Some questions about valves at 200°C
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I’m new to the valve industry and am currently conducting temperature verification tests on valves. If you have any questions, please ask Chuanyou for help – specifically regarding whether it is acceptable for the valve to have a slight external leakage at 200°C, or in other words, whether it is okay for smoke to be emitted (Now my experiment shows the smoke generated by heating with heat transfer oil.) The valve used in the experiment is a 3PC floating ball valve.
There are standards for internal leakage, but it seems there aren’t any for external leakage, right?
That’s the reasoning. I am currently unable to conduct a quantitative measurement of the external leakage. One can only request a “smoke-free” environment.
No valve is allowed to have external leaks; this is the most basic requirement.
Ball valves are not very suitable for heat transfer oil.
Just checking the operating temperature.
Just checking the operating temperature.
Just checking the operating temperature.
External leakage is not allowed; refer to the petrochemical standards and national standards. Valve inspection procedure.