If a valve must be selected for high temperature conditions, the material must be selected accordingly. The materials of valves shall be able to withstand high temperature conditions and remain stable under the same structure. Valves at high temperatures must be of robust construction. These materials can be high-quality stainless steel and double-sided stainless steel. Low standard materials that will affect temperature bonding shall not be used, otherwise deformation or creep material valves shall be avoided.

High temperature conditions

Throttle butterfly valves may be stable under high temperature. The structure and body of the valve shall be considered together with the radiator so that it can be trimmed with heat setting materials. If the valve is considered, the material of the valve is not stable. If the temperature exceeds the limit that the valve can withstand, it will not be suitable for your valve.

You must consider valves with ceramic piping or some valves with cooling jackets to balance the effects of temperature conditions. These cooling jackets work with cold water circulation. Therefore, the material in the valve will be balanced without any upper limit stress.

Low temperature conditions

If the temperature is extremely low, such as – 29 ℃, the valve with low temperature resistance coefficient must be selected. In the very low temperature range of – 29 to – 196 degrees Celsius, the shell and trim materials have sufficient toughness to maintain heat and balance the effects of very low temperatures.

In this low temperature condition, you must select a valve with a filler material and a water tank section to manage the heat demand. The selection of these valves enables the temperature conditions to be maintained above 0 ℃.

Precautions at different temperatures

There is one exception to valve precautions. When the valve is closed, some liquid in the valve chamber will remain closed. As time goes by, some liquid will remain in the valve chamber. Therefore, the heat will be slowly absorbed by the atmosphere and again reach the same temperature conditions, or evaporate in the chamber of the valve.

When this happens, the volume will increase by about 600 times, which will bring incredible pressure to the valve body. This high stress or pressure on the valve body is called abnormal pressure value. This situation is uncontrollable, so it may cause serious problems of the valve and may become the root cause of the accident.

In order to avoid this undesirable experience of the valve under multiple temperature conditions, you must select a valve with a perfectly set orifice. This type of valve is usually used in this case, and this method is widely used in this field.

performance requirement

First, you must define all temperature and pressure condition requirements. You must mention the temperature and pressure range of the valve you want to operate. It will help you choose the material valve suitable for different temperatures. Suppose you want to use this valve at high temperature. In this case, it is recommended to use a metal valve because it can withstand high temperature conditions better than any other material. If the gas or liquid pressure in the valve is very high, they can also easily withstand the pressure.

In addition, select valves with a strong backflow prevention system, especially when used at high temperatures.

conclusion

There are many kinds of valves on the market, with different choices under different temperature conditions. You must define your requirements and the temperature range of the valve to be used. Then select the valve that meets the standards and conditions and meets all your requirements. The following points and tips must be considered before selecting valves under different temperature conditions.