INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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.

Jobs

High contamination, low flow pressure reducing valve for particle counting application

High contamination, low flow pressure reducing valve for particle counting application

High contamination, low flow pressure reducing valve for particle counting application

(OP)
I am setting up a hydraulic oil filter multi-pass test bench. I will be using online counters capable of 1,000 psi, however in order to precisely control flow rate through the sensor I am using a Fluid Metering Inc. piston style metering pump. I've chosen the STRH pump which can only handle up to 100 psi.

The circuit I will be measuring particle counts in will be running on the order of 200 to 400 psi. As seen in SAE ARP4205 (Aerospace Fluid Power - Hydraulic Filter Elements - Method for Evaluating Dynamic Efficiency with Cyclic Flow) there is a pressure reducing valve upstream of the metering pump.

I've had little success finding a valve which can handle the extremely low flow rates (10 to 25 mL/min) and high contamination levels (likely around ISO 22/20). Do any valves come to mind for this application?

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!


Resources


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