37T-8 RATERMANN Cryogenics T (844) 341-3433 S F (844) 341-3444 S Website: www.rmicryo.com S Email: [email protected] Gas Delivery Regulator Series GDR Gas Delivery Regulator Series GDR Description of Generant GDR Series The GDR Series Regulator provides reliable and precise pressure control in the most demanding applications. Optimized spring design with unique venturi design assures high flow with extremely low droop characteristics. Solid, non-tied diaphragm and all brass construction will provide leak-free and long-lasting performance. Regulator is fully balanced to virtually eliminate outlet pressure fluctuations due to inlet pressure variations. All GDR Series regulators are 100% factory tested. Features . FULLY BALANCED DESIGN: Maintains a constant delivery pressure regardless of inlet pressure fluctuations. . OPTIMIZED FOR HIGH FLOW: Unique Venturi Tube and Optimized Spring Design allows for high flow rates. . WIDE PRESSURE RANGE: Inlet Pressures up to 550 PSI, Outlet Pressures up to 450 PSI. . SOLID, NON-TIED, DIAPHRAGM: Solid diaphragm eliminates potential leak path and increases sensitivity. . CONFIGURABLE: Order Regulators with Various Porting Options, Panel-Mounted, with Chamber Pipe-A-Way, or Pilot Operated. . OXYGEN SERVICE COMPATIBLE: Designed for use in Oxygen Service and Cleaned for use in O2 Service standard. Technical Data GDR-500 Max Inlet Pressure: 550 PSIG (37.9 bar) Outlet Pressure Ranges: Spring Outlet Pressure Range A 0-55 PSIG (0-3.8 bar) B 50-135 PSIG (3.5-9.3 bar) C 125-225 PSIG (8.6-15.5 bar) D 225-450* PSIG (15.5-31 bar) *rated at 450 PSIG @ 100°F A, B, and C Range Springs are interchangeable. D Range Spring requires dedicated Chamber. Fail Open Flow Coefficients: Port Configuration Fail Open Cv 1/4” NPT and BSPT 1.6 3/8” NPT 2.4 1/2” NPT and BSPT 2.9 GDR-500 Pilot Operated Max. Pilot: 450 PSIG (31.0 bar) @ 100°F Max. Usable Cv: 1.5 Pilot Pressure to Outlet Pressure: 1/.95 (100 PSI Pilot = 95 PSI Outlet) GDR-1000 Max Inlet Pressure: 400 PSIG (27.6 bar) Outlet Pressure Ranges: Spring Outlet Pressure Range A 0-55 PSIG (0-3.8 bar) B 50-135 PSIG (3.5-9.3 bar) C 125-225 PSIG (8.6-15.5 bar) A, B, and C Range Springs are interchangeable. Fail Open Flow Coefficients: Port Configuration Fail Open Cv 3/4” and 1” NPT 5.8 3/4” and 1” BSPT 5.8 GDR-1000 Pilot Operated Max. Pilot: 250 PSIG (17.2 bar) @ 140°F Max. Usable Cv: 2.7 Pilot Pressure to Outlet Pressure: 1/.90 (100 PSI Pilot = 90 PSI Outlet) Effect of Inlet Pressure Variation on Set (Regulator Balance): < 0.25 PSI per 100 PSI Materials of Construction Component Material Body CW617N Forged Brass, EN 12420 Adjustment Screw, Valve, Valve Stem, Spring Button, Spring Retainer, Venturi Tube CDA 360 Brass, ASTM B16 Chamber Insert 303 SS, ASTM A276 Adjustment Springs GDR-500: Music Wire, ASTM A228 GDR-1000: Chrome Silicon, ASTM A401 Valve Spring 302 SS, ASTM A313 Diaphragm FKM, EPDM, or Nitrile on Nylon Backing Soft Seals (Valve and O’Rings) FKM, EPDM, or Nitrile Trim (Flange Screws and Locknut) 18-8 Stainless Steel NOTES: Regulators are assembled with Dupont Krytox® lubricant. 1/4” - 1” NPT, BSPT Spring Reference & Pilot Operated Standard Configuration Pipe-Away Chamber Option Panel Mounted Pilot Operated (Dome Loaded) DuPont™ Krytox™, and Vydax® are registered trademarks or trademarks of E.I. duPont de Nemours and Company WARNING: Products in this catalog can expose you to chemicals including lead which is known to the State of California to cause cancer, birth defects or reproductive harm. For more information, go to https://www.p65warnings.ca.gov
