Wesco Valve & Manufacturing Co

Segmental Compression Piston Ring

Segmental Compression Piston Ring

Safety Seal Segmental Piston Rings have filleted step-cut joints and each section is interchangeable with others of the same size. The filleted joint prevents wire cutting of the ring. Hoop-type stainless steel expanders are standard; crimped type stainless steel expanders are available. Expanders are designed with sufficient tension to hold the ring segments against the cylinder wall. The pressure behind the ring affects the actual seal.