I would like to ask if it is necessary to drip oil on the sealing end face when installing the mechanical seal of a centrifugal oil pump using a 300-degree recycled wax oil medium. Is it better to drip lubricating oil or diesel?
Thread Content
Is it better to put a few drops of diesel oil or lubricating oil on the end face of the bellows mechanical seal? Is it necessary to put a few drops of oil on the end face when installing the seal?
This post was last posted by 3983596_FPPZ edited on 2019-6-26 09:49 There is no big difference between dripping and not dripping. There is no big difference. Many domestic mechanical seal factories require end-face oiling after sales, while foreign mechanical seals do not require it.
The mechanical seal manufacturer has never seen oil dripping on the sealing surface. The old fitters used to assemble mechanical seals, especially non-cartridge mechanical seals. * If you are used to dripping a few drops of engine oil on the end face and lifting one ring of the moving and stationary rings, you can often suck the other ring to prevent it from falling, so as to verify whether the sealing surface is intact. It's an empirical operation.
It should drop, right? We all know that there is an oil film on the sealing surface to reduce wear.
The pump needs to be left on for a long time when shutting down for maintenance.
It doesn't make much difference whether it's dripping or not. Just go up and spin it for a few seconds and it'll be gone.
Add a few drops to the bellows to create an oil film, mainly to prevent the sealing surface from dry grinding when manually turning the machine after the repair is completed but before feeding. Forget about the spring, so as not to stick the sealing ring off.
Normal seals are flushed, and the sealing fluid and flushing fluid are mostly diesel. Before starting the pump, the seal flushing system should be kept running. In this way, it does not matter even if it is not smeared.