A highly advanced TMV3 approved thermostatic mixing valve for use in the basin, shower, bidet and high-pressure bath fill applications (above 1 bar). The Heatguard TMV3-8 valve is designed to control the mixed water outlet temperature and pressure of the hot and cold water supplies and to shut off the mixed water outlet instantly in case of hot or cold water failure. It incorporates a unique purpose-built adjuster key so that standard tools cannot be used by unauthorised persons to change the set outlet temperature. Supplied with 4 in 1 service fittings featuring an isolating ball valve, large surface area strainer, single check valve for crossflow protection, and a gauge /flushing port for checking system conditions or for connection of flushing to remove system debris prior to commissioning the mixing valve. Features & Benefits TMV3 approved D08 thermostatic mixing valve Suitable for the basin, shower, bid and bathfill outlet applications Rapid thermostatic failsafe on either cold or hot failure Anti-tamper cap - requires included adjuster tool Includes 4 in 1 adaptor with built-in isolators Fittings for 22mm outlets Outlet temperature range of 38-46°C WRAS Approved Specification Factory temperature setting: 38°C Temperature setting range: 38-46°C Working pressure, static: 16 bar max. Working pressure, dynamic: 0.2 - 0.5 bar Minimum flow rate: 4 lpm 22mm connections