Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Maximum Pressure Piston Pumps

Maximum Pressure Piston Pumps

Maximum Pressure Piston Pumps

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,

RE: Maximum Pressure Piston Pumps

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

RE: Maximum Pressure Piston Pumps

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

There is no limit.

Flow could be a limit .



RE: Maximum Pressure Piston Pumps

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.



RE: Maximum Pressure Piston Pumps


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.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
The Great Project Profitability Debate
A/E firms have a great opportunity to lead the world into the future, but the industry’s greatest asset—real-time data—is sitting wasted in clunky, archaic ERP platforms. Learn how real-time, fully interactive dashboards in a modern ERP allow you to unlock data that will shape the future of the world. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close