Positive Displacement Pumping System
Positive Displacement Pumping System
(OP)
Good morning
We are exploring the possibility of replacing centrifugal pumps with positive displacement pumps for a slurry pumping operation (SG > 1.5 @ static head of 60m). One of key operational issues experienced with the centrifugal pumps arise after power dips/loss, resulting in production loss due to line desanding. How does a positive displacement pumping system react after a power dip/loss (desanding time, pressure build-up risk, etc.)?
Kind regards
We are exploring the possibility of replacing centrifugal pumps with positive displacement pumps for a slurry pumping operation (SG > 1.5 @ static head of 60m). One of key operational issues experienced with the centrifugal pumps arise after power dips/loss, resulting in production loss due to line desanding. How does a positive displacement pumping system react after a power dip/loss (desanding time, pressure build-up risk, etc.)?
Kind regards





RE: Positive Displacement Pumping System
Mike Halloran
Pembroke Pines, FL, USA
RE: Positive Displacement Pumping System
The potential for a high pressure developing for a PD pump is larger and flow control is different. If a brief burst of more pressure over the normal operating pressure would result in a faster re-start isn't clear, but then the pump and motor would need to be sized for that condition.
The two types are fundamentally different so you need to understand why one works or doesn't work and also what type of PD pump. Piston or reciprocating can introduce pulsation and vibration where you don't have it now.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Positive Displacement Pumping System
RE: Positive Displacement Pumping System
-Blake
"If it rotates, it vibrates."