Capacity Control Systems

Valve Unloaders and Clearance Pockets

To improve compression efficiency, reduce power consumption and prolong driver life, Cook Compression provides custom-engineered plug unloaders, finger unloaders and clearance pockets in a variety of configurations.

Most compressors can be retrofitted in the field, and manual unloaders can be converted to pneumatic actuation.

Valve actuator manufacturing at DPO facility
Optima plate valve with finger unloader

Cook Compression Advantage

  • Custom engineered
  • Improves operating flexibility
  • Field-retrofit assistance
  • Conversion from manual to pneumatic actuation

Related Products & Services

Manley compressor valve cutaway

Advanced Valve Designs

From the original radiused-disc Manley® valve to the extreme reliability of the patented MOPPET® valve, Cook Compression has pioneered developments in valve designs and materials.
Valve repair and reconditioning at Odessa service facility

Valve Reconditioning

A compressor functions only as well as its suction and discharge valves. No matter what type of compressor valves you use, Cook Compression can provide expert repair and reconditioning services.
HSR valve restraint using existing cage

Valve Restraints

For improved safety, better valve retention and reduced fugitive emissions, Cook Compression specializes in high-security valve restraints.
Valve indicator port installed in the field

Indicator Ports

Cook indicator ports provide safe, easy access for monitoring cylinder pressure. It uses a connection that passes through the center of a valve and extends out the cylinder.