Product name:American Standard flange check valve

Path standards, product specifications of American Standard flange check valve: 3 / 4 "-4" (DN20-100)
work pressure: 1000 PSI, thread to connect BSPT, NPT, DIN2999 manufacturing. 304,321
stainless steel: 316-casting, such as valves, stable quality, sub-standard material, made of heavy ordinary, ordinary materials such as medium-grade valves, for the use of different media of choice.