H44H/W/Y美标止回阀

Product Overview:

There are three types of American standard check valves: lifting, swinging and butterfly. There are two designs of the bonnet of the swing check valve, the pressure level of 150Lb-300Lb is the bolted bonnet, and the gasket has two kinds of wound gasket and metal ring gasket; The valve with pressure grade 600Lb~2500Lb is a self-pressure sealing bonnet structure, and the pressure sealing type has metal seal and 316 stainless steel plus flexible graphite seal. The connection type is flange connection and butt welding connection

Specifications:

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

> Pressure Rating: ASME 150~2500LB(PN16~PN420) > temperature range: -46°C -600°C

> connection methods: flange, welding, threading, etc

> main material: carbon steel, stainless steel, duplex steel, alloy steel, etc

> sealing surface hardening treatment: surfacing Stellite alloy and nickel-based alloy

Product Standards:

Design standard: ANSIB 16.34

Structure length: ANSIB16.10

Connecting flange: ANSIB16.15

Test and Inspection: API598