Ring Joint Gaskets
Style 9220 - RX-Type
Phelps Style 9220 are RX-type ring-joint gaskets that are used for high pressure applicationsin the Oil & Gas, oil field drilling, and petrochemicals industry. RX-Type gaskets have slightly increased height and the leverage the internal system pressure to energize and improve the seal as internal pressure increase. Carbon steel, 304 and 316 stainless steel are the most commonly used materials. Below listed pipe sizes & ring number and pressure classes are for API 6B Series Flanges only.