Creating pressure?? Cancel The title field is required!

1. Bradley Frunchak

   

   24 posts
   
   9/10/2013 11:09 PM

   Can pressure be increased in another area by partially closing a valve??
   
   We have a looped drinking water system in the development adjacent to the golf course. Water pressure is low at the furthest and highest point on the property. Our manager believes that if a valve at the lower end of the loop is closed that this will increase the preasure at the upper end. I don't believe it will because of elevation change and friction loss and distance from the valve. He is absolutly adament this will work and won't listen to anyone elses thoughts.
   Will this work??
   Where can I find info to help with this issue??

   
   
   
   
2. Larry Allan

   

   0 posts
   
   9/11/2013 5:09 AM

   Brad, I would just do what he wants and then when it proves to be wrong you come up with a solution

   
   
   
   
3. Clay Putnam

   

   33 posts
   
   9/11/2013 6:09 AM

   I'm curious. What took longer, writing the above post or closing the valve?

   
   
   
   
4. Peter Bowman

   

   11 posts
   
   9/11/2013 7:09 AM

   I could very well be wrong, but I believe the pressure you have is the pressure you have, so, closing a valve will not change that. Closing a valve could possibly change the flow rate, which is what he's really after anyway, right? Turn on all the faucets in your house at the same time, including shower heads. The flow rate at one might change by shutting them down one at a time, but the pressure hasn't changed whether it's supplied by your city system or a well pump.
   
   http://www.ehow.com/about_5533714_water ... ssure.html
   
   or, you could get out your calculator and sit him down....http://www.slideshare.net/NonnieZ/press ... te-of-flow
   
   Probably still easier to shut off as many valves as he wants then go to the problem area and see what's the difference, if any.

   
   
   
   
5. Ashton Alan W

   
   9/11/2013 8:09 AM

   Brad,
   
   If the valve you want to close partially is on the other side of the loop, from the source, it could help... problem is that drinking fountains are probably not being used at the same time, so you won't gain anything. Maybe have someone run the fountain (with the others not in use) and close that valve slowly... I thinking you won't see a difference as you'd be throttling flow, not pressure.

   
   
   
   
6. Smith Kerry L

   
   9/12/2013 10:09 AM

   You could try talking to the local M.U.D. district. Check your static pressure first. They are required to supply a certain minimum pressure i believe.

   
   
   
   
7. Robert Crockett

   

   4 posts
   
   9/13/2013 11:09 AM

   Might consider a booster pump with a pressure tank...volume would be a factor also.

   
   
   
   
8. Steven Huffstutler

   

   11 posts
   
   9/13/2013 3:09 PM

   If closing valves created pressure, we wouldn't need pumps, would we?
   
   Regards,
   
   Steve

   
   
   
   
9. Robert Crockett

   

   4 posts
   
   9/13/2013 7:09 PM

   Steven Huffstutler, CGCS said: If closing valves created pressure, we wouldn't need pumps, would we?
   
   Regards,
   
   Steve

   
   Cla- valve

   
   
   
   
10. Steven Huffstutler

    

    11 posts
    
    9/14/2013 12:09 PM

    Robert Crockett said:

    Steven Huffstutler, CGCS said: If closing valves created pressure, we wouldn't need pumps, would we?
    
    Regards,
    
    Steve

    
    Cla- valve

    
    
    
    What are you saying? That a Cla Valve can operate without a pump?
    
    Steve

    
    
    
    
11. Andy Jorgensen

    

    1 posts
    
    9/14/2013 1:09 PM

    Robert Crockett said:

    Steven Huffstutler, CGCS said: If closing valves created pressure, we wouldn't need pumps, would we?
    
    Regards,
    
    Steve

    
    Cla- valve

    
    
    Cla-Val valves regulate flow and pressure, but does not create it.
    
    Closing the valve will increase pressure to a degree, but will drastically reduce flow. If a faucet or water fountain allows more flow through then what the valve does, pressure drops and is lost.
    
    What size pipe is it?

    
    
    
    
12. Keith Pegg

    

    0 posts
    
    9/14/2013 3:09 PM

    Pressure is pressure and flow is contingent on that pressure. If the water is not running and you measure the pressure then you have static pressure. If you start to turn on the water and create flow your end of line pressure will drop because of friction loss. If you can turn on water on the same line from two sources you may get more flow and ease some of the friction loss, maybe. If you can make pressure higher then it stands to reason flow will go up at end. The only way to raise pressure is to install a pump. A cheat that could work is a air water tank it has a chamber to hold air and the water flows into it and compresses the air chamber. If this is close to the end of the line it should make for a higher flow for a min or two. Remember your average flow will be the same but if you have some recharge time this will work. Many home well systems use this type of tank. They can range from 5 gal up to ??.
    http://www.youtube.com/watch?v=3RX8QeTbJFg
    Good Luck
    Keith

    
    
    
    
13. James Smith

    

    112 posts
    
    9/16/2013 7:09 AM

    how about giving us more information on the system.
    
    Does it have a pump and if so what size?
    
    what size pipe are you looking at?
    
    is it your irrigation system? if so closing a valve may mean using less sprinklers
    
    how much of an incline does the pipe have? this can also be called head pressure
    
    do you already have a valve to close or will it mean installing one?
    
    If it is your irrigation system, is it computerized? you may be able to program it to run less sprinklers on that end of the system, mine does and it is the lowest version of stratus offered, from 1998
    
    Remember that flow rate and pressure are two different things but each effects the other!

    
    
    
    
14. Robert Crockett

    

    4 posts
    
    9/16/2013 5:09 PM

    Andy Jorgensen said:

    Robert Crockett said:

    Steven Huffstutler, CGCS said: If closing valves created pressure, we wouldn't need pumps, would we?
    
    Regards,
    
    Steve

    
    Cla- valve

    
    
    Cla-Val valves regulate flow and pressure, but does not create it.
    
    Closing the valve will increase pressure to a degree, but will drastically reduce flow. If a faucet or water fountain allows more flow through then what the valve does, pressure drops and is lost.
    
    What size pipe is it?

    
    Might consider a booster pump with a pressure tank...volume would be a factor also.
    That's why I said a booster pump and a pressure tank Andy. Then you can regulate pressure. If you have the volume. I made a "A" in irrigation tech, done a ton of design too, however you can cheat on hydraulics for this application. No big deal really.

    
    
    
    
15. Andy Jorgensen

    

    1 posts
    
    9/16/2013 6:09 PM

    Robert Crockett said:

    Andy Jorgensen said:

    Robert Crockett said:

    Steven Huffstutler, CGCS said: If closing valves created pressure, we wouldn't need pumps, would we?
    
    Regards,
    
    Steve

    
    Cla- valve

    
    
    Cla-Val valves regulate flow and pressure, but does not create it.
    
    Closing the valve will increase pressure to a degree, but will drastically reduce flow. If a faucet or water fountain allows more flow through then what the valve does, pressure drops and is lost.
    
    What size pipe is it?

    
    Might consider a booster pump with a pressure tank...volume would be a factor also.
    That's why I said a booster pump and a pressure tank Andy. Then you can regulate pressure. If you have the volume. I made a "A" in irrigation tech, done a ton of design too, however you can cheat on hydraulics for this application. No big deal really.

    
    
    
    I'm lost. Or you are. One of us is. I know you said booster pump with pressure tank. Not sure why you felt like calling me out there.