KB22A is a packing set that comprises of a main U-ring sealing element and a male pressure/support ring.
The main U-Ring sealing element is designed to provide initial sealing force across the sealing faces upon installation. Sealing force is increased under system pressure through the pressure/support ring being forced into the U-shaped cavity, this spreads the sealing lips further to add increased seal contact force.
The KB22A can also be used in an adjustable gland/housing and compressing the seal slightly in its groove. Over compression of the seal however will result in increased seal wear which in-turn decreases seal life. If the user wishes to utilise the compression method, we suggest using one of our lubricated polyurethane materials to help reduce frictional generated heat damage to the seal.