For improved safety, stronger valve retention, reduced fugitive emissions and more reliable sealing, Cook Compression makes both conventional-style and HSR high-security valve restraints.

All designs provide stronger retention with less maintenance than ordinary jack-bolt restraints.

• Conventional styles, as well as custom-engineered HSR designs
• Easy, economical field retrofits for most compressors
• Optional configurations for flexibility and economy
• Available with pneumatic unloader assemblies

The HSR design distributes load over multiple studs to reduce typical installation torque requirements by 50% or more. This allows easy, accurate loading of the cage and valve. Equipped with O-ring seals, it also effectively controls fugitive emissions.