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.
• Required pilot pressure is 1 bar over the main fluid pressure, however, it must not exceed 8 bar.
TECHNICAL DATA
Viscosity: 21 mm2/s max.
Response time: 10 to 20 ms
Duty cycle: continuous (ED100%)
Cycling rate: 10 - 100 cycles/min