backing pump

[′bak·iŋ ‚pəmp]

(mechanical engineering)

A vacuum pump, in a vacuum system using two pumps in tandem, which works directly to the atmosphere and reduces the pressure to an intermediate value, usually between 100 and 0.1 pascals. Also known as fore pump.

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With the air-cooled, oil-free SCROLLVAC plus, Leybold offers an uncomplicated, reliable backing pump. Its properties predestine it for a wide range of demanding applications, such as laboratory vacuum furnaces.

Perfect portfolio? Leybold supplies a coordinated product portfolio for the metalworking industry

* Capacities range from 47 cfm (80 m3/h) and up with backing pump options and high vacuum boosters

Dry vacuum pumps

It also has an integrated "intermittent operation" function that switches on a backing pump only when the backing pressure is no longer sufficient.

Turbopump features compact design

The HiPace 300 H also has an integrated "intermittent operation" function which switches on a backing pump only when the backing pressure is no longer sufficient.

Pfeiffer Vacuum launches powerful turbopump

ULVAC released the HELIOT 900 series leak detectors in June 2014 with backing pump up to 250/300 (50 Hz/60 Hz) L/min).

ULVAC Launches New Addition to the HELIOT 900 Series Leak Detector Family

For example, in vacuum packaging situations, production and packing speeds will decline due to reduced air flow through the pump, with poorer end pressure and interaction between the backing pump and booster arrangements that are so often used in such applications.

Don't cut corners! Mark sumnall of busch (UK) discusses how to avoid the pitfalls of cutting corners with service and gives his advice on how to achieve efficient and effective maintenance programmes

The overall long-term maintenance on the system was greatly reduced versus the mass spectrometer vacuum system because the Falcon Leak Test System does not have a vacuum chamber, a chamber vacuum pump, a mass spectrometer instrument, or a backing pump for the mass spectrometer.

Stopping leaks: helium sensor system proves critical during brazing operation of manifolds

The SSTC utilizes an oilless diaphragm roughing or backing pump and an oilless turbomolecular high vacuum pump.

A space simulation chamber with thermal ramping

Their functional and design features simplify daily use of the backing pump. For example, the hermetic sealing of the rotating parts from the pump chamber reduces the risk of contamination.

You're so vane: Leybold has introduced a new rotary vane pump to the market

Due to the unique oil-free hybrid bearing P design of the new turbo pumps featured in these systems, and by using different dry compressing backing pump combinations, hydrocarbon free pump system operation is guaranteed.

Vacuum pump system comes fully assembled

ULVAC launches the ceramic ball bearing turbo molecular pump, UTM300B, in addition to the existing line-up, small size pivot bearing type, medium and large size magnetic levitation turbo molecular pumps, to meet to the requirements such as free mounting orientation, more compact design, smaller size backing pump, etc in the trend of diversified applications of turbo molecular pumps.