NewModel CV

Check valve

Selected documents
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  • Oil and gas industry, chemical and petrochemical industries, power plants
  • Prevents the backflow of gases or liquids in measuring circuits
  • For injection systems, actuator controls, test benches, hydraulic power packs

Special features

  • Safety factor 4:1 for pressurised parts
  • One-piece, robust case construction prevents leaks
  • High repeatability and bubble-tight sealing through self-centring piston
  • Redundant sealing with O-ring and metal cone
  • Leak-tested tightness in accordance with BS6755 / ISO 5208 leakage rate A


The model CV check valves have been developed for the requirements of the process industry. The wetted parts are suited specifically for applications with natural gas and aggressive fluids, but also for water and hydraulic oil.

The simple and robust design, with a safety factor of 4:1, enables model CV check valves a wide spectrum of use. The valve design and the high-quality sealing materials ensure high durability and tightness.

The sealing element (piston) has a double sealing system from an elastic O-ring and a metal cone. With any back pressure, the soft O-ring and then the sealing face of the metal cone prevent the reverse flow of the medium. This principle of double sealing ensures reliable leak tightness.

Check valve
  • Check valve
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