Valcor Engineering Corporation

Missiles & Space Check Valves


Check valves prevent the backflow of process media in hydraulic, propellant and oxidizer systems. Our proprietary technology provides chatter free, stable performance under the most demanding system conditions. They are available in single and redundant valve assemblies. Available soft goods include polymeric or elastomeric seats and seals.


Check valves are used many applications in ground-based and on-board systems, including propellant control for Reaction Control Systems (RCS) and Attitude Control Systems (ACS). Our check valves provide stable operation under high vibration conditions and large temperature extremes”

Design Features and Benefits

  • Extensive material (body and seal) options
  • Low cracking pressures
  • Redundant (series) valve assemblies
  • Numerous sizes and flow rates
  • Chatter free designs