[ Regulating valve ] With the reform of the heating system, household heat metering and compartment temperature control have begun to enter the implementation stage. It is very common to install a temperature control valve on the radiator. The temperature control valve is used to realize the temperature control of the compartment. It is a good thing to benefit the country and the people, but how to choose the temperature control valve is not completely user-friendly, if it is not correct, it can save the energy to a large extent, and it can meet the needs of different users for indoor temperature adjustment. Selecting a product can not only satisfy the demand, but also may bring unnecessary economic losses to the user. Here, I will introduce some options to the small stolen door.
    
A thermostatic valve is a device that is installed on the radiator water supply pipe for temperature regulation (actually flow regulation). It is divided into manual temperature control valve and automatic temperature control valve. Automatic temperature control valve is also called self-operated temperature control valve or automatic thermostatic valve. It is also referred to as thermostatic valve.
    
The automatic temperature control valve is composed of a self-operated actuator of the temperature sensor and a special matched temperature control valve body. The structure of the temperature control valve body often has two kinds of two-way valves, such as straight-through and angle-pass valves. Two-way valves are primarily used in dual pipe systems or in specially designed new single pipe systems.
    
In recent years, according to the differences between single and double pipe systems, graduate students have produced three-type thermostatic valves specifically for single-tube systems and special four-way valves for dark-mounted single and double-tube systems. These four-way valves are now more common in imported products, such as the GIACOMI-NI four-way valve, which is not only suitable for various radiators, but also suitable for single and double pipe systems, and also has the ability to meet The connection of various concealed pipes.
    
Thermostatic valves are usually available in manual or automatic mode, and the valve operating principle is quite different. The manual temperature control valve usually adopts a spiral lifting valve core, and the rotation of the handle is linearly displaced by the spiral into a spool. In order to adapt to the unique linear movement mode of the self-actuating mechanism of the temperature control sensor, the automatic temperature control valve is usually designed to be linearly displaced by automatic resetting, so the two valve bodies are generally not interchangeable.
    
However, there are also interchangeable and specially designed valve bodies that can be used universally, that is, a valve body using an automatic temperature control valve, and a suitable manual screw lifting mechanism can be used to realize universal exchange of manual and automatic. This improvement is particularly suitable for China's national conditions and is very practical. In many projects, in order to save the initial investment of the developer, a valve body with automatic temperature control function is attached and a special screw lifting handle is attached. The realization of the manual temperature control valve with 1/3 of the automatic temperature control valve cost (this price is basically equivalent to the manual temperature control valve), and the user to achieve automatic temperature control in the future to leave the upgrade space. This kind of product is rare even in imported products. Italy's Jecomini is in front of the market in this respect, providing a kind of double adjustment between the manual and automatic temperature control valves. Thermostatic valve, eight-speed setting, indoor temperature is set with your convenience. It is worthy of being the world's largest supplier of HVAC valves. Because of the particularity of the valve between the manual and automatic temperature control valves, the choice will be more complicated, and this complexity creates opportunities for some unskilled personnel and speculative salesmen to "make the eye".
    
In the current market, there are many suppliers of automatic temperature control valve suppliers who recommend a pure automatic temperature control valve body with a simple adjustment handle as a temperature control valve with dual adjustment function, and some users adopt this method. The temperature control valve, this is not very suitable, there is a big hidden danger, such a simple temperature control valve body with a simple adjustment handle, but the design of the handle is to meet the automatic temperature control valve Before the valve head is installed, it is temporarily used for system adjustment to meet the engineering test pressure test. After the test pressure test process is completed, it is replaced by the automatic temperature control valve head. Due to its temporary nature, the simple adjustment is made. The handle borrows the original thread used to fix the temperature-controlled valve head on the valve body for screw lifting.

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