Wafer Butterfly Valve
General
Size: 28" and above.
Pressure Rating: PN6-PN20
General applications: Water. Oil. Gas.
Design
Design & Manufacture: API 609 are basic, ASME B16.34 ,other norms could be used according to orders.
F TO F dimensions: API 609, ASME B16.10,BS EN 558
Connection: ASME B16.5, EN 1092, JIS 5K-20K. BW, RTJ are available.
Safety design: anti-blow out stem.
General material
BODY: ASTM A126 CAST IRON , ASTM A536 DUCTILE IRON, ASTM A216 WCB
DISC: ASTM A536 DUCTILE IRON, ASTM A351 CF8, CF8M, ALUMINIUM BRONZE C95400, C95500, DSS 2205, 2507
STEM: 13CR,SS304 SS316, XM-19, 17-4PH, INCONEL 718, MONEL K-500
SEAT: EPDM, NBR, VITON
OPERATOR: GEAR UNIT
OTHER SPECIAL MATERIALS ARE AVAILABLE TO CUSTOMIZE.
Test
Inspection and approval norm: API598, API6D.
Quality control
100% Chemical analysis and mechanical test with raw materials of each heat numbers.
100% DPT test with the castings, partly MT or UT test, RT is always available if required.
100% hydraulic test with the shell and seal and low pressure air test.
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