The Static Face™ Seal eliminates O-ring associated leakage problems in 4-bolt split flange assemblies to pressures of 10,000 psi and beyond. Consisting of an "L" shaped elastomeric sealing element and a mating nonextrusion ring, the Static Face Seal is a "drop-in" replacement for standard O-ring seals. At zero or low pressures, the Static Face Seal performs much like a standard O-ring, axial compression ("squeeze") deforming the resilient "L" shaped elastomeric member. As pressure builds, the elastomeric part transmits full system pressure to the nonextrusion ring, bringing it into positive contact with the port face. During extreme pressure spikes, impulse or shock loading, bolts can momentarily stretch, opening a clearance between the flange shoulder and port face. The Static Face Seal's non-extrusion ring-already under an axial load-merely follows the motion, effectively bridging the same clearance that causes O-ring leakage and failure.
MATERIALS
Elastomers
Thermoplastics
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LITERATURE
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