Professional Industrial Valves Manufacturer

How to choose the automatic temperature control valve ( Thermostatic valve)

by:Mech     2020-10-24

1, the temperature control valve is installed on the radiator pipes of temperature control, Is actually the flow control) A kind of device. Divided into manual temperature control valve and automatic temperature control valve, automatic temperature control valve is also called self-reliance type temperature control valve or automatic thermostatic valve, there are also referred to as the thermostatic valve. Automatic temperature control valve is made up of temperature sensors for type of actuator and supporting special temperature control valve body. The structure of temperature control valve body is straight, Angle valve of the two most common two-way valve. Two-way valve is mainly used for double tube system or by the special design of the new single pipe system.

2, in recent years, according to the difference of single and double pipe system, the valve industry and produce the special suitable for single pipe system of three-pass temperature control valve and with dark installed special four-way valve suitable for single and double pipe system. The four-way valve is found in imported products, such as foreign four-way valve, it is suitable for various radiators not only, and is suitable for single and double pipe system, at the same time also have to meet the dark outfit of a variety of pipe connection.

3, temperature control valve usually has manual and automatic two kinds, the valve movement principle are quite different. Manual temperature control valve usually use screw lift valve core, handle screw designed by spiral into a linear displacement of valve core. And automatic temperature control valve in order to adapt to the temperature sensor of self-reliance peculiar way of linear movement of the actuator, the movement of the valve core is usually designed to automatically reset the linear displacement directly, so the two body in general are not interchangeable. But there are interchangeable special design of the body can be universal, namely USES the automatic temperature control valve body, the additional manual spiral lifting mechanism, a suitable general swap can achieve both manual and automatic. This improvement is especially suitable for China's national conditions, has very practical value, at present a lot of projects, in order to save the developers of the early investment, fix the one which has the function of automatic temperature control valve with special screw lift handle, this is achieved by 1/3 of the cost of automatic temperature control valve ( The price of the basic equivalent of manual temperature control valve) Implement the manual temperature control valve, and to the user in the future to realize automatic temperature control upgrade space. Even if this product is also rare in the imported products, because of the differences between manual and automatic temperature control valve of the particularity of the valve, so the choice will be complex, this complexity to some business not jing and speculative salesmen caused the sham as the genuine opportunity.

in the current market there are a lot of automatic temperature control valve supplier with a summary of the regulating handle pure automatic temperature control valve as the control function of the double charging temperature control valve is recommended to the user, also some users have adopted such temperature control valve, it is not very appropriate, there are a lot of hidden trouble, such as automatic temperature control is easy come with the regulating handle on the valve body, but the handle of the design is in order to meet the automatic temperature control valve head prior to installation, temporary for system to adjust to satisfy the engineering test to test the waters, the water pressure test process is complete, to be replaced by the automatic temperature control valve head, because of its temporary, so the simple the regulating handle borrowed from the body of the original for fixed temperature control valve head common thread for screw lift.

4, let's look at the automatic temperature control valve, automatic temperature control valve is usually divided into two parts, valve body and valve head, body generally adopts copper casting or hot forging method, production of Industrial Valves head temperature sensor generally has the branch of liquid and solid, solid is divided into two kinds: one kind is preserved, memory alloy is a kind of heat. The market at present medium most popular solid sensor for paraffin, few heat memory alloy. Below are common on the market of the valve body and valve head, respectively, a simple introduction, for choosing automatic temperature control valve for reference. Temperature control valve body: copper casting advantage can casting shaped cavity complex products, mould cost is less, the production cost is low, but the disadvantage is that the casting defects, weak material compressive strength; In contrast, copper forging body due to the value of the die, forging equipment complex, the production cost is high, but it can get high strength products, casting parts are also much higher compression capacity, and effectively avoid the casting defects at the same time. Thus for body shape is not too complex, professional manufacturer with the method of hot forging production body. But there are some manufacturers with the method of casting production, it requires the user to carefully identify. The author think of the temperature control valve used in heating belongs to simple body, using hot forging is very appropriate. When choosing the valve body and a detail it should be noted that a lot of the design of the valve body in order to more simple and direct valve at the inlet and outlet of the valve body in the same axis, this design is simple, but the valve core displacement space will be affected, so this kind of valve valve core displacement is only 2 - in general 3Mm。 The increase of the valve core displacement for a dirty hvac water quality is very good, the valve core displacement is too small in the dirty hvac water and scale under the condition of serious congestion will easily happen. Temperature control Industrial Valves head: temperature control valve head temperature sensor inside filled with media generally has two kinds of liquid and solid, liquid and solid due to different production technology, manufacturers usually caused by the limitation of the scale of production, often only one process is used to produce liquid or solid valve head, only a few large producers of production at the same time two kinds of valve head to facilitate customer choice.


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