Top Entry: This union bonnet valve can be permanently installed in the line and services from the top

Construction: Designed to prevent back flow in cryogenic systems. Higher fluid capacity (CV) than poppet or lift check valves. Bronze body and internals. Rugged construction for long life and minimal down time

Sizes: ½” through 2” (15mm through 50mm)

Temperature Rating: -325°F to 150°F (-196°C to +65°

Ends: Threaded (FNPT), or with Sil Brazed Tube (SBT)
SCH-10, Threaded back brazed pipe nipples in 1” increments up to 6”
SCH-40, Threaded back brazed pipe nipples in 1” increments up to 6”
SCH-80, Threaded back brazed pipe nipples in 1” increments up to 6”

Pressure Rating: (Cold, Non-shock)
840 Series 400 PSIG
846M Series 600 PSIG

Sizes 1½” to 2” PED Approved Per EN10204 3.1

Note: Do NOT use for reciprocating gas service.

Top Entry: This bolted bonnet valve can be permanently installed in the line and services from the top

Construction: Designed to prevent back flow in cryogenic systems. Higher fluid capacity (CV) than poppet or lift check valves. 316L stainless steel investment cast body, cap and arm

Sizes: ½” through 4” (15mm through 100mm)

Ends: Socket weld and butt weld schedule 10 and 40

Temperature Rating: -325°F to 150°F (-196°C to +66°C)

Pressure Rating: (Cold, Non-shock)
400 PSIG (26 Bar) ½” - 2”
275 PSIG (19 Bar) 150# ANSI Class 3” and 4”
720 PSIG (50 Bar) 300# ANSI Class 3” and 4”

PED Approved, Approved for US and Canada

Note: Do NOT use for reciprocating gas service.

Our investment cast stainless steel is specified by leading industrial gas companies for storage tank and yard operations.

Ideal for liquid atmospheric gases and LNG storage and handling.

High cycle life and superior sealing.

Valves for hydrogen service can be supplied.
(-425°F to +350°F ).