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The ReaXus reciprocating pump product line provides broad pumping specifications to meet your application needs. Maintenance is minimal and the quality is high, which over the life of the product, saves you money. The availability of many options allows you to select the exact pump you need to optimize the results of your application. All ReaXus pumps are designed with unique automatic back flush ports that wash the seal and increase the life of your pump.

Single-Piston Pumps

Pump Class
 Material Options Flow Range (mL/min) Flow Accuracy Pressure Limit (psi) Stroke Volume (µL)
 Temp Jacket
 Pump Mode Dimensions/ Weight
M1 Class Stainless Steel
PEEK		 0.00 – 10.00
 5% 2,500 25.1 No Constant Flow 5.6”H x 3”W x 10.6”D
(14.1 x 7.6 x 26.7 cm)
6.1 lbs. (2.7 kg)
Stainless Steel 0.0 – 40.0 5% 500
 100.5
Stainless Steel 0.0 – 100.0 5% 250 226.2
MX Class Stainless Steel 0.00 – 10.00 2% 5,000 25.1 No Constant Flow 6.4”H x 7”W x 16”D
(16.1 x 17.8 x 40.6 cm)
14.2 lbs. (6.4 kg)
LS Class Stainless Steel
PEEK		 0.000 – 5.000 2% 6,000 SS
5,000 PEEK 		25.1 No Constant Flow 6.4”H x 7”W x 16”D
(16.1 x 17.8 x 40.6 cm)
15.3 lbs. (6.9 kg)
0.00 – 10.00 2% 6,000  SS
5,000 PEEK 		50.3
0.0 – 40.0 2% 1,500 201.1

Dual-Piston Pumps

Pump Class Material Options Flow Range (mL/min) Flow Accuracy Pressure Limit (psi) Stroke Volume (µL)
 Temp Jacket
 Pump Mode Dimensions/ Weight
LD Class Stainless Steel
PEEK
 0.000–12.000 2% 6,000 SS
5,000 PEEK 		30.0 NO Constant Flow 6.4”H x 10”W x 17.5”D
(16.1 x 25.1 x 44.3 cm)
21.3 lbs. (9.7 kg)
Stainless Steel
PEEK
Hastelloy 		0.00 – 36.00 2% 6,000 SS, Hastelloy
5,000 PEEK 		62.8 NO (SS, PEEK)
YES (Hastelloy)
Stainless Steel
PEEK
Hastelloy 		0.0 – 100.0 2% 1,500 251.4 NO (SS,  PEEK)
YES (Hastelloy)
PR Class Stainless Steel
PEEK
Hastelloy 		0.0 – 100.0 3% 4,000 251.4 NO (SS, PEEK)
YES (Hastelloy)		 Constant Flow 6.4”H x 10”W x 17.5”D
(16.1 x 25.1 x 44.3 cm)
24.2 lbs. (11.0 kg)
Stainless Steel
PEEK
Hastelloy 		0.0 – 300.0 3% 1,000 565.6 NO (SS, PEEK)
YES (Hastelloy)
CP Class Stainless Steel 0.000–12.000 2% 18,000 31.4 NO Constant Pressure 6.4”H x 10”W x 17.5”D
(16.1 x 25.1 x 44.3 cm)
21.3 lbs. (9.7 kg)
Stainless Steel
Hastelloy 		0.00 – 24.00 2% 10,000 62.8 NO (SS)
YES (Hastelloy)
Stainless Steel 0.0 – 100.0 2% 4,000 251.0 NO
HF Series Stainless Steel 0.0 – 300.0 5% 10,000 452.4 NO Constant Flow/ Constant Pressure 8.9”H x 13.9”W x 22.1”D
(22.6 x 35.3 x 56.1 cm)
49.2 lbs. (22.3 kg)

Supercritical Pumps

Pump Class
 Material Options Flow Range (mL/min) Flow Accuracy Pressure Limit (psi) Stroke Volume (µL)
 Temp Jacket
 Pump Mode Dimensions/ Weight
SC Class Stainless Steel,
Aluminum head		 0.01 to 24.00 5% 10,000 62.8 Peltier Cooling Constant Flow/
Constant Pressure
(select at order)		 5.75" H x 11.125" W x 21.6" D (15 x 28 x 54.9 cm)
24.0 lbs (10.8Kg)
A reciprocating pump is an advanced positive displacement system that uses precision engineering to generate consistent, high-pressure fluid movement. These pumps use automated piston motion within a sealed cylinder to create controlled fluid displacement. In laboratory and industrial settings, reciprocating pumps are essential for applications requiring precise flow rates and reliable high-pressure operation. Teledyne LABS' ReaXus® line exemplifies how modern reciprocating pump technology can deliver both accuracy and automation in critical fluid handling processes.

T​​he Science Behind Reciprocating Pump Operation

Reciprocating pump systems operate through an automated precision cycle that ensures fluid delivery. As the piston retracts, it creates a carefully controlled vacuum that draws fluid into the chamber through the inlet valve. When the piston advances, it pressurizes this fluid, automatically closing the inlet valve and opening the discharge valve for precise fluid delivery. This engineered reciprocating action creates the reliable, pulsation-free flow that laboratory and industrial processes demand. Teledyne LABS' control systems maintain this precision through thousands of cycles, ensuring consistent performance without manual intervention.

Key B​​enefits of Advanced Reciprocating Pump Systems

Modern reciprocating pumps deliver critical advantages for today's demanding laboratory and industrial applications. Teledyne LABS' ReaXus® line exemplifies these benefits through advanced engineering and automation:

  • Superior pressure control: Generates consistent high pressure while maintaining precise control even during extended operation, enabling accurate fluid delivery across varying conditions.

  • Automated flow rate management: Provides programmable piston speed regulation that delivers precise, repeatable fluid transfer while eliminating manual flow adjustments and related errors.

  • Versatile fluid handling: Processes both low- and high-viscosity fluids while maintaining accuracy with solutions containing suspended particles, supporting a wide range of laboratory applications.

​These advanced capabilities make reciprocating pumps essential for modern laboratories, where precision and automation are paramount. Teledyne LABS' ReaXus® line specifically addresses these needs while maintaining the reliability that demanding applications require.

Critical Applications for Modern Reciproca​​ting Pumps

High-performance reciprocating pumps are crucial across multiple industries where precision fluid handling is essential. Teledyne LABS' range of reciprocating pump solutions addresses diverse application needs while maintaining consistent accuracy and performance:

  • Pharmaceutical research: Enables precise chemical dosing and automated sample preparation, supporting critical drug development processes and quality control testing.

  • Environmental testing: Powers accurate water analysis and sample processing systems, ensuring reliable environmental monitoring and regulatory compliance.

  • Petrochemical processing: Delivers precise chemical injection and fluid transfer under demanding conditions, supporting both routine operations and specialized applications.

  • Chemical manufacturing: Provides automated fluid transfer and precise reagent dispensing, streamlining production processes while maintaining quality control.

​These applications demonstrate how modern reciprocating pumps have become indispensable in laboratory settings where precision and reliability are essential. Teledyne' LABS' ReaXus® line delivers the automation, accuracy, and dependability that these demanding applications require.​
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Freq​​uently asked questions

What applications are r​​​eciprocating pumps best suited for?

As a specialized type of positive displacement pump, reciprocating pumps excel in applications requiring precise fluid control under high pressure. Their unique reciprocating motion and delivery valve system make them ideal for laboratory automation, precise chemical metering, and analytical processes. These pumps are particularly valuable in pharmaceutical research, environmental testing, and chemical manufacturing, where accurate fluid delivery is crucial.

How do reciprocating p​​umps differ from centrifugal pumps?

The key distinction lies in their operating mechanisms: reciprocating pumps use a precision-engineered connecting rod and piston system to create pressure differentials, while centrifugal pumps rely on rotating impellers for fluid movement. This fundamental difference means reciprocating pumps excel at delivering precise, high-pressure flow through their inlet and outlet valve system, making them ideal for metering applications. Centrifugal pumps, however, are better suited for continuous, high-volume flow at lower pressures.

What factors s​hould I consider when selecting a reciprocating pump?

When selecting a reciprocating pump, evaluate your application's flow rate and pressure requirements, fluid properties, and system integration needs. Consider factors like chemical compatibility, maintenance accessibility, and precision requirements. For guidance on choosing the right positive displacement pump for your laboratory, contact the Teledyne LABS technical support team.​