Working principle and uses of temperature control valves

Thread Content

Working principle of the temperature control valve: The temperature control valve is also known as a radiator temperature control device. The temperature control in the user’s indoor space is achieved through a radiator thermostatic control valve. The radiator thermostatic control valve consists of a thermostatic controller, a flow control valve, and a pair of connectors. The thermal bulb can change its volume in response to changes in the surrounding temperature, which in turn causes the valve element to move, thereby adjusting the amount of water flowing through the radiator and thus changing its cooling capacity. The set temperature of the thermostatic valve can be adjusted manually in order to control the indoor temperature. 　　Thermostatic valves effectively save energy and reduce heating costs. The heating system is designed and calculated based on the maximum heat load required at the lowest recorded outdoor temperature. However, the design temperature of a thermostatic valve is only relevant for a few days during the extremely cold season, which means that the heating system operates at full capacity only for those few days throughout the heating season. Generally speaking, the heat load required to maintain room temperature is much lower than the designed value, and moreover, this heat load is constantly changing. The heat load varies daily throughout the heating season as well. Install a thermostatic valve in each room to ensure that the \"free\" heat generated by sunlight, lighting systems, machinery, and human bodies can be made full use of, thereby achieving energy savings. To address the hydraulic balance issues in heating systems, thermostatic valves are an essential component in dual-pipe systems on higher floors, as they help to resolve the hydraulic balance problems within the piping network. Introduction to Thermostatic Valves Thermostatic valves are generally installed in front of radiators; by automatically adjusting the flow rate, they help maintain the room temperature desired by the occupants. Thermostatic valves are divided into two-way thermostatic valves and three-way thermostatic valves. The three-way temperature control valve is mainly used in single-tube systems with bypass pipes; its flow division coefficient can vary within the range of 0 to 100%, offering a large degree of flow regulation. However, it is relatively expensive and has a complex structure. Two-way temperature control valves are used in some double-pipe systems and in some single-pipe systems. The two-way temperature control valve used in dual-tube systems has high resistance ； The resistance for single-tube systems is low. The temperature sensing element of the thermostatic valve and the valve body are generally assembled as a single unit, with the sensing element itself serving as the sensor for the indoor temperature at the site. A thermostatic valve can automatically maintain an accurate room temperature as per preset requirements, unaffected by weather conditions.