HSR Design

The HSR design uses a set of multiple studs and an O-ring seal in place of the jack bolt, but still seats the cover on the cylinder with the cover gasket remaining intact.

Advantages of this design include:

  • Requires no machining on the cylinder itself
  • Dramatically reduces torque values needed for proper installation
  • Assembly remains tight (similar to an O-ring cover), eliminating jack bolt loosening problems
  • If existing cylinder covers are steel (not cast), they can be machined for reuse to further reduce costs Requirements

This design requires a new cover, HSR cover, restrainer and set of studs, but retains the existing cover gasket. The cage may be reused or replaced as necessary.

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