P74F – EXCELON® Modular System

Soft start/dump valves

Technical features

Product Type	FRL Control Valves
Medium	Compressed air only
Operating pressure	Solenoid actuated: 3 … 10 bar (44 … 145 psi) Pilot actuated: 3 … 17 bar (44 … 250 psi)
Snap pressure	Full flow when downstream pressure reaches 50 – 80% of inletpressure
Charge time	For 2 litre downstream volume and 6,3 bar (90 psi) inlet pressure 0,2 sec. minimum 110 sec. maximum
Port size	G3/8, G1/2, G3/4, 3/8 PTF 1/2 PTF , 3/8 PTF
Pilot port	Rc1/4 with ISO G main ports 1/4 PTF with PTF main ports
Exhaust port	G1/2 with ISO G main ports 1/2 PTF with PTF main ports
Flow	57 dm3/s Operating pressure: 6,3 bar (91psi) Δp: 0,5 bar (7 psi) P1 » P2 = Cv 4,4; P2 » P3 = Cv 5,6
Standard compliances	II 2G Ex h IIC T6 Gb II 2D Ex h IIIC T85° Db
Ambient/Media temperature	Solenoid actuated: -20° … +50°C (-4° … +122°F) Pilot actuated: -20° … +80°C (+4° … +176°F) Air supply must be dry enough to avoid ice formation at temperatures below +2°C (+35°F).
Materials	Body & intermediate body: Aluminium Elastomers: Synthetic materials Filter discs: Sintered plastic Internal components: Brass/steel Top plate & exhaust bonnet: Zinc