Fluid Metering
Electronic valveless positive-displacement pumps for precise dosing and fluid metering across automation applications.
Manufacturers use positive-displacement pumps for dosing and fluid metering where repeatable liquid displacement matters. Zaxis eVmP pumps provide a patented valveless design with digitally controlled system-wide volumetric adjustment.
The eVmP uses a rotating and reciprocating ceramic piston rather than external supply or discharge valves. Electronic control supports changes between recipes or batches without a necessary manual adjustment.
Request for QuotePositive-displacement pump selection starts with the process liquid, required volume, flow, pressure, wetted path and integration approach. The eVmP product family includes microliter, milliliter, high-capacity, benchtop, dual and engineering configurations.
Digital control options include 24VDC digital I/O, Ethernet IP, Ethernet TCP/IP and RS485. Ceramic, stainless steel, PVDF, PTFE, PEEK and Rulon material options vary by configuration.
Electronics manufacturers use eVmP systems for liquid-crystal displays, metered adhesives and repeatable integrated dispensing. CIP positive-displacement pumps switch between battery-production batches without manual adjustment.
Environmental metering covers water conditioning and sewage-overflow monitoring, where dosing must fit the project requirements. Ceramic components and valveless flow paths support chemical-feed applications.
Pharmaceutical lines meter reagent kits, strips and soft-gel materials with CIP reciprocating pumps. Sanitary configurations can support FDA standards and contamination-control needs.
OEM equipment can use flexible eVmP adjustment for changing tasks and products without pump disassembly. Packaging applications need repeatable fluid metering across production runs, with electronic control changing volume between batches.
The valveless ceramic-piston approach has no external supply or discharge valves. It is designed around electronically controlled angle-position changes that alter metered-liquid volume.
M-Series, V-Series and VS10-Series configurations state different volume, flow and pressure ranges, while eVmP1 and eVmP2 enclosures package the pump and controls for benchtop or dual-pump use.
Automation systems often use positive-displacement pumps with valves that can clog and require disassembly for cleaning and maintenance. Manual adjustments can add costly downtime lasting hours or days.
The patented eVmP uses no external valves and provides system-wide volumetric adjustment through Ethernet IP, Ethernet TCP/IP, RS485 or 24VDC digital I/O. Ceramic internals, CIP capability and automatic batch changeover support 1% accuracy and a 0.5% coefficient of variation, based on the application.
Zaxis designs, engineers and manufactures pumps in the USA. Configurations can meet FDA standards and REACH and RoHS guidelines.
Pharmaceutical manufacturing requires accurate, repeatable dosing without carryover from previous production. CIP reciprocating pumps support reagent kits, reagent strips and soft-gel manufacturing.
Medical manufacturing can use eVmP systems to dispense buffers for Covid testing and produce single-use or reusable medical devices. FDA-compliant configurations can be customized around other regulatory guidelines.
OEM equipment needs flexible positive-displacement metering for changing tasks and products. Automated dispensing systems can be adjusted without disassembling the pump.
Environmental applications include sewage-overflow monitoring and water conditioning, where precision metering and dosing must fit the project requirements.
Electronics manufacturers use eVmP systems for liquid-crystal displays, metered adhesives and repeatable integrated dispensing.
CIP positive-displacement pumps can switch between battery-production batches and processes without manual adjustment.
Pump-head, drive and wetted-path choices let manufacturers configure electronic metering around production volumes, fluids and integration requirements. The eVmP family includes microliter, milliliter, high-capacity and engineering configurations for packaging, pharmaceutical, environmental, medical, electronics and OEM work.
Positive-displacement metering is used for applications ranging from gel-cap filling and reagent dosing to lubricant application. The same principle can serve microliter or milliliter work, but the appropriate range depends on the fluid and process. A sound selection also considers integration controls, material compatibility and expected maintenance.
Compare stated pump ranges, fluid behavior and controls before choosing a metering configuration.
Microliter dispensing fits applications that need a very small, repeatable shot. Match the series range to the application volume.
Electronic pump adjustment can vary the metered quantity and flow rate.
View M-Series microliter range →Milliliter pumping covers larger controlled doses while keeping the positive-displacement approach. The material and desired cycle rate determine the usable setup.
A valveless ceramic path provides an option where external valves are not preferred.
View V-Series milliliter range →A servo-driven configuration addresses applications with more demanding viscosity or backpressure. Review the entire inlet-to-nozzle system before selecting it.
Pump choice should reflect the actual fluid, pressure and required volume.
View VS10-Series servo range →Metering technology begins with the desired quantity, the fluid and the way that quantity enters the process. Positive displacement moves a known volume through the pump cycle.
Different pump mechanisms have different strengths around pressure, viscosity and maintenance. The selected approach needs to suit the operating conditions.
Electronic controls can add adjustable volume and flow settings to a metering system.
A precise dispense transfers a controlled, repeatable fluid volume into a product, container or assembly process. Reciprocating and rotating mechanisms are two ways to establish that transfer.
Viscosity, abrasiveness and pressure can influence the best equipment choice. High-viscosity fluids may need heating to reduce flow resistance.
Evaluate the pump in the context of the actual material and process rather than relying on nominal category alone.
Pressure surges and cavitation can affect the life of pumping equipment. Water hammer can follow a rapid stop or directional change in a moving fluid.
Cavitation involves vapor bubbles that form and collapse in the pumping system. It can harm components and reduce operating life.
System design, inlet conditions and operating settings should be reviewed before commissioning.
It displaces a defined volume of fluid through a pumping cycle for metering or dispensing.
An electronically controlled actuator changes angle position to change the volume of metered liquid.
No. The eVmP has a rotating and reciprocating valveless ceramic piston with no external supply or discharge valves.
Zaxis offers M-Series, V-Series, VS10-Series, eVmP1, eVmP2 and engineering configurations.
Communications can use RS485, Ethernet TCP/IP, 24VDC digital I/O or Ethernet IP.
eVmP M-SeriesMicroliter volumes from 2.5–100 µL per revolution.
eVmP V-SeriesMilliliter metering up to 1,920 mL/min on the VS drive.
eVmP VS10-SeriesNearly 10 mL per stroke and up to 10 L/min.
