74 Series
G3/8-G3/4
Technical Data
System air supply: Turn on system air supply prior to applying pilot
signal to operator. Failure to do so may cause valve to
continuously exhaust.
Fluid: Compressed air
Maximum pressure solenoid operated: Dependent on solenoid
rating. Must not exceed 17 bar (250 psig).
Maximum pressure pilot operated: 17 bar (250 psig) max.
Minimum operating pressure: 3 bar (44 psig)
Operating temperature solenoid operated: Dependent on solenoid
rating. Must be within range -20°C* to +80°C (0°F* to +175°F).
Operating temperature pilot operated:
-20°C* to +80°C (0°F* to +175°F)
* Air supply must be dry enough to avoid ice formation at temperatures below +2°C
(+35°F).
Air pilot port:
Rc1/4 with ISO G and ISO Rc main ports
1/4” PTF with PTF main ports
Exhaust port:
G1/2 with ISO G and ISO Rc main ports
1/2” PTF with PTF main ports
Typical flow with 6,3 bar (90 psig) inlet pressure and pressure
drop of 0.5 bar (7 psig):
57 dm3/s (P1 to P2 = Cv 4.4) (P2 to P3 = Cv 5.6)
Snap pressure: Full flow when downstream pressure reaches
50 – 80% of inlet pressure
Charge time for 2 litre downstream volume and 6,3 bar (90 psig)
inlet pressure:
Minimum: 0,2 sec.
Typical maximum: 110 sec.
Materials:
Body: Aluminium
Intermediate body: Aluminium
Elastomers: Synthetic materials
Filter discs: Sintered plastic
Internal components: Brass/steel
Top plate: Zinc
Exhaust bonnet: Zinc
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