Pressure during transfer between 2 pumps
Pressure during transfer between 2 pumps
(OP)
We have lubrication oil system that depends on continuous pressure to protect a pump and turbine system with jounal bearings. When power to one pump is lost a second pump turns on immediately but we have found that the system still trips on low bearing oil pressure. Are there any guidelines anywhere about the output of a pump while it is coasting to a stop? I am talking about the 1 sec or so from the time that the first pump loses power to the time that the second pump starts and speeds up enough to build-up pressure again. Is the loss of pressure almost instanteous or is there a short period of time where the coasting impeller still generates some flow/pressure?





RE: Pressure during transfer between 2 pumps
Going the Big Inch!![[worm] worm](https://www.tipmaster.com/images/worm.gif)
http://virtualpipeline.spaces.msn.com
RE: Pressure during transfer between 2 pumps
I'm not a real engineer, but I play one on T.V.
A.J. Gest, York Int./JCI
RE: Pressure during transfer between 2 pumps
Naresuan University
Phitsanulok
Thailand
RE: Pressure during transfer between 2 pumps
Mike Halloran
Pembroke Pines, FL, USA
RE: Pressure during transfer between 2 pumps
RE: Pressure during transfer between 2 pumps
RE: Pressure during transfer between 2 pumps