Wanner Engineering, Inc. (Minneapolis, MN), announces the introduction of its new Hydra-Cell Metering Solutions P700 Series metering pumps. They feature a hydraulically balanced, multiple-diaphragm design to provide smooth, linear, virtually pulse-free flow without the need for expensive pulsation dampeners. Employing Variable Frequency Drive (VFD) electronic flow control adjustment, P700 metering pumps deliver precise, accurate flow throughout the turndown range at up to 1394 gph (4396 lph) with discharge pressure ratings to 1200 psi (83 bar), Wanner Engineering states.
As part of the extensive line of Hydra-Cell seal-less pumps, the P700 features patented diaphragm position control that protects the pump and enables operation in case of a closed inlet. Since the process fluid is not used for lubrication, the P700 can run dry indefinitely. According to the company, a replenishment valve in every piston assembly ensures optimum actuating oil on every stroke for continuous accuracy.