Hydra-Cell metering pumps from Wanner enable users to meet or exceed API 675 performance standards with virtually pulse-less, linear flow.
These pumps achieve superior levels of accuracy, repeatability and linearity, while delivering precise, constant flow by employing unique hydraulic oil management systems, says the company.
To maintain accuracy in a hydraulically-actuated metering pump, the volume of oil on the non-process side of the diaphragm must remain constant.
Hydra-Cell pumps incorporate a replenishment valve in every piston assembly which operates on the suction stroke, thus ensuring optimum actuating oil volume on every diaphragm pressure stroke to provide accuracy that exceeds the performance demands of API 675.
Electronic variable speed drives or mechanical speed variators are used to control flow.
The patented hydraulic management system of the Hydra-Cell metering pumps also protects the diagrams against dry running and vacuum or blocked inlet conditions.
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