel ASTM A105, A350 LF2, A106, A312, A234, A403; and Stainless steel ASTM A182, F304, F304L, F316, F316L, F304H, F316H, F317L, F321, F11, F22, F91
Finishing Treatment Carbon steel — Galvanized or black treated;
Stainless steel — Pickled
General Tolerance See Table of dimensional tolerance of forged socket welding fittings
General Weight See Table of weight list
Dimensions in Millimeters
high pressure socket welding half coupling
DN Nom. Pipe
Size
Laying Length Tolerances
±
F
6 1/8 1.0 1.0
8 1/4 1.0 1.0
10 3/8 1.5 1.5
15 1/2 1.5 1.5
20 3/4 1.5 1.5
25 1 2.0 2.0
32 2.0 2.0
40 2.0 2.0
50 2 2.0 2.0
65 2.5 2.5
80 3 2.5 2.5
100 4 2.5 2.5