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As a customer, how to judge the quality of the PTFE lined butterfly valve?

Posted by Bundor valve
When we buy the PTFE lined butterfly valve, it is impossible to test the sealing performance of the PTFE lined butterfly valve by ourselves. The only standard that can be judged is from the appearance. The valve leakage is divided into external leakage and internal leakage. External leakage is generally installed It will be discovered at a time that internal leakage can only be discovered when the maintenance is stopped. But this time has caused the loss of the project and found it was too late.



So how can we judge the quality of the PTFE lined butterfly valve? How can I choose a better quality PTFE lined butterfly valve? Bundor Valve provides you with some suggestions for your reference.

1. Observe whether the lining layer of the PTFE lined butterfly valve is clean and transparent. Do not choose the yellow-lined butterfly valve. The yellowing may be secondary fluorine plastic, but it is not absolute, so it is best to choose a clean and transparent lining. In addition, we must pay attention to distinguish between the true color of the valve body or the black color of the fluoroplastic itself.

2. Observe whether there is a relative gap between the connection parts of the upper valve body and the lower valve body of the PTFE lined butterfly valve. Why is there a gap? Because the PTFE lined butterfly valve will wear out during use, internal leakage will definitely occur over time. As long as there is a gap in the connection part, the connection between the upper valve body and the lower valve body can be tightened and resealed.

3. Whether the valve shaft of the PTFE lined butterfly valve is tightly sealed with the upper and lower seals of the valve body depends on the sealing material and form.

The above are the aspects that Bundor Valve provides you to judge the quality of the PTFE lined butterfly valve. The quality of the butterfly valve is subject to the factory test pressure. But with these points, at least you will not be deceived by unscrupulous manufacturers. The PTFE lined butterfly valve products of Bundor Valve are all carefully manufactured with high-quality raw materials. If you need the high-quality PTFE lined butterfly valve, please contact Bundor Valve for more product information!