Datasheets

Our policy is one of continued research and development. We therefore reserve the right to amend, without notice, the specifications given in this document. © 2020 Norgren Ltd 12/20 Warning: Cancer and reproductive harm — www.p65warnings.ca.gov. Warning These products are intended for use in industrial compressed air systems only. Do not use these products where pressures and temperatures can exceed those listed under »Technical features/data«. Before using these products with fluids other than those specified, for non-industrial applications, life-support systems or other applications not within published specifications, consult IMI Precision Engineering, Norgren Ltd. Through misuse, age, or malfunction, components used in fluid power systems can fail in various modes. The system designer is warned to consider the failure modes of all component parts used in fluid power systems and to provide adequate safeguards to prevent personal injury or damage to equipment in the event of such failure. System designers must provide a warning to end users in the system instructional manual if protection against a failure mode cannot be adequately provided. System designers and end users are cautioned to review specific warnings found in instruction sheets packed and shipped with these products. Typical Performance Characteristics RELIEF FLOW CHARACTERISTICS - AIR 0 0,5 1 1,5 2 2,5 dm 3 /s AIR FLOW 0 1 2 3 4 5 6 scfm 8 6 4 2 0 INLET PRESSURE bar 100 80 60 40 20 0 psig 3,5 (50) 1,7 (25) SET RELIEF PRESSURE: bar (psig) PORT SIZE: 1/8", 1/4" SPRING RANGE: 1,7 to 3,5 bar (25 to 50 psig) RELIEF FLOW CHARACTERISTICS - AIR 0 0,5 1 1,5 2 2,5 dm 3 /s AIR FLOW 0 1 2 3 4 5 6 scfm 8 6 4 2 0 INLET PRESSURE bar 100 80 60 40 20 0 psig 5,2 (75) 3,5 (50) 1,7 (25) SET RELIEF PRESSURE: bar (psig) PORT SIZE: 1/8", 1/4" SPRING RANGE: 1,7 to 5,2 bar (25 to 75 psig) RELIEF FLOW CHARACTERISTICS - AIR 0 0,5 1 1,5 2 2,5 dm 3 /s AIR FLOW 0 1 2 3 4 5 6 scfm 8 6 4 2 0 INLET PRESSURE bar 100 80 60 40 20 0 psig 180 160 140 120 12 10 PORT SIZE: 1/8", 1/4" SPRING RANGE: 4,8 to 10,4 bar (70 to 150 psig) SET RELIEF PRESSURE: bar (psig) 10,3 (150) 6,9 (100) 3,5 (50) See Example How to Select a Relief Valve The function of the 16-004 relief valve is to retard excess pressure buildup in a low volume air tank. Typically, a pressure regulator reduces supply pressure from the air compressor to a suitable working pressure. Compressed air, reduced to the working pressure, is stored in the low volume air tank. The 16-004 relief valve is installed in the tank to vent air from the tank should pressure become excessive. Flow capacity of the relief valve selected must equal or exceed the flow and pressure rating of the air compressor supplying the air tank. EXAMPLE: If your compressor delivers 5 scfm at 120 psig and your tank requires a working pressure of 90 psig, the relief valve must have a set pressure slightly higher than the 90 psig working pressure and be capable of flowing 5 scfm at 120 psig (or pressures less than 120 psig). Dimensions inches (mm) 0.79 (20) Dia. A A: 1.56 (62 ) for 1/8" pipe size 1.75 (44 ) for 1/4" pipe size

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