Short structural length, only 1/4-1/8 of that of traditional flanged check valve;
Low volume,light weight, only 1/4-1/20 of those of traditional flanged check valve;
Quick valve disc closedown,low water hammer pressure
Wafer Type Dual Plate Swing Check Valve
Nominal diameter: 1.5" ~ 60" (DN40 ~ DN1500)
Pressure range: Class 150 ~ 2500 (PN16 ~ PN420)
Working temperature: -196℃ ~ +560℃
Body material: Carbon steel, Stainless steel, Alloy steel, Bronze
End Connection: RF, RTJ, BW
Two arch disc are fixed onto the valve body with a spindle on which two torsional springs are equipped for installing the butterfly plate onto the valve body sealing face. The butterfly plate pressed by the springs is opened by relying on the medium pressure, and the valve is closed by the spring force and the medium pressure under backflow. It can be installed on horizontal and vertical pipelines.
Inspection and test: API598, JB/T9092;
Design and manufacture: API594, API 6D, JB/TB8937;
Face to face and end to end: API594, API6D, DIN3202, JB/T8937;
Pressure-temperature rating: ASME B16.34, DIN2410, GB/T9124, HG20625, SH3406, JB/T74;
Pipe flange: JB/T74-90,JB/T9112-9124, HG20592-20635, SH3406, ASME B16.5, DIN2543-2548, GB/T13402, API605.
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of wafer double plate check valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.