Feature

Miniature low-flow, high-accuracy internal gear pumps

The MZR range of low flow, miniature, positive displacement micro annular gear pumps provide precise, accurate and smooth, low pulse pumping and dispensing of a wide variety of liquids, including low and high viscosity fluids.

13/06/2015 11:22:55

Manufactured by HNP Mikrosysteme in Germany and distributed in the UK by Michael Smith Engineers, the ultra-compact and lightweight range comprises six series of pumps

The High Performance Series constructed in stainless steel are for pumping low and high viscosity liquids of 0.3 to 1,000,000cP at capacities from 0.0015 to 1,152ml/min at differential pressures up to 100bar.

The Low Pressure Series, also in stainless steel, are designed for handling low viscosity liquids from 0.3 to 1,000cP covering capacities from 0.0015 to 1,152ml/min at differential pressures to 5bar. These are ideal for less demanding applications, such as transferring low volumes of non-lubricating liquids.

The Hermetic Inert Series which feature leak-free magnetic couplings, Hastelloy-C construction with SiC and Tungsten Carbide wetted parts, are designed to withstand the challenges of more aggressive liquids. They can handle liquids with viscosities from 0.3 to 1,000cP, capacities from 0.024 up to 1,152ml/min at differential pressures to 60bar.

The Magnetic Hermetic Series also feature stainless steel wetted materials with a leak-free magnetic coupling and integral controller and are suitable for handling liquids which tend to crystallise, or are moisture sensitive. They handle capacities from 4.8 to 72ml/min at differential pressures to 5bar and liquids with viscosities from 0.3 to 1,000cP.

Pumping applications requiring a wider choice of chemically resistant wetted materials will appreciate the Modular Pump Series which handle capacities from 0.0015 to 299 ml/min at differential pressures to 40 bar. They are suitable for liquids with viscosities from 0.3 to 10,000 cP.

Where applications require pumps for an environment with an explosive atmosphere, MZR’s High Performance Series and Hermetic Inert Series with ATEX motors are the best option.

Available in stainless steel or Hastelloy C construction, these models are for liquids with viscosities from 0.3 to 5,000cP and can handle capacities from 0.0015 to 1,152ml/min at differential pressures to 80bar.

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.