The MacDonald MI-778000 is an exposed mechanical time flow urinal valve designed for wall-hung urinals. Its angled configuration suits urinals with top inlet connection, providing a robust and reliable flushing solution for commercial, education and public washroom applications (neck tube to connect to the urinal is supplied separately).

The self-closing mechanism provides an approximately 3-second timed flush, with a pre-set flow rate of 0.15L/s at 300kPa. The flow rate can be adjusted to suit site conditions, with an operating pressure range of 150–500kPa and 300kPa recommended.

The valve features F 1/2" inlet and M 1/2" outlet water connections and is compatible with rainwater supply systems.

Manufactured from durable chrome-plated brass, the valve is supplied complete with a wall plate for a clean, professional installation. Its simple mechanical operation requires no electrical power, providing a reliable, low-maintenance solution for high-use washroom environments.