Rated input voltage: AC220-240V Interface: G3/4" Frequency: 50/60Hz Insulation class: Class F Environmental conditions: ambient temperature -1060; relative humidity not more than 95% (ambient temperature is 25) Start-up characteristics; when power supply voltage is 85% of the rated voltage and the test water pressure is 0.02-0.80MPa, the water inlet valve should be able to start normally Vibration test: fix the water inlet valve on the vibrating table, and the water inlet valve should be able to start normally after 10 minutes of vibration on each of the three axes at a full amplitude of 3 mm and a vibration frequency of 22 Hz . Flow characteristics;connect the water inlet valve to the pressure regulating water source according to the working position, under the specified water pressure, apply voltage rated for 1 min, which must meet customer drawing requirements Electrical stiffness; use high-voltage test equipment with a voltmeter accuracy of at least 5%, the leakage current is within 0.5mA, and the conductive part and the mounting hole are applied. < p>Electrify continuously; if the water inlet valve does not supply water, continuously electrify for 12 hours at rated voltage, monitor with a voltmeter, the valve body should not be deformed and the coil should not be burned Insulation resistance inspection; measure with a 500V megohmmeter or insulation resistance tester with an error not exceeding 5%, and the insulation resistance between the conductive part and the exposed non-conductive part should be greater than 100M