China Check Valve manufacturers Executive standard Deign specFaca to faceFlanged endTest and check GB/T12235GB/T12221ASME B16.5JB/T9092 Main performance specification Nominal pressureShell testBody materialApplicable medium 1.6MPA2.4CF8/CF8MWATER,STEAM,OIL MAIN external and connecting dimensions DNLDD1D2b-fZ-d 401601451108516-34-18 5017016012510016-34-18 6518018014512018-34-18 8020019516013520-38-18 10021021518015520-38-18 12528024521018522-38-18 15030028024021024-38-23 20038033529526526-312-23 http://www.zjxhvalve.com/check-valve/