high pressure fittings

High Pressure Screw 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.

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

Screw Coupling

[High Pressure, ASME B16-11]

screw 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 Weight See Table of weight list
Dimensions in Millimeters
high pressure screw coupling
DN Norm.
Pipe
Size
End to End
(W)
Outside
Dia. (D)
End Wall
Thickness
(Min.) (G)
Length
of Thread
(Min.)
3.000 & 6.000 3.000 6.000 3.000 6.000 B L2
6 1/8 32 16 22 4.8   6.4 6.7
8 1/4 35 19 25 4.8 6.4 8.1 10.2
10 3/8 38 22 32 4.8 6.4 9.1 10.4
15 1/2 48 28 38 6.4 7.9 10.9 13.6
20 3/4 51 35 44 6.4 7.9 12.7 13.9
25 1 60 44 57 9.7 11.2 14.7 17.3
32 67 57 64 9.7 11.2 17.0 18.0
40 79 64 76 11.2 12.7 17.8 18.4
50 2 86 76 92 12.7 15.7 19.0 19.2
65 92 92 108 15.7 19.0 23.6 28.9
80 3 108 108 127 19.0 22.4 25.9 30.5
100 4 121 140 159 22.4 28.4 27.7 33.0

Screw Half Coupling

[High Pressure, ASME B16-11]

screw 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 Weight See Table of weight list
Dimensions in Millimeters
high pressure screw half coupling
DN Norm.
Pipe
Size
End to End
(W)
Outside
Dia. (D)
End Wall
Thickness
(Min.) (G)
Length
of Thread
(Min.)
3.000 & 6.000 3.000 6.000 3.000 6.000 B L2
6 1/8 32 16 22 4.8   6.4 6.7
8 1/4 35 19 25 4.8 6.4 8.1 10.2
10 3/8 38 22 32 4.8 6.4 9.1 10.4
15 1/2 48 28 38 6.4 7.9 10.9 13.6
20 3/4 51 35 44 6.4 7.9 12.7 13.9
25 1 60 44 57 9.7 11.2 14.7 17.3
32 67 57 64 9.7 11.2 17.0 18.0
40 79 64 76 11.2 12.7 17.8 18.4
50 2 86 76 92 12.7 15.7 19.0 19.2
65 92 92 108 15.7 19.0 23.6 28.9
80 3 108 108 127 19.0 22.4 25.9 30.5
100 4 121 140 159 22.4 28.4 27.7 33.0