high pressure fittings

High Pressure Screw Cap

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

Screw Cap

[High Pressure, ASME B16-11]

screw cap
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 cap
DN Norm.
Pipe
Size
End to End
(P)
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 19   16 22 4.8   6.4 6.7
8 1/4 25 27 19 25 4.8 6.4 8.1 10.2
10 3/8 25 27 22 32 4.8 6.4 9.1 10.4
15 1/2 32 33 28 38 6.4 7.9 10.9 13.6
20 3/4 37 38 35 44 6.4 7.9 12.7 13.9
25 1 41 43 44 57 9.7 11.2 14.7 17.3
32 44 46 57 64 9.7 11.2 17.0 18.0
40 44 48 64 76 11.2 12.7 17.8 18.4
50 2 48 51 76 92 12.7 15.7 19.0 19.2
65 60 64 92 108 15.7 19.0 23.6 28.9
80 3 65 68 108 127 19.0 22.4 25.9 30.5
100 4 68 75 140 159 22.4 28.4 27.7 33.0