LT Series Micropumps

The LT Series micropumps have been developed to serve applications with demanding operational life requirements across the medical, life science, environmental and industrial sectors. In common with all Disc Pumps, LT Series pumps combine silent operation, pulsation-free flow, millisecond response and high precision in a compact form factor.

  • Peak flow 1.20 L/min
  • Peak pressure 270 mbar
  • Peak vacuum -220 mbar
  • Life 17,000+ hours
Over 17,000 hours, cycling 21,000 times per second
     LT Series pumps clock up more than 1.2 trillion cycles.


Model Pressure Flow Vacuum
LT-S2-023 > 270 mbar > 0.55 L/min > 220 mbar
LT-P2-024 > 150 mbar > 1.20 L/min > 150 mbar
  • Peak performance figures for 1 W operation.
  • 17,000 hours is the time at which the normal operational wear process of the pump begins to affect performance ("t1") at 0.6W drive power (60% of the rated 1W power). Beyond t1, the pressure/vacuum capacity will reduce gradually; however the pump will typically continue to operate for many thousands of hours. t1 will be smaller than 17,000 hours at power levels greater than 0.6W.

Request a copy of our Techincal Note TN005: Disc Pump Operational Wear for more information on the relationship between power and lifetime.

  • LEE Ventus is actively developing higher performance pump designs. Contact us to discuss whether we have an alternative design that meets your requirements.
  • Note that the models above supersede the models LT-S2-019 and LT-P2-020.


Mounting Guidance
Mount in any orientation using compliant materials. If using mounting eyes on pump body, LEE Ventus recommends using four compliant o-rings (e.g. 1.42 ID x 1.78 CS Nitrile 70 Shore A) with two o-rings per mounting eye (one above and one below the eye), Nylon M2 bolt and threaded mounting stud (e.g. Wurth Elektronik 9774050243R). This mounting scheme isolates high-frequency vibration and prevents audible noise. Note that metal bolts are not recommended for this reason.

Explore the Disc Pump range

We offer a range of product lines to suit wide ranging requirements.