Size: 2″~48″, DN50~DN1200.
Pressure Rating: 50LB~150LB,PN6~PN16,5K~16K
Design Temperature: CWP AMBIENT
General applications: water, oil , gas
Design & Manufacture: API 594, API 6D, ASME B16.34 are basic,other norms could be used according to orders.
F TO F dimensions: API 6D, API 594, ASME B16.10, BS EN 558, JIS 45SERIES
Connection: WAFER AS PER ASME B16.5,ASME B16.47, EN 1092, JIS 5K-20K.RF, RTJ are available.
Structure : dual plates, swing check, spring loaded
GENERAL MATERIAL
BODY AND BONNET: ASTM A536 65-45-12, ASTM A395, ASTM A126, C95400,C95800, CF8, CF8M.
DISC: ASTM A536 65-45-12, CF8, CF8M, CF3, CF3M, 2205, 2507, C95400, C95800.
SHAFT: ASTM A 182 F6A, F304,F316,XM-19, 17-4PH, INCONEL 625/718, MONEL K-400/500
SEAT:EPDM/NBR/VITON.
SPRING: SS316, INCONEL X-750
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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