Can steel plate coiled tubes be used for 1.6MPa steam pipelines?
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Can steel plate coiled tubes be used for 1.6MPa steam pipelines? Can a 1.6MPa, DN800 slightly superheated steam pipeline be made using steel plate coiled tubes?
It doesn’t seem to work! ! The overheating tubes are slit, which increases safety risks. And the pressure is already quite high.
Yes, but the wall thickness needs to be calculated according to GB150
Sure, seamless steel pipes of DN800 are no longer available! The key is to conduct strength verification in accordance with GB150.
Using a slotted pipe is fine; just choose the right wall thickness.
I checked the specifications for seamless steel pipes, and the largest ones are only DN600–DN700
Yes, the key is to conduct strength checks in accordance with GB150; furthermore, 100% flaw detection of the welds is required!
It’s completely feasible to use it; such large steel pipes are already difficult to obtain. As long as the thickness is calculated based on 150 and RT testing is carried out, it can definitely be used, and its quality is no worse than that of seamless pipes.
Absolutely, what’s the temperature? Heat treatment and non-destructive testing are required after welding.
This isn’t a particularly harsh environment