Temperature Controlled Water Valves is a retrofit automatic apparatus. It has twin sensor adaptor, manual actuator and spacer. The adaptor can be used with both 2-port and 3-port control valves. It is used in conjunction with a twin sensor adaptor and a self-acting temperature control system, allowing manual shutdown without interfering with the control setting. It has own limiting conditions. A spacer, when fitted between the control system and any 2-port or 3-port control valve (except DN80 and DN100 3-port valves), enables the system to operate at a maximum of 350°C, providing that the control valve itself is able to tolerate such high temperatures.