Product Search
Features - Gorman Pressure Balance Packing

Pressure balance packing is designed for elevator jacks and has these features. It is a non-adjustable floating type seal, allowing the cap bolts to be tightly in place. The internal ribs are molded diagonally to provide internal spring-action for positive sealing from zero pressure to 1500 psi.

A single seal is all that is required to provide oil retention. However, when gland clearance is too great, a backup ring is provided to prevent seal extrusion. Some packing boxes are provided with an oil return line arrangement that will require two seals and a spacer (or lantern ring).

Packing friction can affect the operation of the control valve and should be corrected before adjusting the valve. Both a rough upstart and/or a bumpy down-start are an indication of excessive friction. Gorman pressure-balance seals, including GCI wiper and correct installation procedures, will normally correct friction and/or leaking problems.

**All manufacturer names used in this online catalog are for identification purposes only. By including names on this online catalog, GCI does not imply sponsorship, endorsement, affiliation or association with or by any manufacturer.