Issues regarding wire conduits in explosion-proof environments
Thread Content
I would like to ask why galvanized steel pipes used for low-pressure fluid transmission are employed as wire conduits in explosion-proof environments? Is it for voltage resistance? How should the wall thickness be chosen? Should it be determined based on the pressure resistance requirements? Can stainless steel be used?
In explosion-proof environments, galvanized steel pipes used for conveying low-pressure fluids are typically employed as wire conduits, as these pipes possess properties such as corrosion resistance, rust prevention, and oxidation resistance, making them safer and more reliable in use. The selection of wall thickness should take into account parameters such as the pressure, flow rate, and temperature of the medium inside the pipeline, in order to ensure that the pipeline can withstand the pressure of the internal medium and remain safe and reliable. Stainless steel can also be used; it has advantages such as corrosion resistance, high temperature tolerance, and high strength. However, its price is higher than that of galvanized steel pipes, so the choice should be based on actual circumstances. .
Yes, it’s for withstanding pressure; stainless steel can certainly be used. Choose between 304 and 316 as you see fit; if that doesn’t work, use HC
The wall thickness is selected based on the temperature and pressure parameters of the medium; in this case, it’s a cable, so how should it be chosen?
Stainless steel is used in specific industrial applications, as required by the clients
Understood. If the client requests the use of stainless steel conduit, we need to select the appropriate type of stainless steel and wall thickness based on factors such as the electrical parameters of the cables and the ambient temperature. Generally, stainless steel materials have advantages such as corrosion resistance, high temperature tolerance, and high strength, as well as a smooth surface, making them suitable for environments with high hygiene requirements; however, their price is relatively high. When selecting stainless steel materials, it is also necessary to take into account costs related to construction and maintenance, to ensure that the entire solution is feasible and economically viable. .
Also, I’m not sure what kind of pressure the voltage tolerance can handle, or what the specific pressure level is
Regarding the voltage resistance of wire conduits in explosion-proof environments, their voltage rating depends on the specifications and wall thickness of the steel tubes used. In actual projects, calculations and selections should be made based on specific circumstances. Generally, the greater the wall thickness of steel pipe material, the stronger its pressure resistance will be. When selecting a product, it is necessary to take into account parameters such as the flow rate, temperature, and pressure of the medium inside the pipeline, and make the choice in accordance with **relevant standards to ensure the safety and reliability of the pipeline. .
Hello, I’ve just checked – this wall thickness is required so that threads can be formed on it. Is that correct? For electrical applications, there is a requirement that the wall thickness must be no less than 1.5 mm; this is a requirement for ordinary applications. The standard parameters manuals for electrical use specify the wall thickness requirements corresponding to various pipe diameters. However, these requirements generally apply to galvanized steel pipes, so I’m not sure about the purpose of this wall thickness requirement, and it’s difficult to apply the values given in the manuals to the wall thickness requirements for stainless steel pipes
For standard national specification pipes, it isn’t necessary to use thicker versions; the main requirement is corrosion resistance. As for conduit used in environments with strong acids and alkalis, aluminum pipes are used instead of stainless steel pipes, as far as I know
This post was last edited by hfrs on 2023-4-18 at 16:16 :)