Should I use a heat-resistant valve?
Thread Content
The condensate temperature is ≤150℃, and an ordinary butterfly valve is installed in the pipeline. Is it necessary to replace it with a heat-resistant valve?
Medium temperature valve 120℃≤t≤450℃ Normal temperature valve -40℃≤t≤120℃ Select according to the highest temperature
The operating temperature of ordinary butterfly valve EPDM/PTFE is less than 135 degrees, which is still theoretical. It is recommended that you change it and use a high-temperature fluororubber sealing ring. H-VITON.
I agree with the third floor's opinion. It is better not to use ordinary butterfly valves, but to use high-temperature butterfly valves such as metal-sealed butterfly valves. In order to reduce maintenance and increase service life, the theoretical temperature should be discounted by 60-70%.
See if it works at 150°C for a long time, or if the temperature is near 150°C for a short period of time. If it's long term, I feel like it should be replaced.
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Generally, a hard-sealed butterfly valve will suffice. The temperature is not too high.