Explosion Proof Gearbox?
Explosion Proof Gearbox?
(OP)
Is there such a thing as an UL explosion proof gearbox? I have heard of UL explosion proof electric motors, but does the gearbox need to be UL rated for explosion proof in such an enviroment. I would think that it would need to be, because meshing metal gears could create a spark.
RE: Explosion Proof Gearbox?
RE: Explosion Proof Gearbox?
Thanks for the post. What is a Factory Mutual Gearbox anyway? What does that mean?
Thanks,
-Ren
RE: Explosion Proof Gearbox?
It's similar to UL Approval.
RE: Explosion Proof Gearbox?
A RA may dictate you need to use fire resistant fluids (there are disadvantages associated that type of oil). The installations I have seen, utilise standard oil.
Some UG applications use water in fluid couplings in lieu of oil.
Regards,
Lyle
RE: Explosion Proof Gearbox?
The main concern with gearboxes, pumps and other driven equipment is not so much the possibility of stray sparks generated in use, its the issue of surface temperature under fault conditions. Should the structure bcome excessively hot it may lead to auto-ignition (or flash-over) of the surrounding atmosphere.