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API 6D Long Pattern Dual Plate Check Valve




Dual Plate Check Valve

Technical Data

Design: API 6D-ISO 14313/ API 594
Pressure Temperature Rating: ASME B 16.34
Face to Face, End to End: API 6D
End Connection Dimension: Wafer to suit PN 20 (ASME 150 Class),PN 50
(ASME 300 Class),PN 100 (ASME 600 Class)
Inspection and Testing: ISO 5208/ API 598/ BS 6755 PART 1

Testing Pressure

Part Name Material
Body GG 25/ GGG 40/ A 126 WCB/ A 351 CF 8/ CF 8M
Closure A 217 CA 15/ A 351 CF 8/ CF 8M/ B 62 (85/5/5/5)
Stop Pin AISI 304/ AISI 316
Hing Pin AISI 304/ AISI 316
Spring Stainless Steel 316
Retainer Stainless Steel 316
Seat EPDM
Plate Lug Bearing SS 304/ Brass
Spring Bearing SS 304
Sleeve Nitrile Rubber / EPDM

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