Know More Risk: Differential pressure dry pipe valve risers

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  • เผยแพร่เมื่อ 22 ต.ค. 2024

ความคิดเห็น • 29

  • @SuperRasith
    @SuperRasith 5 ปีที่แล้ว +7

    Extremely good explanation 👌👌

  • @paulmaxwell8851
    @paulmaxwell8851 5 หลายเดือนก่อน

    Excellent video. Very informative!

  • @keithtynan7469
    @keithtynan7469 4 ปีที่แล้ว +2

    Thanks - I needed to know this, and you’ve explained it well.

  • @kadenkremel3863
    @kadenkremel3863 3 ปีที่แล้ว +2

    Thank you I believe you have done a really good job at explaining this

  • @TheLothoDE
    @TheLothoDE 9 ปีที่แล้ว +3

    Could you provide the link to the next video, I can not seem to find it or any information on how to perform a 2 inch drain check on a dry system. Thanks.

  • @Exploer8591
    @Exploer8591 4 ปีที่แล้ว +2

    Thank you!

  • @johnnychang4233
    @johnnychang4233 ปีที่แล้ว

    Is the pressure from the air portion contributed by the weight of the lid separating the wet and dry interface?

  • @sherif3880
    @sherif3880 6 ปีที่แล้ว +2

    very useful , thanks

  • @TheEjsc
    @TheEjsc ปีที่แล้ว

    I believe I released too much air during the monthly drain down or not fully turn off the water valve; I don’t know so I got a red light in my fire panel. Can you explain what triggered the panel light ? Was it the accelerator pushing the clapper up ( but after opening it chambers the clapper was close) or the air pressure switch.

  • @hummermusik2037
    @hummermusik2037 8 ปีที่แล้ว +3

    nice video

  • @johnquinn456
    @johnquinn456 8 หลายเดือนก่อน

    Plumber here, thank you.

  • @tamerhalmy
    @tamerhalmy 5 ปีที่แล้ว +1

    Excellent

  • @gonzalezjoel82
    @gonzalezjoel82 3 ปีที่แล้ว

    How do you set it up?

  • @asbasf2382
    @asbasf2382 4 ปีที่แล้ว

    Dose the water fill all the zones or only the zone with the fire in?

    • @caldershot9702
      @caldershot9702 4 ปีที่แล้ว +1

      ASBasf water is supplied to all the connected piping, but only come out of the head which has burst due to fire.

  • @Joey-uf4gd
    @Joey-uf4gd 4 ปีที่แล้ว

    Hi, have a question. If the dry valve is tripped, do you still have fire protection of that area. If so what is the downfall of it being tripped and not reset in a timely manner.

    • @caldershot9702
      @caldershot9702 4 ปีที่แล้ว

      Joey Winstead as long as the main control valve, water supply valve, is open, you will have protection. Unless of course the system has froze in areas. Tripped systems should be restored ASAP, or if it can’t be restored, a fire watch put in place.

    • @Joey-uf4gd
      @Joey-uf4gd 4 ปีที่แล้ว

      @@caldershot9702 Hi, thanks for the reply. Still alittle fuzzy. I understand if the main water valve is left on u still have water to the lines, but what happens if there is a fire and the system is tripped I guess I should ask.

    • @caldershot9702
      @caldershot9702 4 ปีที่แล้ว

      Joey Winstead if the system is in fact tripped, the lines will be filled with water, if the main control is still open, it will operate like a normal wet system. Of course you will not have alarms though. So you could leave the system “flooded” , but you would still need to perform an hourly fire watch, or whatever is recommended by the authority having jurisdiction.

  • @lysafabre4878
    @lysafabre4878 3 ปีที่แล้ว

    I need to know a name of a part.

  • @ronwikeheiser6706
    @ronwikeheiser6706 4 ปีที่แล้ว

    Actually expanding the intermediate chambers peruse for the air to hold the clapper down with air above to hold the water back is the true story on how a dry value works

  • @Reydejesus87
    @Reydejesus87 4 ปีที่แล้ว

    Nice

  • @leam89
    @leam89 4 ปีที่แล้ว

    How do you test the flow switch without tripping the system? Since from my understanding a periodic flow switch test is required but trip testing much less frequently.

    • @charadremur333
      @charadremur333 4 ปีที่แล้ว

      Just do both, it doesn't hurt to do extra tests!

    • @leam89
      @leam89 4 ปีที่แล้ว

      @@charadremur333 a trip test on a dry system is beyond the capability of our maintenance team. Its not easy peasy

    • @charadremur333
      @charadremur333 4 ปีที่แล้ว

      @@leam89 why?

    • @caldershot9702
      @caldershot9702 4 ปีที่แล้ว

      Dry systems have an alarm test valve for testing alarm flow switches. Otherwise you would do a throttle trip. That’s a way of tripping the system without introducing water to the whole system.

    • @malcolmdown9170
      @malcolmdown9170 4 ปีที่แล้ว

      @@caldershot9702 that’s very true. It is fed from the water below the clapper. This allows you to test the bell/water motor alarm and pressure switch together.