Soft – start valves series “EZAP” are produced with connections G3/8″, G1/2″ and G1″ in the pneumatic and solenoid actuated versions. The working of the soft-start valves consists in feeding gradually air into the circuit with adjustable flow. When the pressure in the circuit reaches the 50 ÷ 60% of the upstream set pressure, the valve switches to full capacity, supplying the circuit with the maximum flow rate.