When laying cables, how should an explosion-proof flexible metal hose be connected to a galvanized steel pipe?
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When laying cables, how should an explosion-proof flexible metal hose be connected to a galvanized steel pipe? Thank you all
Galvanized steel pipes can be connected by threads after being threaded
The answer above is correct: use a steel pipe with external threads in combination with the internal threads of an explosion-proof wire gland, and pair a flexible hose with the corresponding external-threaded connector
Is it necessary to use an explosion-proof junction box? Can it be connected directly to the internal threads of the explosion-proof hose?
Strangle it – the threaded end of the galvanized pipe should have at least 6 threads; use a flexible connecting tube, and then insert an explosion-proof gland to connect it to the instrument
It’s not necessary; a threaded connection is sufficient. For applications with higher requirements, add an explosion-proof drainage box – it can be quite useful.
I’m not too sure about this; anyway, it’s always been done this way: lol
Technical Specification for the Construction of Instrument Piping Projects in the Petrochemical Industry SHT3521-2007