Wafer Type Double Disc Swing Bronze Check Valve (Aluminium Bronze)

• 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. 

Overview

Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.

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.

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