China Solenoid

In an irrigation system where each head can be run independent of others, each head has its own control wires and solenoid. The process of changing this solenoid is very similar to changing the solenoid on a control valve. The major difference is the need to make sure that the entire system has no water pressure. If the system has pressure, then when the solenoid is removed, the person changing the solenoid will get wet.

Most home irrigation systems have the control valves installed in ground boxes or above ground. But, in some situations the valves are buried directly in the ground without a box. In this case, locating the valve can be a hit or miss operation without the correct tool. While it is possible to locate a valve with a simple metal detector, most valves do not have enough metal to register on the detector. The easiest way to locate the valve is to trace the wire.

A solenoid is an electromechanical device which allows for an electrical device to control the flow of a gas or liquid. The electrical device causes a current to flow through a coil located on the solenoid valve. This current flow in turn results in a magnetic field which causes the displacement of a metal actuator.

A solenoid valve is an electromechanical valve for use with liquid or gas controlled by running or stopping an electric current through a solenoid, which is a coil of wire, thus changing the state of the valve. The operation of a solenoid valve is similar to that of a light switch, but typically controls the flow of air or water, whereas a light switch typically controls the flow of electricity. Solenoid valves may have two or more ports: in the case of a two-port valve the flow is switched on or off; in the case of a three-port valve, the outflow is switched between the two outlet ports. Multiple solenoid valves can be placed together on a manifold.