Reverse rotation on pumps
Reverse rotation on pumps
(OP)
If reverse rotation cannot be avoided (eg. NRV is passing), what would be the way to prevent Pumps mechanical seal damage?
In DGS for compressors there is the by-directional seals. How about the pumps?
In DGS for compressors there is the by-directional seals. How about the pumps?





RE: Reverse rotation on pumps
If it is multi spring normal seal should be ok. Are you experiencing seal failures?
RE: Reverse rotation on pumps
Most of our selection is for plan 53B which I believe will have no issue as in all cases it is working on the clean barrier fluid, but for other seal plans like 11, 13 or 31. I need to get more information and experiences especially from operators and seal manufacturers.
I remember once I found pump vendor who supplies a reverse rotation protection device but I recall it has its problems and constrains.
RE: Reverse rotation on pumps
Single coil spring seals are uni-directional.
RE: Reverse rotation on pumps