GD720 Series - Aerodyne Controls - #1

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pressure regulators GD720 Series High Pressure, Manually Controlled Pressure Reducing Regulator Inlet 0 to 10,000 psig & Outlet 5 to 6,000 psig How it Works OUT IN OUT INTo built-in LR SeriesRegulatorDiaphragm OUT IN"Dome"Check ValveInlet ClosedVent Closed Balanced poppet is spring-loaded against the seat. When full upstream pressure is applied, a slightly unbalanced force is developed which enhances sealing. Regulating As the downstream process demands flow, the downstream pressure acting on the bottom of the diaphragm decays, allowing the adjusting spring force to push the poppet down. This in turn unseats the poppet, allowing flow to begin and pressure under the diaphragm to increase until balance is achieved between dome pressure and downstream pressure. This condition continues until process demand ceases. At this point, increasing pressure overcomes dome pressure force, moving diaphragm up, allowing poppet to close. Venting If the downstream pressure should increase beyond regulation set point, or handle is backed off to decrease regulated pressure level, downstream and dome pressure will vent through check valve and through the built-in LR Series regulator. Features • Full range capability • Single hand wheel control • Balanced poppet insures accuracy • Integral vent valve Applications • Air compressor systems • Oxygen system charging • Aircraft tire struts • Aircraft component pressure testing Technical Data Body Construction Materials Bronze or stainless steel Seat Material Vespel® SP-21 Seals & Diaphragm Material Neoprene Adjustment Spring Material Zinc chromate over black oxide high carbon steel Valve Spring Material Stainless steel Other Components Same as body material, stainless steel & Teflon® Port Sizes ¼½, ½½ NPT female; ¼½, 916½ Aminco, AND10050´4 or AND10050–8 Pressure Ratings Maximum inlet pressure: • Bronze: 7,000 psig (483 BAR) • Stainless steel: 10,000 psig (690 BAR) Maximum outlet pressure: 6,000 psig (414 BAR) Temperature Range -65° F to +160° F (-54° C to +71° C) Flow Capacity Cv = 0.44 Orifice diameter = 0.155½ Weight 11 lbs Note: Proper filtration is recommended to prevent damage to sealing surfaces. Circle Seal Controls 2301 Wardlow Circle • Corona, CA 92880 Phone (951) 270-6200 • Fax (951) 270-6201 www.circle-seal.com • ind_sales@circle-seal.com ..........................................