Low Flow, High Pressure
Low Flow, High Pressure
(OP)
I am trying to choose a pump for the following conditions:
Flow: 2-10 gpm
Discharge Pressure: 1000 PSI
Suction Pressure: 20 PSI
Fluid: Low Viscosity (1 cp) organic
I'm assuming that it is a job for a PD pump but I'm not sure which style. We use PD pumps elsewhere in the plant but they are all in slurry service so I'm not sure what additional options become available when the stream is solids free.
Flow: 2-10 gpm
Discharge Pressure: 1000 PSI
Suction Pressure: 20 PSI
Fluid: Low Viscosity (1 cp) organic
I'm assuming that it is a job for a PD pump but I'm not sure which style. We use PD pumps elsewhere in the plant but they are all in slurry service so I'm not sure what additional options become available when the stream is solids free.





RE: Low Flow, High Pressure
RE: Low Flow, High Pressure
Mike Halloran
Pembroke Pines, FL, USA
RE: Low Flow, High Pressure
RE: Low Flow, High Pressure
RE: Low Flow, High Pressure
David
RE: Low Flow, High Pressure
We've looked at pitot pumps for a low flow high head service, and they look to be a reasonable solution. On problem is the high speed necessary to generate the head you're looking for. Often a gearbox/speed increaser is a must, and that can add complexity to the installation.
If you're sold on the pitot solution, Bullen pump is one of the OEMs that I've worked with.
RE: Low Flow, High Pressure
Regads,
RE: Low Flow, High Pressure
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: Low Flow, High Pressure
I cannot comment on piston diaphragm reliability but the pitot tube pumps generally have great reliability for clean services. The only things to take care of would be the bearings(standard PM) and the seal. On the pitot tubes I've seen, it's kind of an odd situation because the seal is on the suction side and so instead it sees suction pressure. As a result, seal life tends to be very high normally. If the organics aren't hard to seal, there shouldn't be a problem.