Abstract: A seal cartridge for a face seal comprising an annular housing having an inner and outer wall and a back wall; a seal ring composite in said housing; a first resilient member disposed between said housing and said seal ring composite for providing an axial bias on said seal ring composite, said seal ring composite including a support shell and a sealing insert supported in said shell for providing a primary seal with a rotor; a second resilient member disposed between said seal ring composite and one of said inner and outer walls for providing a secondary seal; a rotor in said housing, said rotor having a sealing ring groove between said rotor and a shaft to be engaged, said groove having an inner end and an outer end; and a sealing ring disposed in said groove, said groove having a width at its inner end approximately equal to or less than the width of said sealing ring and a width at its outer end confronting the shaft greater than the width of said sealing ring for sealing the rotor to the shaft and inhibi

Abstract: A mechanical split seal includes a tapered carbon split seal ring and a silicon carbide split mating ring. The tapered seal ring is compressed by a tapered seal ring shell which has a split "O" ring disposed in the taper to provide even force and improved sealing. The shell is biased toward the seal ring by multiple springs retained by a non-split cup. The mating ring is supported by a gland which includes a split gland packing assembly for compressing packing material onto the shaft. Used as a pump seal, the seal can be cooled by circulation created by the fluid supplied from either the pump input or output.

Abstract: A mechanical face seal which includes a non-rotatable seal ring and a rotatable mating ring biased into rubbing engagement. The non-rotatable seal ring is disposed in a stationary housing and is axially biased toward the rotatable mating ring which is fixed to a rotatable shaft. An anti-rotation member is pressed into the housing and is engageable with the non-rotatable seal ring to prevent its rotation while allowing axial movement thereof.

Abstract: A split-ring radially expandable under centrifugal force for damping vibrations of a rotary annular bellows by pressing against the inner surfaces of at least some of the convolutions of the bellows as the speed of the bellows increases. Preferably, the split-ring is positioned in a channel for rotation with the bellows and for radial expansion as a function of the rotary movement, while restrained from axial movement with respect to the bellows.