What is the difference between explosion-proof flanges and explosion-proof Y-type sealing joints?
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The latter is more troublesome to use than the former; so what are the differences between the two? Or are there any differences in the situations in which they are used?
They are two different things. . . . In my personal understanding, an explosion-proof flange ensures explosion isolation from the side of the instrument’s electrical interface; an explosion-proof instrument together with an explosion-proof flange constitutes an explosion-proof system. An explosion-proof Y-type sealing joint, in combination with an explosion-proof flexible tube and an upper explosion-proof instrument, also forms an explosion-proof system. The explosion-proof gland is connected directly to the instrument’s electrical interface, preventing gases present in the field from entering the instrument and thus meeting the explosion isolation requirements. At the site, armored cables + explosion-proof gland fittings can be used ； The explosion-proof Y-type sealing joint is to be used in conjunction with an explosion-proof flexible tube; the area where the Y-shaped seal is located must be filled with explosion-proof putty to ensure sealing. The explosion-proof Y-type sealing joint, together with the explosion-proof flexible tube and flame-retardant instruments, forms an explosion-proof system.
Agree with what was said above. An explosion-proof gland is a wiring sealing device that can be opened and removed at any time; it represents a non-permanent seal. The Y-type sealing joint achieves permanent sealing by filling it with sealant. The applications of these two are different.