Points that must be noted when choosing a temperature control valve

Heating and cooling technologies are undergoing changes. The temperature control level of self-operated flow regulating valves is also maintained by machinery. Self-operated temperature control valves should be able to play their main role in temperature control, saving a lot of time and labor. Heating and cooling technologies are undergoing changes. The temperature control level of self-operated flow regulating valves is also maintained by machinery. Self-operated temperature control valves should be able to play their main role in temperature control, saving a lot of time and labor.
The thermostatic valve refers to an installation of temperature conditioning (actually flow conditioning) of the device on the radiator water supply pipe. It is divided into manual temperature control valve and active temperature control valve. Automatic temperature control valve is also called self-operated temperature control valve or automatic thermostatic valve, 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 temperature control valve body. The structure of the thermostatic valve body is often the two most commonly seen two-way valves, longitudinal and angular. The two-way valve is primarily used in a two-tube system or a new single-tube system that has been specially designed.

In recent years, according to the difference between the single and double pipe systems, a special four-way valve that produces a three-way temperature control valve specifically for a single pipe system and a suitable single and double pipe system with a dark device has been developed.

There are two kinds of temperature control valves, manual and active, and there are great differences in the valve measures. The manual temperature control valve adopts a spiral lifting valve core, and the rotation of the handle is linearly displaced by the spiral. In order to comply with the unique linear movement method of the self-operating actuator of the temperature control sensor, the active temperature control valve is directly designed as a linear displacement capable of active resetting, so the two valve bodies cannot be exchanged under normal conditions.

However, there are also interchangeable and specially designed valve bodies that can be used in common, that is, a valve body using an active temperature control valve, and a suitable manual screwing mechanism for manual and active switching. This improvement is particularly suitable for China's national conditions and is of great applicability. In the current many projects, in order to save the initial investment of the pioneers, first install a valve body with active temperature control function and attach an extraordinary spiral landing handle, such as this It has completed the manual temperature control valve with 1/3 of the active temperature control valve cost (this price is basically the same as the manual temperature control valve), and gives the user the space to upgrade and proactively complete the active temperature control in the future.

Let's discuss the self-operated flow control valve. The automatic temperature control valve is divided into two parts: the valve body and the valve head. The valve body is usually produced by copper forging or hot forging. The temperature sensor of the valve head is usually liquid and solid. Points: Solids are divided into two types: one is wax and the other is thermal memory alloy. The solid sensor media currently prevalent in the market are mostly paraffin wax, and there are few thermal memory alloys.

The following is a brief introduction to the identification of the valve body and the valve head that are often seen on the market. It is used as a reference when selecting the active temperature control valve. Temperature control valve body: The advantage of copper forging is that it can forge complex products with complicated cavity, the cost of mold is small, and the cost of production is low, but the defect is more forging defects and the data withstand pressure is poor; in contrast, the copper forged valve body is due to the mold The value is high, the forging equipment is complicated, the production cost is high, but the high-strength product can be obtained, the pressure resistance is much higher than that of the forged piece, and the forging defect is also usefully prevented.

Therefore, for valve bodies with less complicated shapes, professional manufacturers use hot forging to produce valve bodies. However, some producers use the forging method to produce, which requires careful differentiation by users. I think that the temperature control valve used in the heating is a simple valve body, which is often suitable for hot forging. There is still a detail in the selection of the valve body should be noted, a lot of valve body design is more simple, the valve body inlet and outlet of the longitudinal valve are on a uniform axis, so the design is simple, but the displacement space of the valve core will be Will be affected, so this type of valve body spool displacement is usually only 2-3mm.

The choice of which temperature control valve is determined by your needs, and when you have purchased the temperature control valve, you have to do some comparison, in terms of price and quality balance.
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