Fig 400 Hammer Union
Working Pressure:
4,000psi(276 bar)through 4-inch sizes;

2,500psi(172 bar)through 5 to 12-inch sizes



Features:
21/2-through 12-inch sizes have O-rings for primary seal

Butt-weld available

Available for sour gas service: 2,500 psi suction, (172 bar) cold working pressure, 5-through 12-inch sizes; 4,000psi (276 bar) coldworking pressure, 1-through 4-inch sizes



Recommended Service:

Manifold and line connections,pump suction,and mud service.
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https://www.rdpmc.com/fig-400-hammer-union.html