×
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!
  • 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

Jobs

Flapper Valve/Weir

Flapper Valve/Weir

Flapper Valve/Weir

(OP)
Does anyone know who sells a flapper/weir gate that will act like a check valve but open in very low DP situations?  I'm envisioning one like a pool skimmer flapper/weir but on an industrial scale and quality and instead of floating closed it would sink closed. (i.e bottom of the pool not the surface)  I could make one but I always try to buy things off the shelf first.

I have a large concrete sump with internal concrete walls.  These walls have several large openings to allow flow back and forth to balance out the sump.  I want to add these flappers to 300mm x300mm square openings to only allow flow in one direction but they would have to open on little more than 1-2 ft head pressure.  The water is warm & clean but process water not potable.  I have 10 openings so if one failed it wouldn't be critical but I have very few maintenance oppurtunities to drain the sump so I need something very reliable or I would risk damaging several pumps and forcing an outage.

The reason is for separating out hot and warm streams of water to increase steam savings down stream in secondary processes.

-Thanks in advance.

RE: Flapper Valve/Weir

I would be VERY careful about using the headloss curves given by Red Valve. I have used Red Valve duckbill and "TideFlex" check valves and have been burned by excessive headloss.
Steve
 

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