Butt Weld Cast Steel Check Valve
1. Technical Specifications:
(1)Design Standard: API 602/ANSI B 16.34
(2)Face to Face Dimensions: ANSI B16.10
(3)Connection Type: Socket Weld ANSI B 16.11, Threaded End ANSI B1.20.1
(4)Structures: Bolted Bonnet, Welded Bonnet and Seal-sealed Type
(5)Test Standard: API 598
2. Performance Specifications:
(1)Shell Test: 19.5Mpa(800LB), 37.5Mpa(1500LB), 63.0Mpa(2500LB)
(2)Seal Test: 14.3Mpa(800LB), 27.5Mpa(1500LB), 46.2Mpa(2500LB)
(3)Suitable Temperature: Carbon Steel -29-425 Celsius degree, Stainless Steel: -59-540 Celsius degree
(4)Suitable Medium: W. O. G
3. Main Parts and Materials:
(1)Body: A105, LF2, F5, F11, F22, F304, F316
(2)Disc: A276-420+STL, 304+STL, 316+STL
(3)Stem: A276-410, A276-304, A276-316
(4)Gasket: 304+Graphite, 316+Graphite
(5)Bonnet: A105, LF2, F5, F11, F22, F304, F316
(6)Eye Bolt: A193-B7, 304, 316
(7)Pin: A276-410, A276-304
(8)Packing: Flexible Graphite +304, PTFE
(9)Bolt: A193-B7, 304, 316
(10)Gland Nut: A194-2H, 304, 316
(11)Lock Nut: C. S, S. S
(12)Handwheel: A47
(13)Stem Nut: A108-1045, A276-410
(14)Gland Flange: A105, F304
(15)Gland: F6a, A276-304, A276-316
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