The Australian-made, WaterMark-approved Irritrol IV25FC 25mm valve controls the water supply to an irrigation system or individual zone. Used as a master valve, it opens with the controller’s master-valve output to supply the downstream zone valves.
The flow-control handle adjusts water flow and can be removed to help prevent unauthorised adjustment. A balanced, springless diaphragm and slow-closing action help reduce pressure surges when the valve closes.
The internal manual bleed lever releases pressure above the diaphragm into the outlet pipe, allowing local testing without discharging water into the valve box. Return the lever to its automatic position after testing. The threaded bonnet gives access to the internal components for servicing.
