Selection of steam pressure pipelines
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Can a 12-kilogram steam pipeline be used with a 16-kilogram valve and pipeline? I checked the standards, and it requires a pressure level that is 1.5 times higher than the actual pressure
No, at least valves of 25 kg class are required, along with SCH40 pipes
Which standard are you checking?
Temperature also needs to be checked, mainly by looking at the thermobarometer.
If it’s designed by a design institute, it will definitely be in accordance with the national standard of 25 or the American standard of 300 pounds
With this level of stress, if it’s in the 20 steel series, it’s right at the limit; 16Mn can be used instead. If you are the client, it is recommended to purchase PN25 directly, as it is difficult to distinguish between 20 steel and 16Mn during construction.
Does the national standard require that the valve pressure be 1.5 times the operating pressure? May I ask which specific standard it is? What is the standard number?
Be more careful; the minimum PN value should be 25. If something goes wrong, it will be too late