Frequently Asked Questions

We have listed here the answers to the most frequently asked questions we get from potential clients. If you need more information or have a question not listed here, please contact us, we will be happy to provide all the information you are interested in.

  • We perform all prototype design and construction in our California R&D facility. Prototype design and production time ranges from 2-15 days. Prices vary depending on complexity. Contact us for any questions or a free consultation.

  • Custom is sometimes misinterpreted to mean expensive. This is not the case. At Diener Pumps US we design each pump for a specific application ensuring optimum performance, a small package size, minimum power consumption and long life—resulting in space savings, low power consumption and a lower installed cost.

  • At Diener Precision Pumps US we design and manufacture custom precision gear and metering pumps to fulfill global fluid management OEM requirements in diverse industries.

  • At Diener Pumps US we test every pump under the client's operating conditions. This ensures that the pump performs up to expectations before the client starts using it in their equipment. We can also conduct long-term endurance testing, and environmental and chemical compatibility testing.

  • No, at Diener Precision Pumps USA we design and engineer every pump to suit our customer’s exact needs. We have a minimum volume requirement of 100 pieces/year.

  • The customer provides DPP US with the performance requirements via an Application Data Sheet (ADS). We use this information to size the pump, design the interfaces and set up the test/validation program.

  • The pumps service life will depend on the application (flows, pressures, fluid cleanliness, duty-cycle, etc). Diener US engineering team is experienced in creating life-enhancing designs and takes this into consideration with each application. In many applications, our pumps out last the life of the instrument.

  • Diener Pumps US uses inert materials which resist a wide range of fluids. The wetted materials are chosen in line with the intended application and the fluids that the client's system is designed to handle.

  • Yes, all our pumps are self-priming.

  • Yes, all Diener US pump models are bidirectional.

  • Diener US gear pumps use magnetic coupling to transmit torque from the motor to the pump without a shaft seal, ensuring no leaks and easier cleaning.

  • Diener US gear pumps are typically fitted with BLDC, conventional DC and AC motors. Our metering pumps are usually attached to either stepper or BLDC servo motors (to maintain dispense accuracy).

  • A metering pump is a positive displacement pump used to accurately move small fluid volumes with every movement of a piston inside the pump. Diener US metering pumps all feature adjustable flow rates, meaning they use a ceramic piston with a variable displacement to “dial in” exact flow rates.

  • A gear pump contains two-or-more gears that rotate, carrying small pockets of fluid between the gear teeth. These pockets are squeezed as the gears mesh, forcing the fluid out. At Diener Pumps US we design and manufacture precision micro gear pumps for safe, pulse-free transfer of liquids of diverse composition, viscosity and temperatures in a wide range of applications.

  • Diener Precision Pumps' manufacturing is performed at our facility in Embrach, Switzerland, to the highest Swiss standards for precision and quality. All design, development and prototyping is performed at our R&D facility in California, US.

  • All our facilities - R&D and manufacturing  operate according to ISO 9001:2015. Further certifications for environmental, sanitary, and medical standards are available on a case-by-case basis. Please reach out to us for details.

  • Diener US pumps will generally last the full service life time of the encompassing devise/system, therefore servicing is not required. If performance drop does happen, it is more cost effective to replace the pump head than to service it.