Hunter DC Latching Solenoid (458200)

For Use With SVC and WVC Controllers and Plastic Hunter Valves

What is a Hunter DC Latching Solenoid? Latching solenoids are activated in the same manner as a traditional non-latching solenoid. The controller sends a positive pulse to the DC latching solenoid causing the solenoid plunger to “pull up” which drains the upper chamber of the valve. This causes the diaphragm to lift off the valve seat which allows the valve to open (turn on).This is where the similarities end.

In standard non-latching solenoids, in which the traditional controller must provide a constant power supply to the solenoid coil to hold the plunger up, the direct current (DC) latching solenoid plunger is held in place by the magnetic field generated by the magnet around the bottom of the solenoid cavity. When the irrigation program is finished, the battery-powered controller sends a very short negative pulse to the DC latching solenoid, causing the plunger to drop. This allows the upper chamber to fill with water, causing the diaphragm to seal against the valve seat and close the valve. These short pulses consume very little battery power, allowing a battery-powered controller to work for many, many cycles.

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