our policy is one of continued research and development. we therefore reserve the right to amend, without notice, the specifications given in this document. ordering information see ordering information on following pages. iso symbols relieving non relieving 5/96 n/uk 8.6. 063.01 issue no.1 revision 0 r74 excelon series 74 pressure regulator 3/8", 1/2", 3/4" port sizes l excelon design allows in line or modular installation l full flow gauge ports l balanced valve design minimises effect of variation in the inlet pressure on the outlet pressure l standard relieving models allow reduction of downstream pressure when the system is dead-ended l push to lock adjusting knob with tamper resistant accessory l optional reverse flow models available for use downstream of directional control valves technical data fluid: compressed air maximum pressure: 20 bar operating temperature*: -20 to 80? *air supply must be dry enough to avoid ice formation at temperatures below 2 c. typical flow with 10 bar inlet pressure, 6,3 bar set pressure and a droop of 1 bar from set: 105 dm 3 /s gauge ports: 1/4" ptf with ptf main ports 1/4" iso rc with iso rc main ports 1/8" iso rc with iso g main ports materials: body: aluminium bonnet : aluminium valve: brass elastomers: nitrile bottom plug: acetal
wall mounting bracket ? 50 mm gauge metal panel nut tamper resistant cover r1/8 connection & seal wire ?? 4324-50 4 bar: 18-013-011 4348-89 4355-51 10 bar: 18-013-013 25 bar: 18-013-014 seal wire: 2117-01 n/uk 8.6. 063.02 issue no.1 revision 0 5/96 typical performance characteristics r74 our policy is one of continued research and development. we therefore reserve the right to amend, without notice, the specifications given in this document. 8 6 4 2 0 outlet pressure - bar 0 20 40 60 80 100 air flow - dm 3 /s port size: 1/2" inlet pressure: 10 bar range: 0,3 to 10 bar 8 6 4 2 0 outlet pressure - bar 0 20 40 60 80 100 air flow - dm 3 /s port size: 1/2" inlet pressure: 7 bar range: 0,3 to 10 bar alternative models ordering information . models listed include unidirectional flow, iso g parallel threads, knob adjustment, relieving diaphragm, 0,3 to 10 bar outlet pressure adjustment range. r 7 4 - h h h - h h h h threads substitute ptf a iso rc taper b iso g parallel g adjustment substitute knob k t-bar t accessories port size model flow ? dm 3 /s weight kg g3/8 r74g-3gk-rmn 98 0,82 g1/2 R74G-4GK-RMN 105 0,80 g3/4 r74g-6gk-rmn 105 0,78 diaphragm substitute relieving r non relieving n gauge substitute with ( ? 50 mm) g without n outlet pressure adjustment range* substitute 0,3 to 4 bar f 0,3 to 10 bar m 0,7 to 17 bar** s flow characteristics flow characteristics ? typical flow with 10 bar inlet pressure, 6,3 bar set pressure and a droop of 1 bar from set. flow type substitute standard g reverse r * regulator 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 17 bar outlet pressure range are available only with the t-bar adjustment; therefore substitute t at the 7th position and s at the 12th position. ?? use padlock with shackle up to 8 mm (0.3") in diameter.
our policy is one of continued research and development. we therefore reserve the right to amend, without notice, the specifications given in this document. 5/96 n/uk 8.6. 063.03 issue no.1 revision 0 r74 74
56
37
80
43
127
service kits item type part number service kit relieving 4381-700 non relieving 4381-701 panel mounting hole diameter: 52 mm panel thickness: 2 to 6 mm service kit includes diaphragm assembly, valve assembly, valve spring, bottom plug o-ring. 74
37
80
43
151
56
port c l 5 20 6 50 61 69
4
37
25
51 79 port c l use 5 mm screws to mount bracket to wall. bracket mounting bracket kit reference model part no. all models 4324-50
n/uk 8.6. 063.04 issue no.1 revision 0 5/96 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 ?echnical 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 norgren. 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. r74 our policy is one of continued research and development. we therefore reserve the right to amend, without notice, the specifications given in this document.
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