From atmospheric pressure to ultimate vacuum

Paul Boughton

BOC Edwards is launching a new range of single-stage rotary vane pumps. The EV range offers reliable high-speed, low-pressure performance suitable for a wide range of applications including furnaces, vacuum drying, thermoforming, food processing and packaging.

Smaller pumps in the range, such as the EV20 and EV40, are also suitable for use in scientific applications. All models benefit from an economical combination of proven, low-maintenance rotary vane technology and environmentally-aware design.

Unlike some competitive products, the EV range is said to provide continuous operation from atmosphere to ultimate vacuum. This, coupled with good water vapour tolerance of up to 6kg/h at 10mbar, ensures a consistent, un-interrupted process.

Other key benefits include low vibration and noise even on the largest EV630 pump (less than 83 dB(A)) and highly efficient mist filters that ensure minimal oil discharge from the exhaust - thereby providing economical operation and environmental protection. All pumps are air cooled, saving the capital and operating costs associated with providing cooling water, and there are nine variants offering a range of speeds from 20 to 750m3/h.

Pumps can be supplied individually or as part of a pre-engineered combination with BOC Edwards mechanical booster pumps to increase pumping speed and ultimate vacuum. Dual-frequency, wide-band motor options ensure compatibility with power sources worldwide.

For more information, visit www.bocedwards.com

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