Fluid Metering
Fluid Metering is a leading manufacturer of engineered precision fluid control solutions pioneering the first valveless rotating and reciprocating piston metering pump concept in 1959. Enhanced and improved over the years, they continue to specialize in the design and production of precision dispensing pumps and metering systems setting the industry standard for a high degree of accuracy, precision, and reliability.
Metering Pumps
Laboratory Pumps

Variable Dispense Pump
FENYX® Variable Dispense Pump combines the function of priming, flushing, and dispensing into one device, which provides accurate and repeatable dispense volumes of 1 to 400 µL in a small lightweight package.
Product Details
The innovative, low-profile design offers unparalleled accuracy and precision with an electrical and mechanical upgrade that can dispense multiple volumes with the same pump. FENYX Variable Dispense Pump is available in three configurable options1 and is an ideal solution for OEM Medical and Life Sciences Markets.
| Available Options | Dispense Volume Range (μl/rev) | Flow Rate Range (mL/min) |
|---|---|---|
Specifications
FENYX-100, FENYX-200, FENYX-400
Motor Type
Rotational: NEMA 17 (43mm)
Linear: NEMA 11 (28mm)
Motor Speed
Rotational: Up to 1000 rpm
Linear: Up to 1900 rpm
Electrical (Rated Current)
Rotational: 2.0A
Linear: 1.0A
Operating Temperature Range
0°C to 50°C (32°F to 122°F)
Operating Pressure Range
0-30 psig (0-2.1 bar)2
Non-Contact Dispensing
FENYX Variable Dispense pump offers non-contact capabilities down to 4µL. Eliminate the need for probe tip changes and washing, resulting in streamlined accuracy, efficiency, and precision.
Software
Download our controller software to install and configure the pump into your system.
FAQ's
Regulatory Compliance
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Disclaimer
1 The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
2 Ratings dependent on selected pump heads.
Variable Dispense Pump
The FENYX+™ Variable Dispense pump builds upon the proven performance of its predecessor by significantly expanding its flow range and enhancing versatility. Engineered to meet the evolving demands of the life sciences sector, this next-generation pump delivers precise and reliable fluid handling across a broad spectrum of applications.
Product Details
This technologically advanced fluidic device1 not only meets the growing demand for simplified architecture, it also provides increased throughput, decreased cost of ownership, and precise dispenses.
| Available Options | Dispense Volume Range (μl/rev) | Flow Rate Range (mL/min) |
|---|---|---|
Specifications
Motor Type
Rotational: NEMA 23 (57mm)
Linear: NEMA 14 (35mm)
Motor Speed
Rotational: Up to 1150 rpm
Linear: Up to 1750 rpm
Electrical (Rated Current)
Rotational: 4.2A
Linear: 1.5A
Operating Temperature Range
0°C to 50°C (32°F to 122°F)
Operating Pressure Range
0-30 psig (0-2.1 bar)2
Software
Download our controller software to install and configure the pump into your system.
FAQ's
Explore the answers to the top questions we receive about FENYX Variable Dispense Pump.
Regulatory Compliance
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Disclaimer
1 The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
2 Ratings dependent on selected pump heads.

Pulseless Flow Nanoliter Dispensing Pump
A compact, linearly driven, ceramic piston pump, capable of dispensing less than 1 microliter with exceptional precision and accuracy. A vastly optimized driving mechanism means TRYTON has only THREE moving components. Plus, Fluid Metering’s distinct CeramPump® technology ensures a longer lifetime and superior chemical inertness.
Product Details
| Dispense Volume Range | Flow Rate Range | Dispense Resolution | Motor Speed Range |
|---|---|---|---|
Specifications
Motor Frame
Linear: NEMA 17 (43mm)
Electrical (Rated Current)
1.5A
Operating Temperature Range
-20°C to 50°C (-4°F to 122°F)
Operating Pressure Range
0-100 psi (0-6.89 bar)1
Software
Download our controller software to install and configure the pump into your system.
FAQ's
Explore the answers to the top questions we receive about FENYX Variable Dispense Pump.
Regulatory Compliance
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Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 Ratings dependent on selected pump heads.
STF Positive Displacement Adjustable Dispensing Pump
The STF is an advanced miniaturized fluidic system designed to control small volumes of fluid at the microscale level for a broad range of applications. It is currently available in standard drive configurations ranging from 5 μl through 400 μl in 1 μl increments.
Product Details
| Dispense Volume Range (μl/rev) | Flow Rate Range (mL/min) | Motor Speed Range |
|---|---|---|
Specifications
Motor Frame
Rotational: NEMA 17 (43mm)
Electrical (Rated Current)
Rotational: 2.0A
Operating Temperature Range
0°C to 50°C (32°F to 122°F)
Operating Pressure Range
0-100 psig (0-6.89 bar)2
Software
Download our controller software to install and configure the pump into your system.
FAQ's
Explore the answers to the top questions we receive about FENYX Variable Dispense Pump.
Regulatory Compliance
![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Ratings dependent on selected pump heads.
STFQ Micro Volume Adjustable Displacement Dispenser Pump
The STFQ is an advanced miniaturized fluidic system designed to control small volumes of fluid at the microscale level for a broad range of applications. It is currently available in standard drive configurations ranging from 250 µL through 1.25 mL in 1 µL increments.
Product Details
| Dispense Volume Range (μl/rev) | Flow Rate Range (mL/min) | Motor Speed Range |
|---|---|---|
Specifications
Motor Frame
Rotational: NEMA 23 (57mm)
Electrical (Rated Current)
Rotational: 2.3A
Operating Temperature Range
0°C to 50°C (32°F to 122°F)
Operating Pressure Range
0-60 psig (0-4.1 bar)2
Software
Download our controller software to install and configure the pump into your system.
FAQ's
Explore the answers to the top questions we receive about FENYX Variable Dispense Pump.
Regulatory Compliance
![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Pressure ratings dependent on selected pump heads.
Metering Pump For Metering and Bulk Fluid Transfer Applications
Engineered for metering applications, this pump integrates our distinct CeramPump® valveless pumping technology with the long-life performance of a brushless DC motor and integrated driver electronics. All that is needed is a simple 24V DC input power supply to deliver precision fluid control for process instrumentation.
Product Details
| Dispense Volume Range (mL/rev) | Flow Rate Range (mL/min) | Calibrated Flow Rate |
|---|---|---|
Specifications
Fixed Speed Motor and Variable Speed Motor
Motor Speed Range
Fixed Speed Motors: 2000 rpm
Variable Speed Motors: 0-1700 rpm
Rated Current
0.88A / 2.0A
Operating Temperature Range
20°C to 60°C (68°F to 140°F)
Software
Download our controller software to install and configure the pump into your system.
FAQ's
Explore the answers to the top questions we receive about FENYX Variable Dispense Pump.
Regulatory Compliance
![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Pressure ratings dependent on selected pump heads.
Duplex Pump Precision Ratio Mixing
The Duplex Pump consists of two valveless pump heads directly coupled to a single variable stepper motor drive. The displacement of each pump head is independently adjustable, and a variety of pump head sizes can be used in combinations to achieve dispensing ratios from 1:1 up to 100:1 from microliters to liters.
Product Details
| Dispense Volume Range (mL/rev) | Flow Rate Range (mL/min) | Motor Speed Range |
|---|---|---|
Specifications
Motor Frame
23″ Frame Stepper Motor
Electrical (Rated Current)
2.5A
Operating Temperature Range
0°C to 50°C (32°F to 122°F)
Software
Download our controller software to install and configure the pump into your system.
FAQ's
Explore the answers to the top questions we receive about FENYX Variable Dispense Pump.
Regulatory Compliance
![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Pressure ratings dependent on selected pump heads.
QB Laboratory Pump
Available Drive Modules: QB, QB4, QB5
Ideal for Mobile, Remote and Instrumentation
The QB pump offers the advantage of mechanical adjustment of stroke length, plus electrical control of stroke rate by voltage variation. Infinitely adjustable flow rates allow for precise fluid control, essential for dosing and metering.
- Modular design allows for easy adaptation to different requirements and quick replacement of components.
- Positive displacement – maintains consistent output flow even against discharge pressures up to 100 psi.
- Capable of self-priming up to 15 feet, making it flexible for various setups.
- Suitable for a wide range of applications due to its ability to manage different fluid viscosities and self-priming capability.
Note: When ordering, the pump drive and pump head will be priced separately
Product Details
| Pump Drive | Motor Type | Electrical (Rated Current) |
|---|---|---|
Specifications
QB, QB4, QB5 Motors
Dispense Volume Range
0-1.28 mL/rev2, 4
Flow Rate Range
0-2304 mL/min2, 4
Operating Pressure Range
0-100 psi (0-6.89 bar)2, 4
Motor Speed Range
0-1800 rpm3
Regulatory Compliance
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Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1,3 At 12V DC, the motor runs at 2600 RPM. With a Q Pump Head installed, the motor cannot exceed 1800 rpm (8V DC).
2 The dispense volume and flow rate vary based on the specific pump head and motor setup.
4 Pressure ratings dependent on selected pump heads.
QBLDC Laboratory Pump
Available Motor Speeds: 6, 20, 55, 150, 250, 400, 500, & 1550 rpm
Ideal for General Lab and Industrial Use
The QBLDC pump offers a range of features and benefits designed to ensure high accuracy in applications where precise fluid control is critical.
- Constructed with ceramic and stainless steel, offering broad fluid compatibility, and long-lasting performance.
- The fluid path is inert and resistant to corrosion, making it suitable for various chemicals.
- Flexible mounting options make it easy to install in different settings.
- The efficient motor design helps in reducing energy consumption.
- Offers interchangeable pump head and drive modules for various flow and material combinations.
Note: When ordering, the pump drive and head will be priced separately
Product Details
| Series Name | Motor Speed | Flow Rate Range (mL/min) |
|---|---|---|
Specifications
QBLDC6, QBLDC20, QBLDC55, QBLDC150, QBLDC250, QBLDC400, QBLDC500, QBLDC1550 Motors
Dispense Volume Range
0.003-1.28 mL/rev1, 2
Operating Pressure Range
0-100 psi (0-6.89 bar)1, 2
Motor Type
115 or 230V AC with 50/60 Hz
Electrical
0.5A
Regulatory Compliance
![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Pressure ratings dependent on selected pump heads.
QV Laboratory Pump
Ideal for Automated Process Control
The QV automated process control pump is a variable speed pump that offers exceptional accuracy and control. By eliminating valves, it minimizes downtime and the need for re-calibration. Its long term, drift free performance ensures millions of “trouble-free” cycles at 1% precision or better.
- Positive displacement maintains consistent output flow even against discharge pressures.
- Long-life, fan cooled, thermally protected gear motors ensure durability and reliable performance.
- Infinitely adjustable flow rates allow for precise fluid control, essential for dosing and metering.
- Modular design allows for easy adaption to different requirements and quick replacement of components.
Note: When ordering, the pump drive and head will be priced separately
Product Details
| Motor Speed Range | Dispense Volume Range | Flow Rate Range |
|---|---|---|
Specifications
Operating Pressure Range
0-100 psi (0-6.89 bar)1, 2
Motor Type
90V DC
120 or 240V AC with V300 Controller
Regulatory Compliance
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![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Pressure ratings dependent on selected pump heads.
RHB Laboratory Pump
Ideal for Environmental Sampling & Injection, Medical Devices, and Hydrogen Fuel Cell Research & Development
The RHB Pump is designed for optimal performance in mobile, remote, and instrumentation making it an excellent choice for researchers working on innovative technology.
- Durable construction and long-term drift free performance mean it can manage rigorous demands of continuous operation.
- Capable of self-priming up to 15 feet, makes it adaptable to various experimental setups.
- Mechanical adjustment of stroke length allows for fine-tuning of the pump’s output.
- Positive displacement – maintains consistent output flow even against discharge pressures up to 100 psi.
- Extended motor shaft compatible with HES/PRS rotational sensors.
Note: When ordering, the pump drive and head will be priced separately
Product Details
| Pump Head Module | Dispense Volume Range (mL/rev) | Flow Rate Range (mL/min) | Motor Speed Range |
|---|---|---|---|
Specifications
Operating Pressure Range
0-100 psi (0-6.89 bar)1, 2
Motor Type
12V DC
Electrical (Rated Current)
4.0A
Regulatory Compliance
![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Pressure ratings dependent on selected pump heads.
RHV Laboratory Pump
Ideal for General Lab, Industrial Use, Medical Device & OEM Manufacturing
The RHV variable speed pump enables instant flow adjustment during operation, ensuring drift-free performance. Controlled by a V300 Controller, it allows for easy flow rate adjustments. With no valves to clog or service, the pump’s only moving part is a reciprocating piston which enhances reliability.
- Can operate against discharge pressures up to 100 psi.
- Wide temperature range operates up to 100°C when using specific wetted materials.
- Suitable for a wide range of applications due to its ability to manage different fluid viscosities and temperatures.
- Instant flow adjustment and high-pressure capability allow for versatile use in various setups.
- Compact design is suitable for space constrained systems.
Note: When ordering, the pump drive and head will be priced separately
Product Details
| Pump Head Module | Dispense Volume Range (mL/rev) | Flow Rate Range (mL/min) | Motor Speed Range |
|---|---|---|---|
Specifications
Operating Pressure Range
0-100 psi (0-6.89 bar)1, 2
Motor Type
90V DC
120 or 240V AC with V300 Controller
Regulatory Compliance
![]()
![]()
Disclaimer
The performance of Fluid Metering pumps may vary based on specific application conditions and individual user setups. We recommend consulting with a qualified professional or our technical support team for assistance tailored to your specific needs.
1 The dispense volume and flow rate vary based on the specific pump head and motor setup.
2 Pressure ratings dependent on selected pump heads.
