Cast Iron Double Flange Butterfly Valve Price With Gearbox

Cast Iron Double Flange Butterfly Valve Price With Gearbox

Flange butterfly valve implementation standards: Design and manufacture of flanged butterfly valve: GB/T12238-89 "Universal valve flange and wafer connection butterfly valve" JB/T8527-1997 "Metal sealing butterfly valve" JIS

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Flange butterfly valve implementation standards:
Design and manufacture of flanged butterfly valve: GB/T12238-89 "Universal valve flange and wafer connection butterfly valve" JB/T8527-1997 "Metal sealing butterfly valve" JIS
Flange size: PN=1.0MPa according to JB/T82.1-94 (original standard JB82-59) "Convex welded steel pipe flange"
PN=1.6MPa according to GB9113.3-88 "convex integral steel pipe flange"
PN=2.5MPa according to GB9113.4-88 "convex integral steel pipe flange"
Structural length of flange butterfly valve: according to GB12221-89 "Flange connection metal valve structure length"
Inspection and test of flange butterfly valve: According to GB/T13927-92 "General valve pressure test"

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