Normally closed 550 mbar

Solenoid valves are connected to a gas detector and shut off the gas flow when an alarm is detected.After alarm situation is removed, solenoid valve must be reset manually. In order to reset the valve,check that the coil is receiving current, for threaded models unscrew the protection cap and pull the reset knob. Screw the cap when operation is completed.For flanged models unscrew the protection cap and screw it down in the apposite threading and pull it up.When operation is completed,unscrew the cap and screw it in first position.