Flowserve Management Company

Mark David Volz

Glenn Robert Owens, Jr

Jason Crawford Ferris

Rodney Wayne Rynearson

Ryan John Kremer

Jr Owens Glenn Robert

Glenn Robert Owens Jr

A split seal ring having end faces that self-align in both the axial and radial directions is prepared by forming an opposing first pair of angled grooves extending from an inner edge partway across the seal ring inner diameter, and a second pair of angled grooves extending from the inner edge partway across the seal ring rear surface. In embodiments, corresponding grooves meet to form V-shapes. Additional grooves can extend from the outer edge partway across the inner diameter. Corresponding grooves extending from the outer and inner edges on the inner diameter can terminate at locations that are offset radially and/or angularly. By applying an outward force, the seal ring is split at the groove locations into split ring sections having mating end faces. The resulting end face geometry is sufficiently complex to cause both radial and axial realignment as the seal ring halves are mated together.

Radially and axially self-aligning split seal ring

A clamshell half of a split ring mechanical seal face assembly comprises a split seal ring half having circumferential and proximal surfaces that are seated against corresponding radial and axial support surfaces of a holder half. At least one extending member extends from a hole in the proximal surface to an arcuate slot in the axial support surface, or vice-versa, and thereby radially constrains the split seal ring half to remain unitized with the holder half during clamshell assembly, while permitting rotation of the split seal ring half about a shaft axis over a limited range, which in embodiments is between 2 degrees and 20 degrees. Embodiments further include a secondary seal between the holder half and split seal ring half that frictionally resists displacement of the split seal ring half.

Apparatus and method for unitizing split ring halves with holder halves of a clamshell split ring mechanical seal face assembly

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Scotts, MI, United States of America

Mark David Volz