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BS1868 Swing Check Valve isused to prevent backflow of fluid, which could damage equipment or upset theprocess. The non return swing check valve is especially useful in protecting apump in liquid applications or a compressor in gas applications from backflowwhen the pump or compressor is shut down. The BS1868 cast steel Swing checkvalve is also applied in process systems that have varying pressures, whichmust be kept separate.

Standard:

BasicDesign: API 6D, ASME B16.47, BS1868, GOST

Face toFace: ASME B16.10, API 6D, EN558, ISO5752

Flange Ends:ASME B16.5, ASME B16.47, EN1092

BWEnds: ASME B16.25

PressureTest: API 6D, API 598, EN12266-1

Design Feature:

Swing Check,Metal Seat

FlangeEnds or BW Ends

BoltedCap or Pressure Seal Cap

InternalHinge Pin or External Hinge Pin

WithLever and Weight

WithHydraulic Damper

Size Range: 2"to 36" (DN50 to DN900)

Pressure Class: Class150 to Class 2500 (PN16 to PN420)

Material:

Body:WCB, LCB, LCC, WC1, WC6, C5, CF8, CF8M, CF3, CF3M, CF8C, 4A, 5A

HingePin: F6a, F304, F316, F304L, F316L, F321, F51

Trim:HF HFS, API 600 2009 Table 8

Painting:Epoxy, RAL9006

Optional:

SpecialClass, Pressure Seal Bonnet

NACE MR01-75

WithLever and Weight

WithHydraulic Damper