According to the different working principles, it can be divided into self-operated thermostats and electric heating thermostats.
1. Self-operated temperature control valve
Self-operated heating temperature control valve is mainly composed of valve body, valve core, valve seat, conditioning sleeve (conditioning screws), reset spring, etc. When hot water enters the valve body, the temperature change of the temperature-sensitive element in the valve core is used to actively control the opening of the valve, close or actively adjust the opening of the valve, so as to achieve the intention of actively controlling the return water discharge temperature.High resistance thermostatic valve-Yuhuan Edsen Valve

The self-operated heating temperature control valve is equipped on the return water branch pipes of each group of radiators in the heating system. When the return water temperature in the copper-aluminum composite radiator reaches the planned return water temperature, the valve opens actively and the return water passes through. When the return water temperature of the radiator is higher than the planned return water temperature, the valve opening actively decreases and closes directly. In this way, even if the balance of each loop of the heating system is out of balance due to planning or construction, relying on the control function of the self-operated temperature-controlled flow regulating valve, it can actively tend to balance.
The self-operated heating temperature control valve is equipped with a conditioning sleeve (conditioning screw) to adjust the temperature of the discharged return water. If it is rotated clockwise for conditioning, the drainage temperature will decrease, and otherwise, the drainage temperature will increase.
2. Electric heating temperature control valve
It consists of a temperature controller, an electric heating actuator, and a valve (valve body). When in use, the temperature controller device is located on the inner wall of the room, which can fully sense the temperature of the room. The cable is connected with the electric heating actuator, and the electric heating actuator is connected with the valve. The user sets the required indoor temperature on the temperature controller according to heating needs; when the room temperature reaches the set temperature, the positive temperature coefficient thermistor in the electric actuator starts to operate to heat the thermal expansion device, which is the valve closed; On the contrary, the indoor temperature drops, the thermostat is disconnected, the actuator cools down, the expansion device shortens, and the valve opens. This allows for on-demand control of the room temperature to achieve the intention of saving heat.
According to the appearance and structure, it is divided into three-way thermostats and two-way thermostats. Usually, a two-way thermostats can be used at home. One side is connected to the radiator pipe and the other side is connected to the radiator. According to its viewpoint, it can be divided into 90-degree angle valves and straight valves; the equipment is divided into 4-point diameters, 6-point diameters, and 1-inch diameters; according to its operating method, it can be divided into intelligent active thermostats and manual thermostats. Then combined, there are many types. Users can choose thermostats suitable for their own use based on their own radiator caliber, equipment method and other conditions.
The standard equipment for radiators is a set of radiator equipment with 2 thermostats, but currently there is a set of radiators with one thermostats and a flow control valve. Therefore, only one thermostats can be used to regulate the temperature. There are 5 scales on the radiator thermostat valve, 0-5, which can be properly adjusted according to its own comfort.
