Most vacuum pump hardware is made from stainless steel or aluminum because of those materials’ strength and gas non-permeability. Read More…
Gardner Denver provides vacuum pumps products such as rotary vane vacuum pumps, oilless vacuum pumps, linear and rotary piston pumps for a number of markets and applications. Provides excellent customer service to compliment their line of high-quality products.
MDC Vacuum Products manufactures vacuum components, including butterfly valves, vacuum gauges, and vacuum pumps. Our cryogenic sorption vacuum pumps are an economical roughing source, attaining up to 1x10-3 Torr vacuum level. Other features of our pumps include: clean vibration-free operation, heat regeneration, a positive pressure safety vent, no moving parts, and multiple pump capacity.
Here at US Vacuum Pumps, our broad range of industrial vacuum pumps cannot be topped. It is our dedication to our craft that makes us your premier choice for all of your vacuum pump needs. We will work with you in order to come up with a product that will fit your needs perfectly. All products are available for immediate shipment. To learn more, visit our website or send our qualified staff an...
We are a manufacturer of vacuum pumps, liquid ring vacuum pumps and rotary vane vacuum pumps. We provide custom-engineered, reliable vacuum pumps to meet all your needs. We also offer FloGard® RCP for monitoring the wear and tear on your vacuum pump to foresee problems before they happen.
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Vacuum Pump Systems - Vac-Tech, Inc.A perfect vacuum is a space in which no matter is present. No perfect vacuum exists in reality, and no machinery can create one. But industrial vacuum pumps can achieve varying degrees of artificial evacuation for uses in many industries and applications.
Low vacuums, which are partial vacuums with relatively high levels of residual atmosphere, can be created by small vacuum pumps for light industrial tasks. Many light bulbs, for example, must be partially evacuated or filled with an inert gas in order to function.
For many other applications, though, higher degrees of evacuation are necessary. In laboratory applications, high-tech electronics fabrication and some contexts in the healthcare industry, vacuums with very low levels of atmospheric pressure can be necessary. High and ultra high vacuums are necessary for creating these kinds of vacuums, and in some cases, a series of vacuum pumps may be connected to the same inlet line.
There are three main categories of vacuum pumps: positive displacement, momentum transfer and entrapment pumps.
Positive displacement pumps expand one part of a vacuum chamber while collapsing another; this compresses the gas inside and causes it to be evacuated. Momentum transfer pumps facilitate repeated collisions between gas molecules and rotors or steam jets that impart momentum and direct the molecules out of the chamber.
Entrapment pumps use condensation created by rapid heating and cooling to compress and trap gas molecules in a solid or absorbed state. Each pump variety can be used in conjunction with another to create vacuums of varying pressure levels. For example, a positive displacement pump, an absorption pump and a momentum transfer pump could be used to bring pressure down from 760 Torr to as low as 10 Torr (1 Torr is equal to the fluid pressure exerted by 1 mm of mercury at sea level).
Within those three vacuum pump categories, all vacuum pumps can be categorized as either wet or dry. If the vacuum uses oil for lubrication or a ring of liquid sealant, that system is considered to be a wet system. Dry vacuum pumps are systems that make no use of any liquids at any time.
