Setup of the air supply line for pneumatic valves
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Experts: I have a question: Can plastic pipes be used for the air supply lines of pneumatic valves in Class A workshops? Originally, copper pipes and stainless steel pipes were used; later, experts suggested that plastic pipes should not be used for the air supply pipelines of automatic valves in Class A workshops. I would appreciate it if experts could offer their guidance! !
Here, for the acceptance review of Class A workshops, experts require that all piping be made of stainless steel. The copper pipes used originally were said to not have sufficient strength, let alone plastic pipes.
We previously used plastic air supply pipes, but experts suggested replacing them with copper or stainless steel pipes. Copper pipes are being used at the moment, but there is a problem: their corrosion resistance is relatively low, and cases of copper pipes corroding and getting damaged have occurred. Stainless steel air supply pipes might be better, as they also have strength. We will use stainless steel pipes for all aspects of our future projects.
Swagelok stainless steel pipelines plus Swagelok stainless steel disassembly
It seems unnecessary\ud83d\ude02—the cost is too high
For the air supply pipes in Class A workshops, stainless steel should be used instead of plastic pipes; there is no evidence to support this. Since experts have raised this point, they should provide the relevant standard references.
1. SHT 3020-2013 Design Code for Instrument Air Supply in Petrochemical Industries 2. HGT 20510-2014 Design Code for Instrument Air Supply