water pump / for chemicals / piezoelectric / self-priming
BPH 230V series



  • Media:

    water, for chemicals

  • Operation:


  • Priming:


  • Domain:

    industrial, for the chemical industry, for the food industry, for wastewater treatment, laboratory, medical, for the printing industry

  • Other characteristics:

    mobile, compact, chemical-resistant, low-noise, test, mobile, OEM, chemical process, for desulfurization, sampling, oil-free, for medical applications, medium-flow, corrosion-resistant, analytical, small, for liquified gas, variable-displacement, miniature, for toxic fluids, for hazardous fluids, non-metal, micro-flow, suction, for hydrogen

  • Flow:

    Min.: 0.22 l/min (0.0581 us gal/min)

    Max.: 0.25 l/min (0.066 us gal/min)


The Bimor’s driving force, the bimorph, comprises two parallel piezoelectric wafers. Their nature is to expand or contract depending on the direction of the voltage. Therefore, when an alternating current is applied, one wafer expands then contracts while the other contracts then expands, causing the biomorph to bend. Repeating the cycle creates a pumping action, as the diagram below shows.