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51 Series NP190

NP micro magnetic drive gear pumps use the magnetic field to drive the rotation of gears。 The pumps are sealed only with O-rings, and eliminate the risk of dynamic seal failure。 Gears (formed through one-step injection moulding) and bearings made of specially filled PEEK materials, high-precision industrial ceramic shafts, and patented gear tooth profile design, all these components ensure the outstanding life expectancy and wear-resistance of our products。

NP pump is an ideal choice for meeting the demands of low flow rate, high pressure, few fluctuation, corrosion resistance, corrosion resistance, and high temperature resistance。


Product performance curve( Water@1 cp )



Pump dimension

Pump with AC motor(IEC)

51 Series NP190
Nominal displacement: 1.9 mL/rev
Inlet-outlet differential pressure: 20 bar (transport pure water)
Liquid temperature: -60°C to 150°C
Life expectancy: longer than 20000 hours in liquids without impurities; minutes of continuous dry running(for exact data please contact us)
Material: pump body: 316 stainless steel (can install ceramic wear plate)
gear & bearing: one-step injection moulded and specially filled PEEK
shaft: high-precision industrial ZrO2 ceramic
magnet drive: rare-earth magnet covered by PPS plastic
O-ring seal: Viton/EPDM/PTFE
gear type: spur gear for working pressures higher than 7 bar / helical gear for applications that need lower operation noise and fewer pressure fluctuation
recommended inlet filter: 400 mesh and in a closed-cycle system the filter should be installed at the pump outlet. Its passable area should be large enough to avoid affecting normal liquid flow.
Inlet vacuum: -0.85 Bar (depends on rotational speed)
Electric motor: brushed DC/brushless DC/canned magnet brushless DC/ordinary AC/ variable frequency AC
Operation noise at the speed of 2000 rpm: spur gear pump<55dB / helical gear pump<45dB
Rotational speed: 100 ~ 4000 rpm
Thread for connectors: standard type is NPT 1/4’’, and we offer other options.
  • Company:ShangHai Super Fluid Industrial Co.,Ltd
  • Add:Room 821,No 1855,Caoan Road, Jiading district, Shanghai
  • Website:www.jyanj.com
  • Email:tiggylin@vip.163.com
  • Tel:+86-21-69002556 +86-13764319509
  • Production Base:Room304,Building92,New Lvyan Estate,Meilie District,Sanming city,Fujian Province
  • Base Address: FuJian SanMing
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