Spring Check Valve

A valve through which the fluid passes in one direction and backflow of fluid is avoided. The valve acts only under the pressure of fluid having no controller device on outer body. Fluid circulation is controlled by a disc which gets away from valve body when fluid pressures and returned to its previous position when pressure stops.

Spring check valves are used usually in urban water supply, thermal installations of buildings, industrial purposes, pumps, petroleum and oil networks and generally in all networks in which the fluid flows only in one direction. Followings are benefits and advantages of this product:

  • Resistance against corrosion and tear
  • Resistance against sediments
  • Full sealing under any environmental and working circumstances (horizontal, vertical, angled)
  • Valve opening with the least fluid pressure
  • Silent on-off position

Technical Specifications

Order No. Size (inch) A (inch) D (mm) H (mm) SW (mm) Operating Temperature (C) Working Pressure (bar)
5070 G1/2 1/2" 35 47 26 100 16
5071 G3/4 3/4" 41 59 32 100 16
5072 G1 1" 48 62 39 100 16
5073 G1 1/4 1 1/4" 60 64 49 100 16
5074 G1 1/2 1 1/2" 68 73 55 100 16
5075 G2 2" 84 79 68 100 16

Analysis of Materials

Body and all parts of spring check valves manufactured by this Company are according to the last standards, the analysis of which is according to the following table

No. Name of pieces material
1 Main body MS58 Forged brass
2 Bonnet MS58 Forged brass
3 Sealing rubber NBR rubber
4 Valve Hostaform rubber
5 Retaining washer Hostaform rubber
6 Spring Stainless steel