After the valve is closed for 4-6 hours, use an infrared temperature measuring instrument to measure the temperature of the valve stem (near the valve body) or the metal temperature 150mm downstream of the valve body. If it is greater than 70°C, it is regarded as “internal leakage”. This judgment method is applicable to most internal leakage valves.
Seal elements are frequently used sealing parts for machinery and equipment, and are materials that play a sealing role. From this definition, it is not difficult for us to know how important the seal element is, so how to install the seal element is worthy of our attention. The correct installation can ensure the sealing performance and make the equipment run smoothly, otherwise it will damage the sealing seal element. Next, let’s take a closer look at what should be done.
The materials for manufacturing valve parts should be selected according to the following factors
1. The pressure, temperature and characteristics of the working medium.
2. The force of the part and its function in the valve structure.
3. It has better manufacturability.
4. If the above conditions are met, there must be a lower cost.
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