fresh and wonderful Features: Electric Solenoid Valve For Water Air N/C 220V AC 1/2" Normally Closed. Suitable to be used in water and coffee viscosity fluid applications. If your central heating or irrigation sprinkler formulation is rarely operating properly it can be appropriate right down to the solenoid valve. Repair a faulty valve with this model new, immediate acting 220V AC diaphragm-style alternative Specification: Voltage:220V AC Inlet and outlet:hose barbs for 1/2" (outer diameter) hose Pressure:0 - 0 Max fluid temperature:80°C Operation mode:normally closed Valve type:diaphragm (operated through technique of Servo) Usage:water and occasional viscosity fluids Please be aware it's not suitable for use with gravity fed tips