Maximum Pressure Piston Pumps 1

[CARF]

Hi all,

What is the maximum pressure piston pumps can produce?
I calculated we need up to 200 bar to pump our very viscous product at the required flowrate trough a TNT heat exchanger.

Any experience?
Any manufactures?

How to feed the pump with the viscous stuff?

Thanks for thinking with me,
CARF

 

[abcmex]

CARF,
I have seen piston pumps producing 200 bar. To cope with the feed problems they had two centrifugal pumps in series as booster. Perhaps with Lewa you will find a reliable solution
RGS

 

[pardal]

Piston pump could build up as much pressure it can resist.

There is no limit.

Flow could be a limit .



Pardal

 

[smckennz]

You may want to look at the injection systems used for moulding plastics. some are a cross between a screw (for feeding) and a piston (for pushing).
With that sort of pressure, your heat transfer coefficient is probably just terrible. Are you sure recirculation or heated agitation will not work better?
It is difficult to know what to suggest without some idea of inlet and outlet viscosities, flows etc.

Cheers

Steve

 

[oilmonger10000]

Care,

we are missing your Q's (flow) here. what kind of flow are you looking for here. this will determine your HP (power) req'ments. As far as pressures, 1000 bar (14,500 psi) is nothing. Granted, you would move from piston and liners to a plunger and packing arrangement.(pistons and liners arent good for service +7500 PSI) with piston/plunger pumps, your pressure capabilities are dependant on the "road load", which is the amount of force the crankshaft can take before fatigue and failure. The biggest drawback to piston/plunger pumps is the initial costs, as they tend to be more. the plus side is the efficiencies 85-95% generally speaking, are far superb to multistage centrifugal pumps. It will be cheaper to own in the long run.


as far as suppliers, National Oilwell has the racquet on the pump line....2-2250 HP. These are not "process pumps", per say but O and G pumps. it might not be your fit....bit if its pressure you want.