The new Type ED pilot-operated steam-pressure regulator is for steam distribution systems, district heating systems, pressure control for steam plants and single, two-stage or parallel reduction. The product is available in cast iron or cast steel in sizes ranging from three-eighths to 12 inches, and for pressures to 600 pounds force of pressure per square inch gauge and temperatures to 750ºF. The Spence Type ED pilot-operated pressure regulator controls operation within plus or minus 1 psig. The regulator requires no external power signal and is available with a variety of special construction features such as balancing to accommodate high turndown, liquid and low differential service.
Spence Engineering Co. Inc., 150 Coldenham Road, Walden, NY 12586; (800) 398-2493; www.spenceengineering.com.
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