MacDonald Plumbing Supplies MacValve 28mm 3 Port Mid Position Motorised Valve

The MacValve 28mm 3 Port Mid Position Motorised Valve is designed to control water flow in central heating and domestic hot water systems. When installed with suitable room and cylinder thermostats, it provides automatic regulation of both services and moves to the mid position when heating and hot water are required at the same time. Designed for compatible 28mm pipework, it is supplied with compression fittings and features a synchronous motor drive with spring return action. The replaceable actuator head can be changed without draining down the system, helping simplify maintenance. An auxiliary switch, integrated manual lever and 1 metre five core flex provide useful features for professional plumbing and heating installations.

MacDonald Plumbing Supplies MacValve 28mm 2 Port Motorised Valve

The MacValve 28mm 2 Port Motorised Valve is designed to provide controlled water flow in central heating systems and other suitable flow control applications. Featuring a spring return mechanism and an auxiliary switch, it can be used to control the flow of water between a boiler, hot water cylinder and central heating circuit when correctly wired with a compatible room thermostat, cylinder thermostat and programmer. The valve is supplied with 28mm compression fittings and includes a 1 metre cable for electrical connection. With a replaceable actuator design, it offers a practical solution for heating engineers carrying out new installations, system upgrades and maintenance work.