Spring-energized seal ESI

plasticC-ringgasoline

ESI spring-energized metal C-Ring for internal pressure face sealing applications Applications: •Similar to ECI, but higher loads for use with rougher mating surfaces •Excellent for pressure vessel closures; manways, hand-holes; steam generators, gasoline/diesel engine fire rings, exhaust joints, flanges with a rougher surface finish •Best choice for non-flat mating surfaces •For internally pressurized joints •For externally pressurized joints to avoid passage of working fluid into the seal cavity (reduced working pressure rating) Features: •Lowest leak rate •All plating options available •Excellent footprint with good plastic flow of plating material. •Available in wide range of diameters •Multiple material choices for high temperature strength, good spring-back, corrosion and fatigue resistance •Uses jacket forces, spring forces and hydrostatic forces additively to increase sealing forces at higher pressures •Circular, race-track and other custom shapes available •Tri-lobed or elliptical spring-energized C-Rings available for snap-in/snap-out convenience