Non Return Valve

DVPL offers complete range of check valves with heavy duty, bolted cover, renewable seat ring, and body mounted disc swing type. Valves are straight through flow which works automatically. They are opened by the force of velocity pressure and closed by the force of gravity and back pressure. The valves are single direction flow and restrains flow in opposite direction. Distortion, wear and noisy operation of the valve can be avoided by selecting the size of the valve on the basis of flow conditions. Flow directions are marked as cast on the body for ease of installation. Swing Check valves are adequate for all service media. Valves can also be supplied with counter weights and dash pot arrangement depending upon the condition and request.

  • No penetration of hinge pin to outside eliminating possibility of pin seal leakage and allowing for in-line service.
  • Compact cage unit: all moving parts are attached to the carrier and can be removed easily for service.



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