CPI Compression

Double Ball Check Valves

Ball Check Valves are designed for high-pressure applications where reverse flow and leakage must be kept to minimum. Typical applications include: engine, pump and compressor cylinder, packing lubrication and hydraulic systems.


  • Suitable for high-pressure applications


  • Body: carbon steel/stainlessteel
  • Ball: type 440°F stainless steel
  • Springs: stainless steel
  • Max operating temp: 400°F (204.5°C)
  • Cracking pressure: 80-100 PSI (552 BAR)
  • Max operating pressure: up to 8,000 PSI (552 BAR)
  • Lubricant: oil or grease (petroleum or synthetic)