SOFT-START VALVE: soft-start valves series “UZAP” are produced with connection G1/4″ in the pneumatic and solenoid actuated versions. The working of the soft-start valve consists in feeding gradually air into the circuit with adjustable flow. When the pressure in the circuit reaches the 50 รท 60% of the upstream set pressure, the valve switches to full capacity, supplying the circuit with the maximum flow rate.