×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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

High Pressure Piston Pump

High Pressure Piston Pump

High Pressure Piston Pump

(OP)
Hello, I have a high pressure piston pump that will run LNG at 310 barg and -150°C with an inlet pressure of 7 barg. I was told that at slow speeds it would cavitate. I don't see why slow speeds would cause cavitation as slowing a normal pump down is one of the ways we solve cavitation in other pumps. Any insight would be greatly appreciated.

RE: High Pressure Piston Pump

Heat leakage through the insulation becomes a problem causing boiling of the LNG at lower flow rates.

RE: High Pressure Piston Pump

In general, piston pumps have high acceleration head requirements and depend on good pulsation suppression on the suction (and discharge) side to work well.
I would selecting a good triplex (at least) plunger for LNG if it is operating close to bubble point. Minimise dependence on pulsation attenuation with pulsation dampeners.

RE: High Pressure Piston Pump

Doesn't seem right but would need more information. Also you need to go back to the source of this information and challenge them to explain

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

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



News


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