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G H F B A C • Balanced valve design for optimum pressure control • Standard relieving models allow reduction of downstream pressure when the system is dead-ended • Push to lock adjusting knob with tamper evident accessory Dimensions - Inches Series A B C F G H Panel Ø Panel depth 72 2.87 1.30 1.02 1.97 1.89 1.38 1.57 0 to .16 73 3.78 1.54 1.22 2.68 2.44 2.20 1.89 .07 to .25 74 5.00 1.69 1.22 3.15 2.91 2.20 2.05 .07 to .25 † 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. * Kit includes: diaphragm, valve, valve spring, and o-rings R72G Series Model no. Port size PTF Spring rate psig Wall mounting bracket Quick-mount pipe adapter Quikclamp Quikclamp and bracket Neck mounting bracket Tamper evident cover & wire Gauge psig Service kit* R72G-2AK-RFN 1/4" 5 to 60 4224-50 4215-02 4214-51 4214-52 74316-50 4255-51 18-013-211 4381-500 R72G-2AK-RFG 1/4" 5 to 60 4224-50 4215-02 4214-51 4214-52 74316-50 4255-51 Gauge included 4381-500 R72G-2AK-RMN 1/4" 5 to 150 4224-50 4215-02 4214-51 4214-52 74316-50 4255-51 18-013-212 4381-500 R72G-2AK-RMG 1/4" 5 to 150 4224-50 4215-02 4214-51 4214-52 74316-50 4255-51 Gauge included 4381-500 R72G-3AK-RFN 3/8" 5 to 60 4224-50 4215-03 4214-51 4214-52 74316-50 4255-51 18-013-211 4381-500 R72G-3AK-RFG 3/8" 5 to 60 4224-50 4215-03 4214-51 4214-52 74316-50 4255-51 Gauge included 4381-500 R72G-3AK-RMN 3/8" 5 to 150 4224-50 4215-03 4214-51 4214-52 74316-50 4255-51 18-013-212 4381-500 R72G-3AK-RMG 3/8" 5 to 150 4224-50 4215-03 4214-51 4214-52 74316-50 4255-51 Gauge included 4381-500 Models Accessories Service kit Fluid: Compressed air Maximum pressure: 300 psig (20 bar) Operating temperature*: R72: -30° to 150°F (-34° to 65°C) R73 and R74: -30° to 175°F (-34° to 80°C) * Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C). Flow** Model SCFM Model SCFM R72G 70 R74G 3AK 208 R73G 2AK 91 R74G 4AK 220 R73G 3AK 144 R74G 6AK 220 R73G 4AK 144 ** Typical flow with 150 psig inlet pressure, 90 psig set pressure and a 15 psig droop from set. NOTE: 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. Materials Elastomers: nitrile Bottom plug: acetal R72G Body: zinc Bonnet: acetal Valve: Polypropylene and Geolast ® R73G, R74G Body: aluminum Bonnet: aluminum or zinc Valve: Polypropylene and Geolast ® Technical Data In stock Ships within one week EXCELON MODULAR SYSTEM PRESSURE REGULATORS R72G, R73G, R74G – 1/4" TO 3/4" PTF 1 AM-126 For further information visit www.imi-precision.com and use the new improved search function. If you cannot see the option you require please contact us. AIR MANAGEMENT Online at www.imi-precision.com/us or call 1.800.514.0129