May non-metallic (flammable) pipes be used in Class A and B explosion-proof areas? ? What should be done if it’s necessary to use it due to corrosion issues?
Thread Content
May non-metallic (flammable) pipes be used in Class A and B explosion-proof areas? ? What should be done if it’s necessary to use it due to corrosion issues?
It’s not easy; a conductive metal wire needs to be used to draw it out, on the condition that the wire does not get corroded
Static electricity in pipes lined with steel also cannot be dissipated easily; the metal parts, however, are easy to handle
The use of non-metallic pipes in explosion-proof areas is not a problem; however, combustible materials cannot be transported using such pipes, in order to prevent static electricity buildup that could lead to fires and explosions. If corrosion prevention is a concern, the material of the pipeline can be improved; if non-metallic pipes must be used, metal wire mesh must be installed inside them to eliminate static electricity.
Of course. The most typical and common example are the pipes used in gas stations, which are double-layer plastic pipes
It can be used. In plants for fine chemical manufacturing, steel-lined PTFE or steel-lined glass pipes are often employed to address corrosion issues; as long as proper static grounding is in place, there are no problems