Laboratory Vacuum & Pressure Technology

Thomas Laboratory Vacuum Pumps & Compressors

Compact oil-free vacuum pumps and air compressors for laboratory equipment, analytical instruments, gas sampling, filtration, aspiration, scientific instruments and OEM laboratory systems.

CompreVac supplies Thomas pump technologies for laboratory and life-science equipment requiring dependable vacuum, pressure, clean gas handling, compact dimensions and low operating noise.

Thomas laboratory vacuum pump application and laboratory equipment
Oil-Free Options Clean Laboratory Air & Vacuum
Compact Pumps For Instruments & Equipment
Low Noise Options Laboratory Environments
Vacuum & Pressure Multiple Pump Technologies
Laboratory Pump Applications

Vacuum and Pressure Pumps for Laboratory Equipment

Laboratory equipment frequently requires a compact source of vacuum, pressure or controlled gas flow. The pump may be installed inside an analytical instrument, connected directly to laboratory equipment or integrated into a larger OEM scientific system.

Thomas offers multiple oil-free pump technologies suitable for laboratory applications where clean gas handling, compact dimensions, low noise, repeatable performance and long operating life are important.

CompreVac can help match Thomas diaphragm, linear diaphragm, WOB-L piston, articulated piston or rotary vane technology to the required laboratory vacuum level, pressure, flow and duty cycle.

Thomas compact laboratory vacuum pump and compressor
Laboratory Applications

Where Are Thomas Laboratory Pumps Used?

Thomas compact vacuum pumps and compressors can support a wide range of laboratory, scientific and analytical equipment requiring controlled vacuum, pressure or gas flow.

Laboratory Vacuum

Compact vacuum generation for bench-top laboratory equipment, instruments and integrated scientific systems.

Vacuum Filtration

Vacuum generation for filtration equipment and laboratory processes requiring controlled pressure differential.

Gas Sampling

Air and gas movement for analytical instruments, environmental monitors and sampling equipment.

Analytical Instruments

Compact vacuum and pressure sources for measuring, testing and analytical equipment.

Aspiration Systems

Vacuum generation for laboratory aspiration and fluid-handling equipment.

Life Science Equipment

Oil-free vacuum and pressure technology for suitable biotechnology, research and life-science instruments.

Environmental Monitoring

Reliable gas sampling and controlled airflow for monitoring and measurement equipment.

Scientific OEM Equipment

Pump integration into laboratory instruments manufactured for research, testing and analytical applications.

Sample Preparation

Vacuum or pressure generation for suitable laboratory sample preparation and handling equipment.

Thomas Laboratory Pump Technologies

Oil-Free Vacuum Pumps & Compressors for Laboratory Equipment

Different laboratory applications require different combinations of vacuum, pressure, flow, noise, vibration and package size. Thomas offers several pump technologies to match these requirements.

Thomas diaphragm laboratory vacuum pump and compressor
Laboratory Vacuum & Pressure

Thomas Diaphragm Pumps

Oil-free diaphragm technology is well suited to compact laboratory and analytical equipment requiring clean gas handling, dependable vacuum or pressure and a sealed gas path.

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Thomas linear diaphragm quiet laboratory air pump
Quiet Oil-Free Technology

Thomas Linear Diaphragm Pumps

Linear diaphragm technology is particularly useful where laboratory equipment requires oil-free operation, low noise, low vibration and efficient continuous air movement.

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Thomas WOB-L piston laboratory vacuum pump and compressor
Higher Flow & Pressure

Thomas WOB-L® Piston Pumps

Thomas WOB-L piston technology provides strong pressure and flow relative to package size for laboratory equipment requiring greater pneumatic performance.

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Thomas articulated piston laboratory pump and compressor
Compact Pressure & Vacuum

Thomas Articulated Piston Pumps

Articulated piston technology provides robust vacuum and pressure performance where laboratory or scientific equipment requires a compact integrated pump.

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Thomas rotary vane laboratory vacuum pump and compressor
Smooth High-Flow Vacuum

Thomas Rotary Vane Pumps

Rotary vane technology provides relatively high flow with low pulsation and vibration, making it useful for suitable laboratory gas handling and sampling applications.

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Laboratory Pump Requirements

What Matters in a Laboratory Vacuum Pump?

Laboratory pump selection is rarely based on vacuum level alone. Noise, contamination, flow, duty cycle and package size can be equally important.

Oil-Free Operation

Oil-free pump technologies can reduce the risk of lubricant entering the pumped gas stream or laboratory environment.

Low Noise

Acoustic performance can be important where pumps operate directly beside users or inside bench-top instruments.

Low Vibration

Smooth pump operation can be important around measurement equipment and sensitive analytical instruments.

Compact Dimensions

Laboratory equipment often provides limited space for integrated vacuum and pressure components.

Correct Vacuum Level

The pump must maintain the required operating vacuum at the actual process flow rather than merely achieve a strong ultimate vacuum.

Continuous Reliability

Pump technology should be matched to the expected duty cycle, operating hours and required equipment life.

Thomas Diaphragm Pump Capability

Laboratory Vacuum, Pressure & Flow Range

Thomas diaphragm technologies cover a broad range of compact vacuum and pressure applications. Final pump selection depends on the specific model and operating point.

530 ml/min Low-Flow Capability

Compact flow capability for small analytical and laboratory systems.

90 L/min Higher Flow Capability

Larger diaphragm platforms can support substantially higher gas flow.

3 bar Pressure Capability

Selected diaphragm technologies can provide pressure up to approximately 43.5 PSI.

-990 mbar Vacuum Capability

Selected models can achieve vacuum approaching approximately 29.2 inHg.

Oil-Free Clean Gas Handling

Multiple Thomas technologies operate without lubricating oil in the pumped gas path.

OEM Ready Instrument Integration

Compact pumps designed for integration into laboratory and analytical equipment.

Laboratory Pump Selection

How Do You Select a Laboratory Vacuum Pump?

The correct laboratory pump should be selected around the actual operating point and the requirements of the complete instrument or process.

1
Required Vacuum Define the normal operating vacuum and the deepest vacuum the system must reach.
2
Required Flow Determine the gas flow needed while the pump is operating at the required vacuum.
3
Pressure Requirement Some laboratory systems require pressure generation rather than vacuum, or need both functions.
4
Duty Cycle Identify whether the pump operates occasionally, repeatedly or continuously.
5
Noise & Vibration Consider whether the pump will operate near laboratory staff or sensitive instruments.
6
Gas Compatibility Confirm that pump materials are appropriate for the gas or vapour being handled.
7
Package Size Confirm available installation space inside or beside the laboratory equipment.
8
Electrical Requirements Specify voltage, frequency, motor requirements and any electronic control needs.
Thomas Laboratory Pump Advantages

Why Thomas Pumps Are Used in Laboratory Equipment

The broad range of Thomas pump technologies allows laboratory equipment designers to balance vacuum, pressure, flow, size, noise and operating life.

Compact Pump Platforms

High performance relative to physical size supports integration into bench-top and OEM laboratory equipment.

Oil-Free Technologies

Multiple Thomas product families provide clean pressure and vacuum without lubricating oil in the pumped gas stream.

Low Noise Options

Linear diaphragm technologies can be particularly useful for laboratory equipment where acoustic performance matters.

Wide Performance Range

Different pump technologies cover low-flow analytical duties through higher-flow laboratory and scientific equipment.

Vacuum & Pressure

Thomas product families support both vacuum generation and positive-pressure applications.

Application Support

CompreVac can help match pump technology to required vacuum, pressure, flow, duty cycle, noise and physical constraints.

Frequently Asked Questions

Laboratory Vacuum Pump FAQs

Common questions about Thomas laboratory vacuum pumps, compressors and pump selection for scientific and analytical equipment.

What type of vacuum pump is best for laboratory use?

The best laboratory vacuum pump depends on required vacuum level, flow, gas compatibility, operating hours, noise and contamination requirements. Oil-free diaphragm pumps are common in many laboratory applications, but piston, linear diaphragm and rotary vane technologies may be more appropriate for other duties.

Does Thomas make oil-free laboratory vacuum pumps?

Yes. Thomas offers multiple oil-free pump technologies including diaphragm, linear diaphragm and selected piston designs for clean vacuum and pressure applications.

What vacuum can a Thomas diaphragm pump achieve?

The Thomas diaphragm portfolio includes models capable of vacuum levels approaching approximately -990 mbar, or about 29.2 inHg. Actual performance depends on the specific pump and operating flow.

Can Thomas pumps be used for laboratory filtration?

Thomas vacuum pumps can be suitable for laboratory filtration equipment where the selected pump provides the required vacuum and flow and its materials are compatible with the gases or vapours being handled.

Can Thomas pumps be used for gas sampling?

Yes. Compact diaphragm and rotary vane technologies can be used in suitable gas-sampling and analytical applications where controlled airflow or vacuum is required.

Which Thomas pump is best for a quiet laboratory application?

Linear diaphragm pumps are particularly relevant where low noise and low vibration are important. Final selection should still consider required flow, pressure or vacuum and duty cycle.

What is an oil-free laboratory vacuum pump?

An oil-free laboratory vacuum pump produces vacuum without using lubricating oil inside the pumped gas path. This can reduce the risk of oil contamination and simplifies maintenance for many laboratory applications.

Can a Thomas pump provide both vacuum and pressure?

Thomas offers pump technologies and configurations for vacuum and positive-pressure applications. The correct configuration depends on the required operating point and equipment design.

Are Thomas pumps suitable for analytical instruments?

Thomas compact pumps are widely suited to OEM-style equipment where vacuum, pressure or gas flow must be integrated into a small instrument package. Pump selection should be based on the individual analytical application.

How do I size a laboratory vacuum pump?

Start with the required operating vacuum and gas flow, then consider duty cycle, chamber or system volume, evacuation time, gas compatibility, noise, available space and electrical requirements.

Can CompreVac help replace an existing laboratory vacuum pump?

Yes. Provide CompreVac with the existing pump model, required vacuum or pressure, flow, voltage, dimensions and application information. We can help identify an appropriate Thomas pump or replacement technology.

Can CompreVac help select a Thomas pump for new laboratory equipment?

Yes. CompreVac can assist with pump selection based on vacuum, pressure, flow, duty cycle, motor voltage, noise, physical dimensions and the requirements of the laboratory or analytical equipment.

Laboratory Vacuum Pump Sales & Application Support

Need a Vacuum Pump for Laboratory Equipment?

Send CompreVac the required vacuum, pressure, flow, duty cycle, voltage and application details. We can help identify the appropriate Thomas diaphragm, piston, linear diaphragm or rotary vane technology for your laboratory or analytical system.

Thomas OEM Pumps and Compressors for Liquid and Gas OEM Systems

THOMAS is a leading manufacturer of systems, compressors, vacuum, and liquid pumps for Original Equipment Manufacturers (OEMs) in the medical, laboratory, environmental and industrial sector.With its experienced Engineering, Technical, and Operations staff and capabilities, Thomas designs and manufactures customized pressure and vacuum solutions that meet the precise needs of its customers. Backed by over 60 years of engineering excellence and innovation, and a global manufacturing network, Thomas stands out as the reliable choice for OEMs worldwide.
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thomas pumps and compressors
thomas peristaltic liquid pumps
Articulated Piston Pumps and Compressors

Peristaltic pumps are your ally when you need to dose or dispense the fluid with high accuracy without cross-contamination. They can be used to pump a variety of liquids such as water, blood, sterile or aggressive fluids or suspended solid. More information

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Linear Diaphragm Pumps and Compressors

Thomas provides linear diaphragm pumps and compressors to OEMs for a broad range of medical, environmental, and industrial applications. Thomas oil-free linear pumps and compressors are the best choice for pressure and/or vacuum applications that require oil and contaminant-free air, compact designs, high efficiency, low power consumption, and very low noise levels.
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WOB-L® Piston Pumps and Compressors

Thomas piston pumps utilize proprietary WOB-L® pump technology from Gardner Denver. WOB-L® piston pumps can provide higher pressure and flow capabilities than many other pump technologies, in a much smaller package. They cover a wide range of applications due to the breadth of product platforms and performance capability. More information

thomas Rotary Vane Pumps and Compressors
Rotary Vane Pumps
and Compressors

Rotary vane pumps are often the first choice for vacuum handling and gas sampling applications that require a high flow capability relative to the size of the pump.

Rotary vane technology features low pulsation and low vibration, which enable consistent flow rates with minimal vibration. These traits make these units ideal for Medical, Lab Life Science devices, life-saving equipment, and Industrial, Environmental, and Food & Beverage markets.
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thomas Diaphragm Pumps and Air Compressors
Diaphragm Pumps and Air Compressors

Thomas’ diaphragm vacuum pumps and compressors are characterized by an excellent size to performance ratio. A leak-tight air path and stable performance over a lifetime complete the picture.

The overall portfolio includes a number of product lines. Flow rates range from 530 ml/min (0.018 cfm) to 90 l/min (3.2 cfm). The pneumatic performance covers pressures up to 3 bar (43.5 psi) and vacuum levels up to -990 mbar (29.2 in.Hg). Various motor options address lifetime requirements.More information