To lubricate the seal faces, pumps with dynamic seals rely on the liquid being pumped. This feature is common to pump types such as gear, screw, progressing cavity, sliding vane and piston pumps.

But many liquids, such as burner fuels, solvents and cleaning chemicals are thin and offer poor lubrication or none at all. Pumping them with a seal-reliant pump can mean frequent stops for maintenance and service to avoid premature wear. High liquid temperatures and operating pressures accelerate the wear process.  

Seal wear is industry’s most common cause of reduced pump performance and early failure. The seal-less design of the Hydra-Cell pump eliminates this risk. The non-lubricating properties of the liquid do not affect the pump. Seal-less design is also one of the reasons why Hydra-Cell pumps can run dry without damage.

See below for application examples from information supplied by customers.