The access valve, large capacity charging valve with integral check valve, fixed level gauge, liquid extraction and pressure relief valve with excess flow check valve are integrated in one unit.

The CGA 555 service connection minimizes accidental connections to the steam service system.

Fitted with 44 "long, ½" OD brass liquid extraction tube.

The liquid extraction pipe contains a spherical check relief valve that opens by allowing steam rather than liquid to equalize pressure.

1 1⁄8" spanner plane.