Thomas vacuum pumps and compressors are used in pharmaceutical and medical equipment, automobiles, business machines, environmental systems, and food processing equipment all over the world. Although their customers come from a variety of industries with varying applications, all share a common goal — a solution that enhances the performance of their product or application while still delivering the best value.Some examples of laboratory applications of Thomas pumps include aspiration, cell harvesting, concentrators, desiccation, filtration, pipettes, rotary evaporators, solvent degassing, tissue culture, vacuum concentrating and vacuum ovens.
Some examples of medical applications for Thomas pumps include aspirators, autoclaves, dental carts, dialysis machines, nebulizers and respirators.
Other applications for Thomas pumps include coffee making machines, drinks dispensers, ice cream dispensers, de-soldering, evacuation, fuel cells, impregnation, inkjet printing, photo copiers, photo processing, plasma cutters, spray tanning, water and sewage aeration, tooth whitening and vacuum holding.
Thomas uses a wide range of technologies for vacuum pumps and compressors which allows their products to be used in so many different areas. The main technologies are outlined below:
Vacuum pumps designed with WOB-L piston technology reduce the volume in the pump chamber using a fixed crank operated piston inside the chamber
Compact, reciprocating design for vacuum or pressure
Oil-less (dry), non-lube piston and cylinder
Lightweight die cast aluminum components or highly wear-resistant plastic
Single stage and multistage models
Balanced for low vibration operation
All wetted aluminum parts treated for corrosion protection from moisture
Long life, high performance piston seal
Permanently lubricated bearings
Flow rates up to 6.6 cfm (187 l/min), pressure to 160 psi (11 bar),
vacuum down to 27.7 in.Hg (–940 mbar rel)
Diaphragm pumps operate by reducing the volume within the pumping chamber with a flexible membrane driven by a crank.
Suitable for pressure and vacuum or combined
Gas tightness to the outside
Lightweight die cast aluminum components or highly wear-resistant plasticDurable plastic or corrosion resistant coated aluminum
Balanced for low vibration
Low noise level
Liquid media models available – suitable for aggressive media applications
Permanently lubricated bearings
Flow rates up to 91 l/min (3.2 cfm), end vacuum 29.2 in.Hg (10 mbar
abs.), pressure 2.8 bar (41 psi)
Articulating piston pumps operate by reducing the volume in the pumping chamber using a sealed piston inside thae chamber.
Suitable as compressor or vacuum pump
High capacity, permanently lubricated and sealed bearings
PTFE or carbon piston rings and skirts
Long, service-free life
Field service capability
High strength stainless steel valves
Flow rates up to 9.8 cfm (278 l/min), pressure up to 175 psi (12.1 bar), vacuum down to 27.5 in.Hg (-930 mbar)
Rotary vane vacuum pumps and compressors work by compressing the volume within the pumping chamber to increase pressure and create vacuum.
Suitable for pressure and/or vacuum
Wetted parts out of gray cast iron, carbon, stainless steel and plastic
Self-lubricating and self-adjusting vanes
Nearly pulsation free
DC models with reversible operation
Flow rates up to 21 cfm (595 l/min), pressure up to 14.5 psi (1.0 bar), vacuum up to 26 in.Hg (-880 mbar rel.)
Linear pumps operate by reducing volume within the pumping chamber by the action of a shuttle upon a membrane or piston.
Very long life
Low power consumption
Fluid capability with smaller models
Flow rates up to 12.7 cfm (360 l/min), pressure up to 10 psi (0.7 bar), max vacuum 16.2 in.Hg (-550 mbar )