This Bermad S-390 replacement suits compatible valves fitted with a two-way, normally closed 24V DC solenoid.
The solenoid remains powered while the valve is open. When the controller switches off the power, the valve closes.
Use a control system with a continuous 24V DC output suitable for the solenoid. This model does not use the opening and closing pulses supplied by DC-latching battery controllers.
Match the replacement to the part number on the existing solenoid. Replacing the solenoid allows a serviceable valve body to remain connected to the pipework.