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 5/96 n/uk 8.9. 043.01 issue no.1 revision 0 v74g excelon series 74 pressure relief valve 3/8", 1/2", 3/4" port sizes l excelon design allows in-line or modular installation l push to lock adjusting knob with tamper resistant accessory l easily disassembled for servicing without removal from air line l helps protect air operated equipment from over pressure by retarding excessive pressure build up technical data fluid: compressed air operating temperature*: -20 to 80? * air supply must be dry enough to avoid ice formation at temperatures below 2 c. gauge ports: 1/4" ptf with ptf main ports 1/4" iso rc with iso rc main ports 1/8" iso rc with iso rc main ports materials: body: aluminium bonnet: aluminium valve: aluminium and nitrile elastomers: nitrile bottom plug: acetal
n/uk 8.9. 043.02 issue no.1 revision 0 5/96 typical performance characteristics v74g our policy is one of continued research and development. we therefore reserve the right to amend, without notice, the specifications given in this document. 12 9 6 3 0 inlet pressure - bar 0 20 40 60 80 100 relief flow - dm 3 /s port size: 1/2" range: 0,3 to 10 bar alternative models ordering information . models listed include iso g parallel threads, knob adjustment and a 0,3 to 10 bar relief pressure adjustment range*. v 7 4 - g h h - h h n h threads substitute ptf a iso rc taper b iso g parallel g adjustment substitute knob k t-bar t 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 accessories port size model weight kg g3/8 v74g-3gk-nmn 0,69 g1/2 V74G-4GK-NMN 0,68 g3/4 v74g-6gk-nmn 0,67 gauge substitute with ( ? 50 mm) g without n relief pressure adjustment range* substitute 0,3 to 4 bar f 0,3 to 10 bar m 0,7 to 17 bar** s relief curve * relief valve 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 relief 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.
5/96 n/uk 8.9. 043.03 issue no.1 revision 0 v74g our policy is one of continued research and development. we therefore reserve the right to amend, without notice, the specifications given in this document. 74
56
43
127
37
80
service kits item type part number service kit diaphragm & seal 4384-700 panel mounting hole diameter: 52 mm panel thickness: 2 to 6 mm service kit includes diaphragm, bottom plug o-ring. 74
56
151
43
37
80
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 8.9. 043.04 issue no.1 revision 0 3/96 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. v74g 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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