Pneumatic & Fluid Control Catalog - z7424CT

02 - Excelon Modular System Pressure Regulators

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AIR PREPARATION PRODUCTS 4 APP-11 For further information www.norgren.com Excelon ® modular system R72G, R73G, R74G Pressure regulators R72G R73G R74G Ordering information Models listed include uni-directional flow, PTF threads, knob adjustment, relieving diaphragm, 5 to 150 psig (0.3 to 10 bar) outlet pressure adjustment range*, with gauge. ISO Symbol Port Size Model Flow* scfm (dm3/s) Weight lb (kg) 1/4" R72G-2AK-RMG 70 (33) 0.79 (0.36) 1/4" R73G-2AK-RMG 91 (43) 1.36 (0.6) 3/8" R73G-3AK-RMG 144 (68) 1.36 (0.6) 3/8" R74G-3AK-RMG 208 (98) 1.80 (0.82) 1/2" R74G-4AK-RMG 220 (105) 1.77 (0.80) 3/4" R74G-6AK-RMG 220 (105) 1.73 (0.78) † Typical flow with 150 psig (10 bar) inlet pressure, 90 psig (6.3 bar) set pressure and a 15 psig (1 bar) droop from set. Excelon ® design allows in-line or modular installation Full flow gauge ports Balanced valve design minimizes effect of variation in the inlet pressure on the outlet pressure Standard relieving models allow reduction of downstream pressure when the system is dead-ended Fluid: Compressed air, neutral gases NOTE: Contact technical support for use with other media. Maximum pressure: 300 psig (20 bar) Operating temperature*: -30° to 175°F (-34° to 80°C) (72) -30° to 150°F *Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C). Materials R72G Body: zinc Bonnet: acetal (Zinc on 250 psi model) Elastomers: nitrile Bottom plug: acetal Valve: polypropylene and TPV R73G, R74G Body: aluminum Bonnet: (73) zinc, (74) aluminum Elastomers: nitrile Bottom plug: acetal Valve: polypropylene and TPV Technical data *Outlet pressure can be adjusted to pressures in excess of, and less than, those specified. Do not use these units to control pressures outside of the specified ranges. **Units with 250 psig outlet pressure range are available only with the T-bar adjustment, substitute T at the 7th position and S at the 9th position. Options selector R7H G-HHH-RHH Series Substitute 72 2 73 3 74 4 Port size Substitute 1/4" (72, 73) 2 3/8" (72, 73, 74) 3 1/2" (73, 74) 4 3/4" (74) 6 Threads Substitute PTF A ISO G parallel G Gauge Substitute With G Without N Outlet press adj range* Substitute 5 to 30 psig (0.4 to 2 bar) (72) C 5 to 60 psig (0.4 to 4 bar) F 5 to 150 psig (0.4 to 10 bar) M 10 to 250 psig (0.6 to 17 bar)** S Adjustment Substitute Knob K T-bar T R7*G Relieving

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