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Its headquarters are in Burgess Hill, UK, and has been part of the Atlas Copco Group since 2014. [12] [13] [1] Edwards holds 1,700 patents, including for dry (oil-free) vacuum pumps, and produces equipment used for manufacturing semiconductors, scientific research, freeze drying and other industries.
Atlas Copco (Copco from Compagnie Pneumatique Commerciale) is a Swedish multinational industrial company that was founded in 1873. [7] It manufactures industrial tools and equipment. The Atlas Copco Group is a global industrial group of companies headquartered in Nacka , Sweden .
A partial vacuum may be generated by increasing the volume of a container. To continue evacuating a chamber indefinitely without requiring infinite growth, a compartment of the vacuum can be repeatedly closed off, exhausted, and expanded again. This is the principle behind a positive displacement pump, for example the manual water pump. Inside ...
A patented vacuum follower plate was designed to facilitate the material feed from pails while reducing material waste. In the area of process automation, Scheugenpflug provides all systems along the whole production chain, ranging from pretreatment, to dispensing and potting units to aftertreatment, including control and handling systems for ...
A scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. [1] It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll-type supercharger ) and as a vacuum pump .
Single-stage vacuum pumps typically produce vacuum to 35 torr (mm Hg) or 47 millibars (4.7 kPa), and two-stage pumps can produce vacuum to 25 torr, assuming air is being pumped and the ring-liquid is water at 15 °C (59 °F) or less. Dry air and 15 °C sealant-water temperature is the standard performance basis, which most manufacturers use for ...
Most general pumps can increase as well as decrease the pressure of a gas; however, this category contains pumps that are usually exclusively used to decrease pressure. Wikimedia Commons has media related to Vacuum pumps .
Vacuum truck. A vacuum truck, vacuum tanker, vactor truck, vactor, vac-con truck, vac-con is a tank truck that has a pump and a tank. The pump is designed to pneumatically suck liquids, sludges, slurries, or the like from a location (often underground) into the tank of the truck. The objective is to enable transport of the liquid material via ...