2/2 AIR OPERATED VALVES 1/2” - 2” 1. PISTON VALVES, SIZES 1/2” - 2” FEATURES: • Valve is controlled by compressed air acting on piston in the cylinder. We recommend using JAKSA 3-way control valve for pilot fluid shut-off. Various pneumatic control devices can also be used, however. • Valve is shut by the spring force. • When pilot pressure is applied (e.g. by activating the 3-way control valve) the valve opens. When pilot fluid is shut off the valve also shuts. Pilot fluid is exhausted through pipe vent. • Required pilot pressure depends on main fluid pressure, but in must not exceed 10 bar. 2. AIR-OPERATED HIGH PRESSURE VALVES - max 400 bar FEATURES: • Valve is controlled by compressed air acting on piston in the cylinder. • Valve is shut by the spring force. • When pilot pressure is applied the valve opens. When pilot fluid is shut off the valve also shuts. Pilot fluid is exhausted through pipe vent.

3. DIAPHRAGM VALVES, SIZES 1” - 2” FEATURES: • Valve is controlled by pilot fluid (air, water) acting on the diaphragm which separates it from the main fluid. • In its basic position, the valve is held open by means of spring force. • When pilot fluid is applied the valve closes. Valve opens when the coil is energised and shuts off the pilot fluid. Pilot fluid is exhausted through pipe vent. • Equired pilot pressure is 1 bar over the main fluid pressure, however, it must not exceed 8 bar. TECHNICAL DATA: • Ports: - 1” (DN25) - 6/4” (DN40) - 2” (DN50) • Differential pressure: 0 - 6 bar • Pilot...