Check valves made by JC valves are valued because their bodies and covers are high quality cast and precisely machined to prevent stress concentration.

Check valves have an unobstructed passageway, with a full-opening when required. The design of the body/cover gasket varies will be a a male-female connection with a graphite or spiral wound gasket in case of a Class 150 to 600 check valve; whereas it will be a a ring type joint in case of Class 900 and above check valves.

In pressure seals, high purity graphite being located between the body and the body retainer ring .

Bolted Cover

  • VR150BC-Class 150
  • VR300BC-Class300
  • VR600BC-Class 600
  • VR900BC-Class 900
  • VR1500BC-Class 1500
  • VR2500BC-Class 2500

Pressure Seal Range

  • VR900PS-Class 900
  • VR1500PS-Class 1500
  • VR2500PS-Class 2500

Everything mentioned above is available to you through CMS Pumps and Valves.

Bolted Cover

While not a valve in the traditional sense, check valves serve an important application—namely to prevent flow in one direction while allowing it in the other. A check valve is self-actuated and designed to prevent fluid from flowing back into the system (prevent reverse flow). Real-life applications include preventing backflow into an injection line or into a pump. The fluid flow opens the valve by forcing a disk or ball in one direction. When the flow stops, the disk or ball is seated and closes the valve. They can be installed in horizontal or vertical upward flow piping.






Pressure Seal