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!
  • Students Click Here

*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


manifold piping underground storage tanks

manifold piping underground storage tanks

manifold piping underground storage tanks

I am presently trying to find information regarding the design of a manifold system for underground storage tanks. Specifically the need to maintain constant vacuum to keep a manifold bar primed. This is usually accomplished by the suction from the pumping unit, however in this case due to poor design(improper equipment)it is being suggested that the bar be 'closed' and the tank(s) be pressurized to charge the line and hope the liquid levels never fall below the product lines in the tanks. This would obviously cause the need to repeat the process when needed. This , in my opinion, is an unacceptable poor design and is being rejected at the moment. Question: Does anyone know of technical or other recommended practices for this method. Any info wouldbe greatly appreciated. Mkeith1650@aol.com mkeith@mde.state.md.us

RE: manifold piping underground storage tanks

Try using a vacuum priming unit. You can attach a vacuum pump onto the casing of the pump which will prime the liquid before the pump is started. The priming time depends on the capacity of the vacuum pump. I am not sure if your application is for lethal, toxic or explosive service and do not have details of the pumps and tanks. Contact vacuum pump manufacturers for more information. Also ensure adequate NPSH is available for the pumps

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


White Paper – Data Security and Know-How Protection
Our data is constantly exposed to the danger of being intercepted or stolen as it wends its way over global data networks. Data security measures and measures for protecting intellectual property should not, however, first be implemented when data is exchanged – companies must lay the foundation for these measures within their own organization. Download Now
White Paper – Collaboration in the PLM Context
The influence exerted by the Internet of Things (IoT) means that there is a steadily growing need for collaboration in industry. Partners from new industries and areas of application need to be integrated in cross-company business processes to ensure that the lifecycle of smart, connected products can be managed from end to end. 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