Why are vane pumps common in diesel fuel service?
Why are vane pumps common in diesel fuel service?
(OP)
I'd like to understand why vendors offering diesel fuel storage / handling / dispensing systems seem to prefer to offer positive displacement vane pumps, rather than centrifugal pumps.
I can understand the requirement for a self-priming pump when intermittently taking suction from a top entry nozzle e.g. on a self-bunded storage tank. I realise a centrifugal pump would not self-prime if priming was lost.
But are there any other reasons why a centrifugal pump would not be adequate in this type of service? The vendor can't explain; his attitude is just "that's what we normally sell".
Any thoughts?
I can understand the requirement for a self-priming pump when intermittently taking suction from a top entry nozzle e.g. on a self-bunded storage tank. I realise a centrifugal pump would not self-prime if priming was lost.
But are there any other reasons why a centrifugal pump would not be adequate in this type of service? The vendor can't explain; his attitude is just "that's what we normally sell".
Any thoughts?





RE: Why are vane pumps common in diesel fuel service?
And possibly because vanes work better with entrained air and LPGs.
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Why are vane pumps common in diesel fuel service?
With regards to "working better with entrained air and LPGs", in what way do PD pumps "work better"?
And why is there a need to even consider entrained air? Is it because diesel storage systems are intermittent in operation and have disconnectable hoses where air may possibly be introduced from time to time?
Bear in mind my frame of reference is hydrocarbon process plant which usually runs continuously, air is not introduced, and lines and pumps usually run full and under pressure.
RE: Why are vane pumps common in diesel fuel service?
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Why are vane pumps common in diesel fuel service?
While that may not be precisely important, it does make for a nicer operation.
RE: Why are vane pumps common in diesel fuel service?
Mike Halloran
Pembroke Pines, FL, USA
RE: Why are vane pumps common in diesel fuel service?
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: Why are vane pumps common in diesel fuel service?
A.
RE: Why are vane pumps common in diesel fuel service?
One more factor: When the weather gets cold and Diesel turns to wax, a centrifugal pump won't move it. A vane pump has a better chance.
Mike Halloran
Pembroke Pines, FL, USA
RE: Why are vane pumps common in diesel fuel service?