An Australian company that supplies a comprehensive selection of mechanical seals as well as engineered sealing solutions to various Australian industries has found that a Vesconite throttle bushing can extend the life of seals.
A typical single-stage pump includes a throttle bushing that is located below the sealing mechanism.
The throttle bushing supports the shaft as well as being a close clearance bushing and creating a stuffing box cavity with increased pressure differential, reducing flush water requirements.
“Where you have a slurry or fluid particles, it is important to keep this away from the seal,” said Daniel Hechter, Head of Servicing at FITT Resources, in 2017.
“We recommend Vesconite throttle bushings, and have found that pumps perform as expected and that seal life is extended with reduction in flush water requirement,” he commented, noting that, as the supplier for various OEM seal brands and pump repairer, client companies trust this recommendation, and use the bushings as part of a good proven pump repair package.
Above: A 16″ single-stage vertical turbine pump, with an observable Vesconite Hilube bushing
