H44H/W/Y American Standard Check Valve

Product overview:

American Standard (ASME) check valves are available in three types: lift, swing, and butterfly. Swing check valves have two bonnet designs: those with pressure ratings of 150Lb-300Lb are bolt-on bonnets with either spiral wound gaskets or metal ring gaskets; those with pressure ratings of 600Lb-2500Lb are self-sealing bonnets with pressure seals of either metal or 316 stainless steel with flexible graphite. Connection types include flange connections and weld neck connections.

Product parameters:

Size range: 1/2"~24" (DN15~DN600)

Pressure rating: ASME 150~2500LB (PN16~PN420) Temperature range: -46°C -600°C

Connection methods: flange, welding, threaded, etc.

Main materials: carbon steel, stainless steel, duplex steel, alloy steel, etc.

Sealing surface hardening treatment method: Stellite alloy and nickel-based alloy overlay welding

Product standards:

Design standard: ANSI B 16.34

Structural length: ANSI B16.10

Connection flange: ANSI B16.15

Testing and Inspection: API 598