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mzr-7255

Product catalog summary

Description: The mzr-7255 is a micro annular gear pump from the hermetic and chemically inert series, designed for aggressive and corrosive media. It features ceramic rotors and functional elements for high chemical resistance and wear resistance. The pump uses SSiC for bearings and shafts, a magnetic coupling, and alloy C22 for case components, making it suitable for chemical industry applications.

Advantages: The pump offers high corrosion resistance to oxidizing and reducing media, acids, and bases. It has a long service life due to wear-resistant ceramic components and features a hermetically sealed magnetic coupling. The compact pump head is made from chemically inert materials, and it includes a precision motor with user-friendly control options.

Applications: The mzr-7255 is suitable for mini plant technology, microreaction technology, and filling electrolytes into battery cells.

Technical Data: The pump has a flow rate of 0.048 - 288 ml/min, a smallest dosage volume of 30 µl, and a displacement volume of 48 µl. It can handle a maximum system pressure of 80 bar and a differential pressure range of 0 – 40 bar. The liquid temperature range is -5 to +60 °C, with an optional extension to -20 to +200 °C. It supports a viscosity range of 0.3 - 1000 mPas and operates with a precision CV of less than 1%.

Wetted Parts: The pump case is made of alloy C22, with optional stainless steel 316L. Seals are made from FFKM, with options for FPM and EPDM. The shaft and bearing are made from sintered silicon carbide, and the rotors are TAZ composite ceramics, with an option for tungsten carbide.

Motor and Interface: The pump is powered by a 24 V DC servomotor with a microcontroller, offering interfaces such as 0–10 V, 0 (4) –20 mA, RS-232, and optional CAN-Bus.

Dimensions and Weight: The pump measures 146 x 70 x 72 mm and weighs approximately 1650 g.

Remarks: Performance may vary based on parameter combinations, and specifications are subject to change without notice. Customized solutions are available upon request.

Accessories: Available accessories include a heat insulation module, electrical heating module, flange connection, and mzr-Touch Control.

Patents and Trademarks: The product is protected by several national and international patents. HNPM®, mzr®, and other related names are registered trademarks of HNP Mikrosysteme GmbH.

Contact: HNP Mikrosysteme GmbH, Bleicherufer 25, 19053 Schwerin, Germany. Phone: +49 385 52190-300, Fax: +49 385 52190-333, Email: [email protected]

Catalog excerpts

Product informationmzr-7255 ■ Hermetic inert pump series Description The mzr-7255 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 SSiC (pressureless sintered silicon carbide) 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 ■ Long service life wear-resistant ceramic components ■ Hermetically sealed magnetic coupling (NdFeB) ■ Compact, chemically inert pump head 146 mm long, alloy C22, SSiC, Al2O3 and ZrO2-ceramics Precision motor and user-friendly control dynamic DC-servomotor with encoder and microcontroller, Precise dosage, low pulsation rotary micro annular gear technology, no valves Applications ■ Mini plant technology ■ Filling electrolytes into battery cells

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