In response to increasing concern about energy costs and environmental factors, users of gas compression and transfer equipment are turning to hydraulic drives as an alternative to air and electric powered units. U. S. company Haskel International is meeting this growing market need by introducing a new line of hydraulic driven gas boosters.

The hydraulic drive allows higher pressure and flow rates with less horsepower consumed for horsepower produced, the company reports. The closed hydraulic system also has fewer environmental effects than some competitive pneumatic driven systems that require permanent airline lubrication and therefore exhaust lubricated air into the workplace.
"These new products use the same compression technology that has been successful in our existing line of air driven gas boosters," says Peter Duffy, Haskel's vice president, sales and marketing. "Adding the option of hydraulic drive will allow us to meet the needs of customers who have become concerned with the increasing operating costs of pneumatic systems and the high cost of electric drive non-lubricated compressors."

Wide Range of Applications
Typical applications for hydraulic driven gas boosters include: gas-assisted plastic injection molding, isostatic pressing, powder metallurgy, CO2 foaming of Polystyrene, gas cylinder filling, hydraulic accumulator charging, oilfield high volume gas testing, missile and satellite launch and guidance systems, component testing, cutting and welding.
The new boosters are available in three modular configurations with flow rates as high as 160 scfm and output pressures up to 20,000 psig. The system configurations include low to very high compression ratios and a wide range of output performance.
The integral valve provides smooth stroke direction changeover and cycle rate control. The hydraulic drive and gas compression sections are fully separated, assuring operation free of hydrocarbons.
The boosters' ability to sense "runaway" conditions and control maximum cycle rate optimizes seal life by preventing excessive seal surface speed. Modular design facilitates simple conversion and changeover of gas compression sections.

Three Configurations
The basic system (HG Series) is provided as a double-acting or two-stage booster depending on the user's application. Standard features include integral water-cooling jackets, an intelligent valve controller with relief valve protection and stainless steel interconnecting pipework.
The open frame design Series 100 also includes hydraulic power supply, gas and hydraulic pressure instrumentation and cooling loops.
The Series 200 system has an enclosed cabinet and additional features including automatic gas outlet pressure shutdown, electric control panel with 24 VDC power supply, weatherproof enclosure and gas filtration inlet/outlet.
Available optional features include motor starter, inlet pressure and temperature control loops, water chiller, noise attenuating panels and remote operator station.
Headquartered in Burbank, California, USA, Haskel International manufactures hydraulic and air-driven high-pressure gas boosters, pumps, air pressure amplifiers and related equipment. It distributes and services its products worldwide through company offices, subsidiaries and distributors in North America, South America, Europe, Asia and the Pacific Rim.

Caption: New hydraulic boosters from Haskel International meet a wide range of gas transfer and compression applications.

Haskel hydraulic gas boosters will beexhibited at:
Pumps & Systems Exposition, Ho Chi Minh City, Vietnam,
October 13-16, Booth #335
Offshore Southeast Asia '98, Singapore,
December 1-4 Booth #6H3-01
Offshore Technology Conference, Houston, Texas, USA
May 3-6, 1999

For additional information, contact:
Haskel International Inc.
Peter Duffy
V. P. Sales and Marketing
100 East Graham Place
Burbank, CA 91502 USA
Tel +1 818-843-4000
Fax +1 818-841-4291

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