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Series 9C Check Valves

Series 9C Check Valves

Parker’s C series check valves permit free flow in one direction, and dependable shut-off in the reverse direction.

The C Series Check Valve port options include ISO 6149, NPT, BSPP, BSPT and SAE. Material offerings are brass, steel and stainless steel. The steel C Series Check Valve comes standard with a black oxide finish.


  • Power Gen
  • Machine Tools
  • Factory automation
  • Vehicle Assembly Facilities
  • Molding
  • Miscellaneous Industrial
  • Miscellaneous Manufacturing
  • Oil & Gas
  • Machine tools
  • Material Handling
  • Mining
  • Marine


  • Soft seat construction for low leakage
  • Pressures up to 5,000 PSI
  • Available in Brass, Steel and Stainless Steel
  • Port sizes from 1/8 up to 2”


  • Accumulator circuits
  • Tank line backpressure
  • Power units
  • Tank line backpressure
  • High low pump circuits