Product information mzr-11557 · Hermetic inert pump series Description The mzr-11557 micro annular gear pump of the hermetic and chemically inert series is, considering its almost universal suitability for aggressive and corrosive media, a revolution in the pump technology. Its rotors and functional elements being made of ceramics, the pump shows the highest chemical resistance and an outstanding resistance to wear. Thanks to the use of ceramics as bearing and shaft material, a magnetic coupling, and case components made out of alloy C22 (DIN 2.4602), this pump will take up any challenge in the chemical industry applications. Advantages High resistance to corrosion oxidizing and reducing media, acids and bases Hermetically sealed magnetic coupling (NdFeB) Long service life wear-resistant ceramic components Thermical heating optional double shell technology Chemically inert pump head alloy C22, SSiC, Al2O3 and ZrO2-ceramics High-power motor AC-motor for use with external frequency inverter Low pulsation rotary micro annular gear technology, no valves Applications Flow chemistry Mini plant technology Microreaction technology

Technical data Flow rate Displacement volume Maximum system pressure 60 bar (870 psi) (200 bar (2900 psi)*) (inlet pressure + differentialpressure) Differential pressure range Liquid temperature range Viscosity range Velocity range Fluid connection 3/8" NPT internal thread, lateral Wetted parts Pump case alloy C22 (2.4602), optional: stainless steel 316L; seals FFKM (Kalrez® Spectrum™ 6375), optional: FPM, EPDM; shaft/bearing sintered silicon carbide (SSiC); bearing and wetted functional parts Al2O3 ceramics; rotors TAZ composite ceramics, optional: tungsten carbide Ni-based 6-pole NdFeB magnetic...

Flow charts Patents and trademarks Micro annular gear pumps (and housings) are protected by assigned patents: EP 1 354 135 B1; US 7,698,818 B2; DE 10 2011 001 041 B4; CN 103 348 141 B; US 10,012,220 B2; CN 103 732 921 B; US 9,404,492 B2; US 6,520,757 B1. HNPM®, mzr®, MoDoS®, µ-Clamp®, µDispense®, Centifluidic Technologies®, LiquiDoS®, smartDoS®, colorDoS® are registered German trademarks of HNP Mikrosysteme GmbH. Contact HNP Mikrosysteme GmbH Bleicherufer 25 19053 Schwerin Germany