Valve Restraints

A Secure Solution

For improved safety, better valve retention and reduced fugitive emissions, Cook Compression specializes in high-security valve restraints.

Cook Compression HSR designs distribute load over multiple studs to significantly reduce typical installation torque requirements. Each stud requires less than half the torque of single-bolt designs, so installation is easier and loading on valves is more accurate. Just as important, HSR restraints stay tight without the need for periodic tightening.

HSR valve restraint
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Advantages

  • Multi-stud design reduces torque requirements by 50% or more
  • Allows easy, accurate loading of cage and valve
  • Reduces risk of damage to valve, cage and cylinder
  • Reliable O-ring seals control emissions better than gaskets or lead washers
  • Easy, economical field retrofit to most compressors
  • Optional configurations offer flexibility and economy
  • Flanged retainer design improves safety by preventing the retainer from backing out under pressure
  • Available with pneumatic unloader assemblies