Vacuum pump - Wikipedia

A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity....

Roots Blowers (aka Booster Pumps) - Vac Aero

Jul 12, 2016 ... The combination of Root blower and primary pump provides roughly a seven-fold increase in pumping speed and a ten-fold increase in pressure, in comparison to a primary pump alone. Introduction. When used in a high or ultra-high vacuum system, the Roots blower is located between the primary pump ......

vacuum pumps - Home | Pedro Gil

En Pedro Gil disponemos de los mejores productos soplantes del mercado desde 1987. ¡Entra en ... Company specialist in pressure and vacuum solutions since 1897 ... Pedro Gil has reinforced its commitment to the range of dry screw vacuum pumps, new machinery, which in spite of its high initial cost, is highlighted....

Paper Fan Pump - Alibaba

Alibaba offers 6655 paper fan pump products. About 46% of these are laser engraving machines, 46% are laser cutting machines, and 2% are pumps. A wide variety of paper fan pump options are available to you, such as single-stage pump, multistage pump, and gear pump....

Leybold Vacuum, Roots Pumps, RUVAC WA, WAU, 151, 251, 501 ...

The RUVAC WAU can be switched on at atmospheric pressure at the same time as a backing pump. As a result, the pumping speed of the pump combination is increased even at high intake pressures. 1.1.4 Lubricants. The standard RUVAC WA/WAU pumps are ready for operation with mineral oil. We recommend the use  ......

Roots Vacuum Pumps | Products | Leybold

Roots vacuum pumps RUVAC, which are also called Roots blowers, are rotary plunger type pumps where two symmetrically shaped impellors rotate in opposite directions inside the pump housing. Roots pumps are used where great volumes have to be pumped. In combination with backing pumps, which compress against  ......