Aerospace Accumulators

Design Features and Benefits
Lightweight composite material for high strength & low weight
Dual seals for positive gas-fluid separation
Self-displacing to achieve max pressure differential
Self-lubricating for extended life cycling
Leak tight construction
Accessories easily added (Thermometer, pressure gauge, piston position indicator, pressure switches etc.)
Maintenance free bellows type accumulators


Our positive displacement hydraulic accumulators are self contained sources of hydraulic power storing nitrogen gas and hydraulic oil under pressure (nominally 3000 PSI). The expansion of the pressurized gas serves to expel the oil from the unit upon demand. The accumulator contains its own reservoir to receive expelled oil from the high pressure side (self displacing).


Valcor Accumulators have applications in Launch Vehicles as backup hydraulic power for Thrust Vector Control (TVC) Actuators where high vibration, large temperature extremes and corrosive fluids are present.

Why choose Valcor?

Valcor Engineering Corporation has been a leading manufacturer of Hydraulic Accumulators for Aircrafts, Helicopters, and Ground Vehicles for over 20 years. Valcor has demonstrated technical excellence by fully qualifying the first Maintenance Free Accumulators (MFAs) in the world for aircraft applications. Our MFAs are used on the latest version of the Navy fighter F-18 E/F.

  • Engineering and manufacturing piston type accumulators since the 1960s
  • MFA bellows since the 1990s
Custom Application Example


Composite Bottle

• Resistant to multiple harsh conditions

• Shatter resistant per MIL-T-25363

• Compatible with a variety of media

• Contact Valcor for further configurations

All Systems are Custom Designed to Customer Specifications