How to size Plumbing Water pipes using Fixture Units

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  • เผยแพร่เมื่อ 24 ธ.ค. 2024

ความคิดเห็น • 67

  • @je-niseghana7377
    @je-niseghana7377 ปีที่แล้ว +7

    This is by far the most concise and precise pipe sizing video I have come across. Thank you for sharing.

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว +1

      You're welcome. Thanks for watching.

    • @je-niseghana7377
      @je-niseghana7377 ปีที่แล้ว

      would be glad i f you could provide a little info on how to size the individual pipes to each fixture unit@@MEPAcademy

  • @DontLookBehindYou1
    @DontLookBehindYou1 11 หลายเดือนก่อน

    From this video, i also learned...
    I would like my plumbing to look more like the pictures... That stuff in the beginning was on point

    • @MEPAcademy
      @MEPAcademy  11 หลายเดือนก่อน +1

      Thanks for watching.

  • @micahjones1049
    @micahjones1049 10 หลายเดือนก่อน +2

    WOW you put it all in one place.

    • @MEPAcademy
      @MEPAcademy  10 หลายเดือนก่อน

      Glad you liked it. Thanks for watching.

    • @yakta80
      @yakta80 8 หลายเดือนก่อน

      @@MEPAcademy good

  • @will_hunt_music
    @will_hunt_music ปีที่แล้ว

    Awesome video thanks!

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว

      Glad you liked it! Thanks for watching.

  • @mrglobul12
    @mrglobul12 21 วันที่ผ่านมา

    Phenomenal video. I have a question about the last part concerning the psychrometric chart. You arrive at 2-1/2". Is that size for the utility-owned domestic water main? If so, is Table E201.1 'Minimum Size of Water Meters, Mains, Distribution Piping...' for the supply pipe from the meter to the building? I arrive at different values using both charts and am a bit confused.

  • @jMoeBeats
    @jMoeBeats 9 หลายเดือนก่อน +1

    If I have a building with 8 floors and each floor has 4 apartments, will I create a table like this for each apartment on each floor?

    • @MEPAcademy
      @MEPAcademy  9 หลายเดือนก่อน +1

      When designing the water supply system for a building with multiple floors and apartments, it's essential to consider the water fixture units (WFU) for each apartment on each floor. However, creating a separate WSFU table for each apartment on each floor may not be necessary. Instead, you can consolidate the fixture units for all the apartments on a particular floor into one table for that floor.

    • @jMoeBeats
      @jMoeBeats 8 หลายเดือนก่อน

      @@MEPAcademy when we design a pipe size as per IPC and for example the pipe size is 1 inch, ( is 1 inch is the nominal diameter or outside diameter?) if i want the pipe size in mm not inches, the diameter will be Nominal diameter or Outside Diameter?

    • @MEPAcademy
      @MEPAcademy  8 หลายเดือนก่อน

      @@jMoeBeats 1" is the Nominal pipe Size. The Outside diameter of copper pipe is always 1/8" larger than the nominal size, so 1" NPS equals 1-1/8" OD. In metric this would be 25mm Nominal, and 28.58mm OD

    • @jMoeBeats
      @jMoeBeats 8 หลายเดือนก่อน

      @@MEPAcademy I’m talking about PPR pipes, if the pipe diameter after sizing is 1 inch, the 1 inch is Nominal ? I work for nominal only?

    • @jMoeBeats
      @jMoeBeats 8 หลายเดือนก่อน

      Okay i got you, if the the Outside diameter of copper pipe is always 1/8" larger than the nominal size, then what about PPR pipes?

  • @viniciusbraga5846
    @viniciusbraga5846 ปีที่แล้ว +1

    That’s an awesome video ! Thanks for sharing it

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว

      You're welcome. Thanks for watching.

  • @dukati3499
    @dukati3499 3 หลายเดือนก่อน

    Thank you for the information I was wondering to know what’s the WFSU on the bath thank you

    • @MEPAcademy
      @MEPAcademy  3 หลายเดือนก่อน

      Per the UPC there are 4 WSFU for a bathtub.

  • @josedavidsanchez7452
    @josedavidsanchez7452 ปีที่แล้ว

    Hello, great video. I have a question in the min 7:07 when you select the 35psi for the biggest pressure lost but the water closet is not the remote fixture it will be the lavatory. This is ok because the water closet need 35psi and the lavatory just 8psi?

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว

      Correct, the most remote, but also the most demanding since they are adjacent to each other. If only 8 psi was chosen, there might not be enough pressure to operate the flushometer on the water closet.

  • @JC-ei7us
    @JC-ei7us 9 หลายเดือนก่อน

    Hi there, grate content!! Question. Should I use the total WSFU or just the cold value when I am calculating a booster pump for 20 stories residential building with the water heater on the roof? When should I use the cold and/or the hot WSFU value?
    Thank you

    • @MEPAcademy
      @MEPAcademy  9 หลายเดือนก่อน

      In a 20-story residential building the hot water demand may be significant due to the vertical distance that the hot water needs to travel to reach the upper floors. Therefore, it's essential to consider both the cold and hot WSFU values when sizing the booster pump to ensure adequate water pressure and flow rate throughout the building, especially on the upper floors.
      Additionally, factors such as pipe size, pipe material, pressure loss, and system design should also be taken into account when sizing the booster pump to ensure optimal performance and efficiency of the water distribution system in the building. Consulting with a licensed mechanical engineer or a qualified professional is recommended to ensure that the booster pump is properly sized and installed to meet the specific requirements of the building

  • @Bigbloweronme
    @Bigbloweronme ปีที่แล้ว

    How do you determine how many FU the clean outs are and also how do you factor in the water heaters

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว

      Clean-outs are figured when designing the waste system and are required by code to be located at various points on the system. The water heater doesn't add any fixture units as it's used as a source of heat. FU are used to allocate a usage factor to fixtures where water is used for various purposes.

  • @HiLoT4
    @HiLoT4 ปีที่แล้ว

    I have a question sir, it’s look like there no mention about hose bib in fixture unit. So in design landscape irrigation system, what fixture value should I use to determine ?

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว

      Each code may differ slightly, so you should look at your local code. For example, the CPC 2019 (Table 610.3) states that the first Hose Bibb should be 1/2" in size, and accounts for 2.5 Water Supply Fixture Units (WSFU), while each additional hose Bibb you would add only 1 WSFU.

    • @HiLoT4
      @HiLoT4 ปีที่แล้ว

      I use IPC sir, I understand there is slightly different. However is there detail relates to information you mention above in IPC, sir.

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว +1

      @@HiLoT4 I don't believe the IPC list hose bibbs, in which case you are instructed to use another fixtures value based on similar usage type.

  • @OpenMindedForever
    @OpenMindedForever 8 หลายเดือนก่อน

    WSFU is calculated for both the hot and cold if the fixture will receive h/c/water -- not just the cold?

    • @MEPAcademy
      @MEPAcademy  8 หลายเดือนก่อน

      The example used the cold water supply as that's where the city pressure is derived from, and so it is the starting point for our calculation. The hot water will also need to have its fixture units counted and sized accordingly.

  • @just2music430
    @just2music430 8 หลายเดือนก่อน

    Thanks for showing me the way!!!!

    • @MEPAcademy
      @MEPAcademy  8 หลายเดือนก่อน

      Any time! Thanks for watching.

  • @LovelyChristineCahiles
    @LovelyChristineCahiles ปีที่แล้ว

    very interesting video and can earn more knowledge on plumbing works.

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว

      Thanks for watching.

  • @jbtalavera100
    @jbtalavera100 4 หลายเดือนก่อน

    So the meter and the riser would be size 65mm? How about the size of the horizontal branch that has a length of 85ft? Will i size these branch based on its WSFU which is 59.5 WSFU?

    • @MEPAcademy
      @MEPAcademy  4 หลายเดือนก่อน

      Yes, everything is sized based on the amount of Fixture Units that pass through every section of piping.

  • @MKOMKONNNN
    @MKOMKONNNN 2 หลายเดือนก่อน

    there are no private lavatories ?

    • @MEPAcademy
      @MEPAcademy  2 หลายเดือนก่อน

      The example is of a small commercial building.

  • @md.rumesheikh5463
    @md.rumesheikh5463 ปีที่แล้ว

    Really appreciate
    Nice work man.Thank you.

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว

      My pleasure. Thanks for watching.

  • @gholamalialmasi8906
    @gholamalialmasi8906 หลายเดือนก่อน

    thanks it was very nice

    • @MEPAcademy
      @MEPAcademy  หลายเดือนก่อน

      Thanks and welcome

  • @yousifrustom5805
    @yousifrustom5805 7 หลายเดือนก่อน

    Very useful video thank you

    • @MEPAcademy
      @MEPAcademy  7 หลายเดือนก่อน

      Glad it was helpful! Thanks for watching.

  • @commonmantalks3236
    @commonmantalks3236 7 หลายเดือนก่อน +1

    Can you attach plumbing code

    • @MEPAcademy
      @MEPAcademy  7 หลายเดือนก่อน

      You can find various versions of plumbing codes here. up.codes/code/international-plumbing-code-ipc-2021

  • @Felipegorr
    @Felipegorr ปีที่แล้ว

    Great video! Just one question.. after I size the main distribution pipe within the building, how do I design the branches? or should I keep the main size throughout and only modify for the fixture's rough-ins?

    • @MEPAcademy
      @MEPAcademy  ปีที่แล้ว +1

      There is a minimum size usually found in a table of your local code. See IPC Table 604.5 or use this link to view table. codes.iccsafe.org/content/IPC2021P1/chapter-6-water-supply-and-distribution#IPC2021P1_Ch06_Sec604.5

    • @Felipegorr
      @Felipegorr ปีที่แล้ว

      @@MEPAcademy you guys rock! Thank you so much.

  • @devonbarley1
    @devonbarley1 10 หลายเดือนก่อน

    Why when totaling wsfu for our lavs we only accounted for 9 lavs each valuing 1.5 wsfu for cold. Why not hot

    • @MEPAcademy
      @MEPAcademy  10 หลายเดือนก่อน

      Great questions. We only covered the Cold Water line. The same process of counting fixture units would apply to sizing the hot water.

  • @devonbarley1
    @devonbarley1 10 หลายเดือนก่อน

    Great video

    • @MEPAcademy
      @MEPAcademy  10 หลายเดือนก่อน +1

      Thanks for watching.

    • @devonbarley1
      @devonbarley1 10 หลายเดือนก่อน

      Is there anyway to schedule a tutor session.

    • @devonbarley1
      @devonbarley1 10 หลายเดือนก่อน

      Also where can i get that sheet you used I had one at one time.

  • @MKOMKONNNN
    @MKOMKONNNN 2 หลายเดือนก่อน

    i think this is a commercial chart

    • @MEPAcademy
      @MEPAcademy  2 หลายเดือนก่อน

      Correct, this is for a small commercial building.

  • @steven7650
    @steven7650 11 หลายเดือนก่อน +3

    There's no such thing as a plumbing engineer. Any engineer with awareness of fluid dynamics and experience would do, most likely this will be a mechanical or civil engineer.

    • @MEPAcademy
      @MEPAcademy  11 หลายเดือนก่อน

      There are Engineers that specialize in Plumbing and subscribe to ASPE, the American Society of Plumbing Engineers. Here is their website for those interested. www.aspe.org

    • @steven7650
      @steven7650 10 หลายเดือนก่อน

      Ah fair I was thinking accredited programs, There is not ABET approved track for plumbing specifically at the university level. @@MEPAcademy

    • @MarkPalmer-ed7jc
      @MarkPalmer-ed7jc 10 หลายเดือนก่อน

      I’m civil engineer and Jsut today I wanted to know if our I on-site lead service pump has the capacity to pump extra peak demand of a proposed new commercial building and I got all my WSFU and got my peak demand and got my pump curve and compared with existing vs proposed ans yes our pump can meet new demand- presented my findings to my PM…..her response”why r u doing this? This is a MEP job. I was like saying in my mjnd listen I can read and do math and I’m an engineer- we r not redoing the wheel here.
      Yes civil stays outside the building but our pumps are outside the building and I need to know if we need new pumps or not.
      This is basic engineering

    • @MEPAcademy
      @MEPAcademy  10 หลายเดือนก่อน

      You're correct. It's not rocket science, and if you have documented what's required using basic engineering principles, then titles or degrees don't matter. As a civil engineer you are more than qualified to determine the project requirements. Good luck.@@MarkPalmer-ed7jc

    • @steven7650
      @steven7650 10 หลายเดือนก่อน

      Right I think like medicine the over specilization makes people forget there's a base level of knowledge we all have. Would I try to design the pilings for a skyscraper, no but i'm perfectly capable of doing a quick soil test for a deck and consulting the bearing charts @@MarkPalmer-ed7jc