Vapor Booster includes clean out port.

Press Release Summary:




Model 18B4 Vacuum Pump runs in conjunction with other vacuum pumps, enabling high throughput. Oil is vaporized at 200-250°C in boiler located at foot of pump. Clean out port is positioned on top of boiler and measures 200 mm in diameter. Optional oil level sensor gives volt-free contact to warn when low oil level is reached, while optional temperature sensor provides 4-20 mA output and is calibrated to read from 0-300°C.



Original Press Release:



New Vapor Booster Provides Additional Protection Against Process Down Time



BOC Edwards' market-leading, high-throughput vacuum pump, the 18B4, has been upgraded with additional features to enable easier maintenance and operation. The new version, 18B4B, includes a clean out port and optional oil level and temperature measurement sensors. These new features reduce cost of ownership by simplifying maintenance procedures and minimizing the down time that can occur as a result of low oil levels or loss of heaters.

The vapor booster is designed to run in conjunction with other vacuum pumps to enable high-throughput and pumping speeds of up to 4000ls-1. Oil is vaporized at a temperature of 200-250°C in the boiler that sits at the foot of the pump. As the vapor is ejected at high velocity through jets incorporated in the interior of the pump, gas entering through the inlet is diffused in the vapour stream and transferred to the outlet. The vaporized oil is then condensed as it contacts the cooled external surface of the pump and returns to the boiler.

The 18B4B's clean out port is located on the top of the boiler and measures approximately 200mm in diameter. Access is provided through an easily removable panel, facilitating quick and easy cleaning ­ resulting in greater pump reliability and performance.

The optional ultrasonic level and temperature measurement sensors can be fitted to opposite sides of the boiler. The level sensor gives a volt-free contact to warn when a low oil level is reached. This is factory set at six liters, but the customer can change the level for their own requirements. The temperature sensor provides a standard 4-20mA output and is calibrated to read from 0° to 300°C.

With these two options, down-time can be greatly reduced as the oil level and temperature can be monitored remotely. This enables intervention or maintenance to be planned and improves the efficiency of the process.

The new features of the 18B4B vapor booster are the result of a development program that involved input from OEMs and end users. ISO and ANSI flanged variants are available in addition to the existing flange configuration, and the dimensions remain the same, so that customers wishing to upgrade from an existing 18B4A can do so without altering their system.

For further information contact:
Anne Bradnick, Marketing Communications, 800-848-9800 x3517,
anne.bradnick@bocedwards.com

Product contact: Dave Sobiegray, Product Manager, 800-848-9800 x1234, dave.sobiegray@bocedwards.com.

For more information on our range of oil-free pumps as well as our other vacuum pumps and accessories, visit www.bocedwards.com, call 1-800-848-9800 or email info@bocedwards.com.

BOC Edwards, a BOC Group line of business, is a world leader in vacuum and pressure technology for industrial, scientific, process and semiconductor applications. The company designs, manufactures and supports equipment capable of achieving high vacuums down to 10-10mbar and pressure up to 3.5mbar. BOC Edwards invented the concept of the oil-free dry¹ vacuum pump and now markets a range of dry pumps using claw, roots, scroll and combined mechanisms for a wide range of vacuum and pressure applications. Other product technologies include rotary vane, vapour diffusion, liquid ring, steam ejector and turbo molecular pumping.

The BOC Edwards coating business offers thin film deposition systems for scientific and R&D applications, and a range of spectacle lens coating systems for the ophthalmic retail trade. BOC Edwards Pharmaceutical Systems produce specialist freeze drying and filling systems for aseptic packaging applications.

BOC Edwards is the trading name of BOC Limited which is part of The BOC Group plc.

Serving two million customers in more than 50 countries, The BOC Group is one of the largest and most global of the world's leading gases companies. It employs over 44,500 people and had annual sales of just over £4 billion (US$6.3 billion) in 2003. For more than a century BOC's gases and expertise have contributed to advances in many industries and aspects of everyday life including steel-making, refining, chemical processing, environmental protection, wastewater treatment, welding and cutting, food processing and distribution, glass production, electronics and health care.

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