Single-plate Wafer Check Valve
The single-plate wafer check valves are swing type, that performs the same with swing check valve with much less cost. The disadvantage of this single-plate wafer check valves is, the inside diameters of the valves can only meet 60-80% of Norminal Pipe Size(NPS), which limits the flow coefficient.
 
Features of Single-plate Wafer Check Valves:
One Piece Cast Steel Body
Short Face-to-face
Reduced Bore, Swing Type Single Plate
Disc Spring Available
 
Applicable Standards of Single-plate Wafer Check Valves:

Design&Manufacture	API 6D, API 594
Face to Face:	API 6D, ASME B16.10, EN 558
Connection End	ASME B16.5, EN 1092, JIS B2220
Test and Inspection	API 6D, EN 12266, API 598

Sizes: 2" - 36" or DN50 - DN900
Pressure Rating: Class150 - Class600 or PN16 - PN100
Material of Valve Body: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, etc.
 
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