Cartridge Valves

These valves push the envelope of higher pressures and temperatures while successfully operating in both clean and corrosive, debris laden fluids tested to date.


Building on the Gilmore pedigree in wireline tool sampling valves and the proven line of drilling control valves with over a half century of experience, we have engineered a reliable line of downhole solutions for a variety of tool applications in drilling and measurements, rotary steerable and smart completions.

 Downhole  | Production

Cartridge Flex Valve


The new generation of the traditional 2-Way/2-Position valve incorporates the dual direction Key Seal™ along with improved materials, and increased pressure and temperature capability.

  • Sizes: Custom
  • Connection Types: 2-Way/2-Position
  • Pressure Range: Up to 28,500 psi
  • Styles: Normally Open, Normally Closed

Cartridge Flex Valve


Designed where space is a premium, and weight must be minimized, this patented 3-Way/2-Position valve offers flexibility in operation.

  • Sizes: Custom
  • Connection Types: 3-Way/2-Position, Biased Selector, Biased Director, Non-Biased
  • Pressure Range: Up to 20,000 psi
  • Styles: Normally Open, Normally Closed

Manifold Pilot Valve

The cartridge check valve is originally designed for debris laden application such as downhole formation fluid pumps.  Fully capable of working on clean fluids or formation fluids, this valve carries the advantages of compact shear seal technology, Key Seal dual direction sealing, and compact size.  Cracking and reseating pressures are customizable for the application.

  • Sizes: Scalable, flexible design options
  • Connection type: Cartridge
  • Pressure Range: Scalable pressure rating based on customer requirements.
  • Styles: Compact

Cartridge Check Valve


By combining our smart completions valve technology with the Key Seal™, we have developed a compact cartridge or manifold mounted 4-Way/2-Position valve for piloting applications including higher temperatures and pressures.

  • Sizes: Scalable, flexible design options
  • Connection Types: 4-Way/2-Position, Manifold, Cartridge, 3-Way/2-Position
  • Pressure Range: Up to 10,000 psi
  • Styles: Mechanical, Hydraulic, Electro-Mechanical, Non-interflow

Cartridge Regulator

Proserv’s Piloted Precision Regulator is a reliable debris tolerant high performing low deadband design utilizing Key Seal™ technology.

  • Sizes: Custom
  • Connection Types: Panel mount, Stand alone, Cartridge
  • Pressure Range: Up to 30,000 psi
  • Styles: Pilot, Mechanical, Air Dome