SYSTEM FOR RETAINING A VALVE ASSEMBLY IN A CAVITY FORMED IN A CYLINDER BODY OF A COMPRESSOR AND METHOD OF USE THEREOF

摘要

A system for retaining a valve assembly in a cavity formed in a cylinder body of a compressor includes a ring having a through-hole positioned adjacent to the cavity and a cover partially inserted inside a through-hole of the ring. The cover and the ring can slide relative to each other. The position of the cover relative to the cylinder body can be adjusted by tightening a cover retainer. The cover applies a downward force on the valve assembly via a cage. The downward force is used to compress a seal located between the valve assembly and the cylinder body. A seal is positioned between the ring and the cover. The seal remains squeezed when the cover and the ring slide relative to each other. The system can be used to convert a jackbolt cage-cover assembly and may not require significant machining of the cavity to provide a surface-finish with a suitable roughness for a sealing surface.