For low flows at pressures to 2,700 (186 bar) or specific gravity down to 0.49
Armstrong developed the high-leverage series of air-relief traps
especially for venting gases from low-specific- gravity fluids at high
pressures. They use standard Armstrong forged steel bodies with very
high leverage air-relief mechanisms. They are available with screwed,
socketweld or flanged connections.
Sour gas service