Wafer Type Dual Plate Non Return Check Valve

Wafer Type Dual Plate Non Return Check Valve

Dual Plate Wafer Check Valve is defined as a mechanical device that allows a one directional fluid's flow. Dual Plate Wafer Check Valves work through a disc with a spring that opens when the fluid flows in regular direction; and, when the fluid returns, the spring closes the disc to avoid the passage of the fluid.

The most appropriate application of this valve is to absorb backpressure and its consequences, as well as irrigation residues. The design in Walworth's Dual Plate Wafer Check Valves offer a lot of advantages in comparison with other check valves. Their compact size allows it to work as efficiently as any other.

Standard and specification

1.Design and manufacture:API594,API 6D,JB/TB8937;
2.Face to face and end to end:API594,API6D,DIN3202,JB/T8937;
3.Pressure-temperature rating:ASME B16.34,DIN2410,GB/T9124,HG20625,SH3406,JB/T74;
4.Inspection and test: API598,JB/T9092;
5.Pipe flange: JB/T74~90,JB/T9112-9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47. 

Structural Feature

1.Short structural length,only 1/4~1/8 of that of traditional flanged check valve;
2.Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve;
3.Quick valve disc closedown,low water hammer pressure;
4.Applicable for and easily installed for vertical or horizontal pipelines;
5.Smooth flow passageway and small fluid resistance;
6.Flexible action and good sealing performance;
7.Narrow valve travel and small closedown impact;
8.Integrated structure,simple and compact,in beautiful shape;
9.Long service life and good reliability.

Sizes: 1/2" - 48",DN15- DN1200

Pressure Rating: Class150 - Class2500,PN16 - PN420

working temperature: -196~540 degree Celsius.

Material: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, etc.

PRODUCT

WORKSHOP

INSPECTION

PACKING