×
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

Two Flexhead connections off of a cross?

Two Flexhead connections off of a cross?

Two Flexhead connections off of a cross?

(OP)
I am doing an add relocate job and was wondering if anyone had any information on running more than one flexhead connection off of a single outlet. I want to attach them to a 1x1/2x1x1 cross with an upright head on the top and a flexhead hose off either outlet. think this bird will fly?

RE: Two Flexhead connections off of a cross?

(OP)
or maybe even attach another tee off of the side outlet with a short nipple and run the hoses off either of those ends.  

RE: Two Flexhead connections off of a cross?

That requires a calculation big time, unless there was a huge safety factor or designed to handle that demand it may not work.

Additionally just shifting one of the outlets to a new mechanical tee would take some demand off that junction but just a sliver, try that alteration in your calculation if its close.

 

RE: Two Flexhead connections off of a cross?

Calculate the system demand. Welcome to flexhead world. You are responsible for your design.

RE: Two Flexhead connections off of a cross?

Depending on the length and manufacturer you are using, you could have 35'+ of equivalent feet per drop.  Anytime you go from hard pipe to flex head, you are going to need to calculate the system.

I would also say to calc it if you were trying to hard pipe 2 sprinklers from a single outlet as well.

Good luck with it.

Travis Mack
MFP Design, LLC
 

RE: Two Flexhead connections off of a cross?

I don't see a problem if I understand the question correctly.

See sketch http://img511.imageshack.us/img511/9409/flexheadcross.jpg

The correct terminology for the fitting is 1"x1"x1"x1/2" cross and not 1"x1/2"x1"x1".  Not meaning to be picky on the fitting but it through me at first.

 

RE: Two Flexhead connections off of a cross?

It may be fine, but now you are taking 2 sprinklers from a single outlet that had 1 before.  Also, if it was hard piped previously, you are now adding the extra friction loss from the flexhead component.  I still say it needs to be calc'd.  But, that is just my opinion and is worth what you are paying for it smile

Travis Mack
MFP Design, LLC
 

RE: Two Flexhead connections off of a cross?

Travis,

Having to calc it is a foregone conclusion.
 

RE: Two Flexhead connections off of a cross?

OK.  From reading the initial post, I was thinking he was asking if it was possible without calculating it.

If the question is: Is this arrangement possible? The obvious answer is yes.  Will it work hydraulically? That will have to be determined by calculations.

 

Travis Mack
MFP Design, LLC
 

RE: Two Flexhead connections off of a cross?

Travis and SD2,

It's nice to see two guys I respect come to the same conclusion I did. It helps me keep my perspective on what's right or wrong. Thank you.
 

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