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Premier Control Technologies Fluid Solutions

Valveless Piston Pump

Valveless piston pumps and precision dispensers from Premier Control Technologies utilise a unique synchronous rotating and reciprocating ceramic piston design to completely eliminate check valves, clogging, and line leaks. Manufactured by Fluid Metering, this robust positive displacement technology features only a single moving part operating inside inert ceramic and fluorocarbon internals, ensuring highly reliable, drift-free microfluidic handling across strict laboratory setups, OEM medical devices, and automated pharmaceutical filling lines.

The entire range delivers exceptional volumetric consistency with a variation coefficient of less than 0.5% and a self-priming capability up to 4.5 meters. Capable of handling flow rates from microlitres up to 2.3 litres per minute at discharge pressures reaching 6.9 barG, our UK-supplied portfolio spans standalone laboratory units, customisable OEM fixed or variable speed drives, and independent pump heads featuring infinite mechanical flow rate adjustments from 0-100% stroke length.

Fluid Metering has been a leading manufacturer of metering pumps and dispensers for over 60 years in the USA, having introduced the first valveless rotating and reciprocating piston metering pump. Over time, Fluid Metering pumps have been refined and remain a benchmark for accuracy, precision, and durability in the industry.

New 2026 Product Catalogue from Fluid Metering

2026 Brochure from Fluid Metering

Explore the updated catalogue for 2026 from Fluid Metering, Click here to start browsing.

Video demo: Watch the FENYX pump vs a Standard Syringe pump

Advantages of a valveless piston pump

  • There are no valves to service, leak, hang up, or clog.
  • Features only one moving part.
  • Equipped with ceramic internals.
  • Ensures drift-free operation.
  • Offers precision dispensing with a variation coefficient of -0.5%.
  • Flow rates range from microliters to 2.3 liters/min.
  • Provides positive displacement up to 6.9 barg.
  • Capable of self-priming up to 4.5 meters.
  • Features instant reversibility.
  • The fluid path is inert, made of ceramic and fluorocarbon.
  • Performance is viscosity independent.
  • Comes with a wide selection of drives.
An animated diagram showing how a valveless piston pump works
An animated diagram showing how the valveless piston pump internals work.

These pumps are crucial in sectors like medical, laboratory, pharmaceutical, electronics and food, where reliability, repeatability, and adaptability are paramount.

Dispensing consistency is gauged by both accuracy and precision. Accuracy measures how close the average dispense volume is to the target value. Fluid Metering’s CeramPump® consistently achieves an accuracy better than 1% and a repeatability of less than 0.5% for millions of cycles without recalibration.

Their capacities span from microliters per hour to 2,300 ml/min with discharge pressures reaching 6.9 bar. The modular design facilitates easy cleaning and adaptation for various fluids and viscosities. Their valveless design minimizes risks of clogs or leaks, and they can be instantly reversed. Their operation ensures minimal drift from set points, and they come in a variety of materials, offering a range of drives and controllers.

Fluidic pumps serve a myriad of markets and applications, designed for accuracy, precision, and adaptability. We work closely with engineers to devise solutions tailored to specific needs.

The valveless pumping mechanism is achieved through the synchronous movement of the ceramic piston within the perfectly matched ceramic cylinder liner. Each suction/discharge cycle requires one full piston revolution.

Flow rate adjustments made simple:

  • Adjusting the pump head position alters the piston stroke length, thus changing the flow rate.
  • Allows for infinite fine-tuning between 0-100% flow rate.
  • An indicator ensures accurate and straightforward linear calibration.
  • Flow rate modifications can be made while the pump is active or stationary.

Quote to configure your device

Fill out the Configurator Form (Form takes 2-5 minutes to complete) so our engineers can craft the perfect custom solution for you:

Frequently asked questions

A valveless piston pump uses a rotating and reciprocating ceramic piston to move fluid. The unique design eliminates the need for valves, resulting in fewer wear parts and highly consistent flow.
Valveless pumps offer superior reliability, chemical resistance, and precise repeatability. Fewer moving parts mean lower maintenance and longer operational life.
These pumps are widely used in medical diagnostics, environmental testing, biotech, industrial metering, ink dispensing, and analytical instrumentation.
Fluid Metering’s valveless piston pumps can dispense volumes ranging from microliters to litres per minute, with excellent linearity and accuracy.
Yes, FMI pumps are ideal for both continuous metering and precision dispensing applications.
Yes. The wetted parts are typically made from alumina ceramic, PTFE, or stainless steel, making them compatible with a wide range of aggressive or sensitive fluids.
Absolutely. Many FMI pump solutions are tailored for OEM integration. PCT can assist with product selection and application-specific configuration.
Yes. A range of motor drive assemblies, control modules, and digital interfaces are available to support automated or PLC-based systems.
Thanks to their simple and robust design, FMI pumps require minimal maintenance. Regular cleaning may be needed based on the fluid used, but no valve servicing is necessary.
Yes, PCT has extensive experience with Fluid Metering products and can provide full technical support, product configuration help, and service guidance.

Help and advice

A member of our team will be happy to assist with any questions you may have.

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