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Thomas's suite of cutting-edge, versatile technologies is tailored to empower you, offering seamless integration and user-friendly experiences. Discover how these technologies can transform your challenges into opportunities.

Pump and Compressor Technologies: Comparison, Performance and Applications

Compare piston, diaphragm, rotary vane and peristaltic pump technologies. Clear performance data on pressure, vacuum and flow rates.

Piston Pumps

Piston technology has remained one of the most popular and most widely used pump and compressor technologies in the world. Discover the highest-quality WOB-L® and articulating piston technologies designed for a broad range of demanding pressure and vacuum applications.

Rotary Vane Pumps

Rotary vane vacuum pumps and compressors use centrifugal force to compress the volume of the medium in order to increase pressure or create vacuum.

Diaphragm Pumps

Diaphragm pumps operate by reducing the volume of the medium through a flexible membrane driven by a crank. These positive displacement pumps can pump gas and liquid.

Linear Diaphragm Pumps

Linear diaphragm and vibrating armature pumps utilize electromagnetic forces for the power transmission on a diaphragm or piston.

Peristaltic Pumps

Peristaltic pumps are a type of positive displacement pump that move the liquid through a tube using a series of rollers that squeeze it against the pump housing.

Brushless DC Pump Technology

Thomas offers the broadest range of pumps with Brushless DC (BLDC) motor technology.

Technology

Suitable Media

Max Pressure

Max Vacuum

Max Flow

Notes

Piston (WOB-L®, Articulated)

Gas

Up to 12 bar / 175 psi

Up to -990 mbar / 29.2 inHg

Up to 250 L/min / 9 cfm

Oil-less, highest pressure and vacuum, moderate pulsation

Diaphragm

Gas, Liquid (separate designs)

Gas: Up to 3 bar / 44 psi

Gas: Up to -990 mbar / 29.2 inHg

Gas: Up to 90 L/min

Oil-less, leak-tight, chemically resistant options available, good balance of pressure and vacuum

Liquid: Up to 4 bar / 58 psi

Liquid: Up to -700 mbar / 20.7 inHg

Liquid: Up to 1.8 L/min

Rotary Vane

Gas

Up to 1.4 bar / 20 psi

Up to -930 mbar / 27.5 inHg

Up to 200 L/min / 7.0 cfm

Oil-less, smooth, low pulsation, high flow-to-size ratio

Linear Diaphragm

Gas

Up to 0.7 bar / 10 psi

Up to -550 mbar / 16.2 inHg

Up to 625 L/min / 22.1 cfm

Oil-less, quiet, long life, low pressure, high flow

Peristaltic

Liquid

Up to 3 bar / 45 psi

Up to -950 mbar / 28 inHg

Up to 3 L/min / 0.79 gpm

Oil-less, only tubing contacts fluid; ideal for aggressive or viscous fluids