The pumping action of the Hydra-Cell makes it a true positive displacement pump at all viscosities. Flow rate is independent of discharge pressure.
Typically, Hydra-Cell pumps are used for liquids in viscosities ranging from 0.1 cps to 20,000 cps. Examples are solvents, hot water, turpentine, glues, resins and thick slurries.
Pumps with dynamic seals can ‘leak’ low viscosity liquids past a contact area of rotating surface and static casing, resulting in a loss of flow. Flow rate loss increases as pressure rises and, through time with increasing wear at the rotating contact surface. In the Hydra-Cell pump, this declining performance cycle does not occur because there are no dynamic seals in the design. Unlike many competing technologies, the Hydra-Cell pump does not require lubricating fluids to prevent metal-to-metal contact and is capable of running dry indefinitely without damage.
When pumping high viscosity liquids, the horizontal spring-loaded, disk design of the Hydra-Cell check valves overcomes the “floating” issues associated with vertical ball-and-seat valves. Many viscous materials are shear sensitive. Hydra-Cell's horizontal check valves have proven to have a low shear pumping action not destroying the structure of shear sensitive liquids.
See below for application examples from information supplied by customers.