Pneumatic And Hydraulic Equipment Page 698

REVERSE FLOW REGULATORS Theory of operation: Reverse flow regulators allow the outlet pressure to flow back through the regulator [via an internal check valve] when the inlet pressure is switched off. This is important when the regulator is placed between a valve and a cylinder. Features: Full flow gauge ports Low torque, nonrising pressure adjustment knob Balanced valve with floating pin Relieving design, outlet pressure can be reduced when regulator is in dead-head. Relieving Model with Gauge 5-150 PSIG adjustment range Flow Size [scfm] Model # Price 1/4" 70 R72R-2AK-RMG $63.55 3/8" 144 R73R-3AK-RMG $88.75 1/2" 220 R74R-4AK-RMG $116.80 3/4" 220 R74R-6AK-RMG $116.80 Accessories Wall Mounting Brackets Plastic Panel Nut Metal Panel Nut (includes panel mount nut) Type Part No. Price Part No. Price R72 4248-89 $5.30 - - 74316-50 $9.20 R73 5191-89 $7.50 5191-88 $6.15 4461-50 $9.20 R74 - - 4248-89 $5.30 4368-51 $17.40 Repair Kit Relieving Type Part No. Price R72 4381-500 $15.05 R73 4381-600 $22.65 R74 4381-700 $25.40 Tamper Resistant Kits Part No. Part No. 4255-51 $9.85 4455-51 $13.10 4355-51 $13.40 R74 R72/ R73 R74 Shown, R72 Similar 74316-50 (R72) 4461-50 (R73) 4368-51 (R74) C Type A B Knob T-handle D E F G H J K L M N O P R S R72 1.98 1.31 4.19 5.34 0.96 1.01 0.16 1.57 2.34 1.50 1.90 1.10 1.50 1.00 0.78 1.20 0.30 0.20 R73 2.75 1.54 5.34 5.58 1.00 1.22 0.45 1.89 3.42 2.00 2.50 2.75 1.50 1.50 1.00 1.50 0.65 0.27 R74 3.15 1.69 6.67 7.64 1.45 1.24 0.25 2.06 3.65 2.00 3.50 3.37 22.06 1.38 0.90 2.20 0.95 0.28 Specifications Fluid: Compressed air Inlet Pressure- R72, R73, R74 300 psig maximum Temperature Range- R72: 0 to 150 o F All Others: 0 to 175 o F Note: Air supply must be dry enough to avoid ice formation at temperatures below 35 o F Gauge Ports- R72: 1/8" NPT All Others: 1/4" NPT R72- Body: Zinc Valve: Brass Elastomers: Nitrile Bonnet, Bottom Plug: Acetal R73/R74- Body and Bonnet: Aluminum Valve: Brass Elastomers: Nitrile Bottom Plug: Acetal Norgren pneumatics (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com JHF Catalog [ Volume 7 ] 698 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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