Waterproofing issue with explosion-proof hoses used for instrumentation equipment
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The wiring tubes for the instruments are connected to the instrument equipment using explosion-proof hoses; how can waterproofing be achieved?
These days, explosion-proof flexible hoses are generally no longer used; instead, explosion-proof sealed clamping joints are employed. For galvanized pipes, protective covers are sufficient to ensure explosion-proof and waterproof properties. I hope it will be accepted; please provide the best answer!
The instrument’s electrical interface is equipped with an explosion-proof plug; once the flexible protective tube connector is tightened, this plug serves to provide sealing and waterproofing.
Keep an eye on the construction workers, otherwise the rubber stoppers will disappear somewhere.
Currently, in many of the bypass wiring tubes used by construction companies to connect instruments, explosion-proof plugs are not used; as a result, water always gets into the instrument covers when it rains, causing short circuits in the instruments. It is best to connect the bypass tubes from the side or below the instruments during installation, and to use explosion-proof plugs or sealant to prevent water from entering the instruments. . . But these days we use gland fittings more often instead of bypass wire ducts. It can effectively prevent water from entering the instrument. :lol
In our factory, we use metal-wrapped pipes covered with galvanized pipes; at the joints on both sides, white tape is used for wrapping, and finally the surface is painted, ensuring durability and preventing detachment.
It’s all Gran heads these days; explosion-proof hoses are just too basic. Agree with what was said above; the downside of this compared to Gran Head is that it’s the construction team who does the work, so it’s difficult to carry out inspections. You won’t even realize the rubber plugs are missing – you need to check each one individually.
We’ve also had several instances of water intrusion already
In areas with high temperatures and high corrosion, flexible pipes are recommended; for normal operating conditions, gland fittings will suffice. As for what gland fittings are, you can find out by searching on Taobao~~
In terms of Gran Head, can we simply omit the wire protection tube? Won’t the cable be exposed then?