... solenoid valve, brass solenoid valve, hot water solenoid valve, water vavle, shower solenoid valve, irrigation valve, washing machine solenoid valve, plastic solenoid valve, valve, hydrant valve, solar valve, hydraulic valve, water ... .02MPa,make and break for 10s respectively, lasting 1h, the check valve should be unblocked.Flow characteristicsPressure 0.02Mpa Flux >0.4L ...