"Triplex pumps are the first choice for applications that rely on a particularly low-pulsation flow rate," says Thomas Bökenbrink, Lead Product Manager Pumps at LEWA. "Due to their design, these pumps have a residual pulsation of only approx. 20 percent, since the flow rates of the individual plungers overlap." In principle, 3-headed pumps can be built in a modular or monoblock design. The combination of several individual units in a modular design requires more space as well as additional couplings and gaskets, which comes at the expense of simplicity and robustness. So far, the lower costs of the modular solution have compensated for the disadvantages of this design. For this reason, LEWA generally met requests for particularly low-pulsation pumps with a three-pump combination of modular LEWA ecoflow drive units. With the new LEWA triplex G3E, however, the pump manufacturer from Leonberg, Germany, is now ushering in a new era for process technology applications with medium hydraulic outputs.

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WANNER has designed and developed a metering pump range that integrates Hydra-Cell Pro seal-less pump technologies for the highest levels of volumetric and energy efficiencies across the full turndown – 100% to 1% of rated flow – for accurate metering performance.

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