Diaphragm pumps with variable eccentric drives

The new piston diaphragm pumps of the series R 510.1 and R 511.1 (photo) achieve delivery rates of 65 to 1,900 L/h at pressures up to 220 bars, making them suitable for a wide range of applications, including those in the petrochemical industry. The new 510.1 and 511.1 stroke mechanisms have been designed as variable eccentric drives, which has the following benefits: It enables a linear and precise stroke-length setting and thus very precise metering even with large flowrates and high pressures. Due to the harmonic movement sequence, even for partial stroke operation, these pumps produce significantly less pulsation than other metering pumps. As a result, the wear and the complexity for pulsation damping are minimized in the complete system. — Seybert & Rahier GmbH & Co. KG, Immenhausen, Germany

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