Beduan 12V Plastic Water Electric Solenoid Valve Normally Closed 1/2" industrial 9" pen has a smart

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Beduan 12V Plastic Water Electric Solenoid Valve Normally Closed 1/2" industrial 9" pen has a smartBeduan 12V Plastic Water Electric Solenoid Valve Normally Closed 1 2" Solenoid valve installation introductionThe solenoid valve is a one way valve, and the water flow can only go in one direction. The solenoid valve is provided with a check function. There is no need to worry that the water will flow back to the pipe when the water stops. The end of the solenoid valve with a filter screen is the water inlet. the direction pointed by the arrow is the