Hydraulic calculations | Hose Reel Connection Class-II | NFPA-14 in Urdu
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- Опубликовано: 11 сен 2024
- This is a firefighting design NFPA-14 tutorial video about "Hydraulic Calculations for Wet Standpipe System, Hose Reel Connection Class-II/firefighting hydraulic calculation" in Urdu/Hindi language. It is basic learning detailed information about fire fighting systems. It is also important for Firefighting/MEP technical staff and designers. Here sharing my experience and knowledge that will be helpful to learn & grow for Engineers & Technical staff. If you found anything which is inappropriate then convey it in the comments for my information and rectification in the future.
Hydraulic Calculation Excel Sheet link: drive.google.c...
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Hydraulic Calculation Standpipe Class-III: ruclips.net/video/h70kZ3kNyAA/видео.html
धन्यवाद सर..
आपने जो eleveter की जानकारी दी. आपका बहुत बहुत सुक्रिया..
और भी एसे ही जानकारी देते रहे..
Next videos..
Now start working on elevator next part
Superb. Very well understood Sir👌👌Thanks alot👍👍
Welcome
Very clearly describe this things..
Thank you so much sir.
Thanks
Very much informative
Welcome
Very well explained
Thanks
Thank you very much for excellent explanation .. Xl sheet is very important .. for study purpose if possible please share...
Welcome...sheet link is attached in video description
واعلیکم السلام
W.Salam
Very well.plz make hydrolic calculation for sprinkler system
Insha'Allah
well explained..thanks
Welcome
Very good
Thanks Abdul Jabbar
👍
Thanks
Sir, Thank you so much for the best explanations.....But i got 2 doubts while watching your hydraulic calculation videos.
1. suppose we are using reducer Tee to connect 2.5" landing valve with 6" wet riser pipe, which size need to be considered for the reducer Tee....... is it 6" or 2.5" ?.......it is really confusing.
2. what is the hydraulic flow required for 1" Hose reel, since we are mostly using 1" hose reels connected with 2" riser pipes considering 50 gpm for each riser.....is this ok?
Welcome,
1. Friction losses of fittings to be check
2. Catalogue of valve has this information. Refer it
Because in sprinkler system you have considered 1" T for the sprinkler no. 3, 6, 9, 12 where the pipe size is 1.25" connected to 1" sprinkler pipe. Whereas in point a and b, you considered 2" T for main pipe of 2" connecting 1.25"....please sir, clarity this?
Is this OK to consider 50 gpm for class 1 stand pipe system with 1" hose reels? Single riser with 5 hose reels.... each floor 1 hose reel?
Dear sir nice explaination , but in segment b-c path in the fitting i guess there should be one elbow of 4 inch in fitting to be considered ,
Also dear sir , in case we have 10 nos of riser of class 2 FHC then in hydrulic cal do we consider total flow of pump to be
Q = q1+q2+q3+,,,,,,+q10= 100 gpm x 10 risers = 1000 gpm
Is this correct..
Like what is the limit for flow in fhc class 2 ..
As in class 1and 3 , we have limit of flow to be 1250 gpm for non splinkler system
You are right, same condition of limit used. It is my understanding but you should confirm from designer also.
Great explanation. May you tell us about Node selection? How to select node. Actually i have seen in your calculation that you have considered only remote hose reel and what about rest hose reel?
Other reels will not consider as per NFPA-14 standard requirements, only one reel consider for design point of view in one standpipe. If you consider each reel then flow will be high and then pipes, fittings, valves & pump sizes & capacity will be increased and system to be too expensive. Therefore we have to follow NFPA standards for designing.
Hi, Thank you sincerely for the video on the RUclips which is professional and helpful. I can not find the subtitle of some videos which are in Urdu language. Is there some way to find subtitles ?
I will write subtitles in English
Sir please make a video on plumbing calculation of metro station both underground station and elevated station
Ok noted
mr.Tanweer please answer
For Class II systems, the minimum flow rate for the hydraulically most remote standpipe shall be 100 gpm (379
L/min). Additional flow shall not be required where more than one standpipe is provided
5-9.2.2 Hydraulic Calculation Procedure.
Hydraulic calculations and pipe sizes for each standpipe shall be based on providing 100 gpm (379 L/min) at the
hydraulically most remote hose connection on the standpipe at the minimum residual pressure required by Section
5-7. Common supply piping serving multiple standpipes shall be calculated and sized to provide 100 gpm (379
L/min).
so max flow rate 100 gpm only not 200 gpm or more (Whatever the number standpipe )
this statement is correct "Additional flow shall not be required where more than one hose connection is provided"
It means in additional standpipe, if hose connections are more then one then one hose connection will be consider
thanks ...jazakallah tanveer bhai.please if their is sprinklers are connected to stand pipe with FHC then how to consider the hydraulic calculations for total system.please kindly give us these excel sheets and tables.we appreciate for your important info u shared with us.Thanks alot.
I will prepare video and will share with it
@@TanweerAhmed Please I need these excel formula sheet and tables regarding this hydraulic calculation of stand pipe...I will be thankful to you.
This excel calculation sheet along with table is attached in video description. You can download
sir, have any video that you are sizing and calculation of fire pump?
These are
Excellent explaining , please question if i have abuilding 4 stories with one stand pipe a two hose cabinet class 2 in each floor , now my question is the flow 100 gpm ?? and ignore second fast remote cabinet in last floor ??
As per NFPA is 100gpm
@@TanweerAhmed ok thanks
But in same case and two risers is the flow 200 gpm or ignore second riser ,
thanks very much
Each riser 100gpm as per my understanding
@@TanweerAhmed ok
Thanks for you
Welcome
1-a path each stand pipe flow has 250 gpm so can we multiple 7×250 gpm standpipe and remote pipe 750 gpm for calculation
Explained in video
sir please upload combine system design, calculation
Ok noted
if there is only Hose reel Riser (very small building of 25m height only) what Pipe Size and Pump Capacity shall be selected?
Watch my videos, everything is explained
@@TanweerAhmed I can't understand your language once I am Cambodian. And your Video can't be translated with Subtitle
Okay
If you only provided English subtitles to your videos, your views would have sky rocketed.
Very headache to write subtitles in English. Can you suggest free tool for help in this matter?
@@TanweerAhmed I am not sure, have you tried chatgpt? I have heard people use it for translation.
Hire a translator sir 😊
sir, what is the difference between stand pipe and hydrants landing valve (design and calculation)
Standpipe is vertical riser pipe and landing valve are their connection with standpipe or riser. Suggest to watch my videos on standpipes as per nfpa-14 for further understanding in detail
@@TanweerAhmed thanks
Hydraulic calculation ka exile sheet Kase mil sakta hai sir muje
My all videos where I have explained in excel sheet then I have attached excel sheet link on same video's description for free download by anyone.
Sir 200.656 GPM. we will take it as 200 or 250???
Yes
As nfpa 14 in class2 system most remote riser 100 gpm and no additional flow if more than one riser is provided ???????
NFPA-14 says like this "Additional flow shall not be required where more than one hose connection is provided"
Min. flow rate for the hydraulically most remote hose connection shall be 100gpm (379 L/min)
Max. flow required from a 1½ in. (40 mm) hose connection shall be 100gpm (379 L/min)
@@TanweerAhmed ok , so why you add flow of the second standpipe and the flow became 200 gpm
@@engsaed9445 2nd standpipe (additional riser) flow will be added 100gpm but more than one hone connection (means more hose reels) flow will not be added. Now read NFPA-14 wordings "Additional flow shall not be required where more than one hose connection is provided".
i have a project where there are 4 risers. 3 risers have class III systems( Class II hose box+ Class I Landing Valve) and the 4th riser has only class II hose connections. What will be the procedure for hydraulic calculation for this system?
Class-II is hose reel connection or hose rack connection and it's flow to be taken 100gpm
@@TanweerAhmed So my flow calculation will be 500+250+250+100= 1100 gpm?
@@yusufahmed7819 it is ok
Do you have an English version? Thank you.
Not but I will subtitles
How about the duration? How many minutes?
Duration about what?
how to do hydraulic with pipenet software..if possible then please provide
I have not used this pipenet software
I observed that the standpipe 1B is being referred to as standpipe 1A.
I don't understand, what do you want to say, kindly elaborate
On the schematic, you labelled the standpipes as A(left) and B(right). Also on the schematic the remote FHR is 1, which is on the standpipe B, but in the excel sheet is referred to as 1a.
Ohh ..
Tanveer sir i am from india and i am a big fan of ur knowledge... I learnt lot of things by ur video.. Sir please make a video on plumbing calculation of metro station (underground and elevated) and please give ur contact no also. 🙏🙏
Thanks, WhatsApp 🇵🇰+923332472721
@@TanweerAhmed thanks sir
Welcome
If any system has 25 hydrant points, how much pump capacity (HP) is required and what is the formula for calculating it?
It is not simple like your question.
@@TanweerAhmed do you have any formulas about it's calculation
Watch this video, all details are given
Can you please provide the excel sheet?
Link is attached in this video's description
Can you upload or attached this excel file for hydraulic calculation
Already I have attached link in this video description
Pls sir reply mjhe kaam sikhna hai sir pls replyy....
Ask question, if you don't know
In class-III, how to maintain the residual pressure both of 40mm & 65mm? Cause of combined connection.
As per NFPA Class-I 100 to 175psi
Class-II 65 to 100psi.
Maintain pressure through PRV (Pressure Reducing Valve)
@@TanweerAhmedTnx for your valuable reply. One thing more, Is it mandatory using prv???? Can used Class-I working pressure for Class-II without PRV?
If you are using Class-III then for Class-II must required PRV as per NPFA pressure requirements
@@TanweerAhmed Tnx you very much for your valuable information.
Welcome
Can you share link to WhatsApp group?
My whatsApp group is full. suggested to joint Telegram group "HVAC|MEP Engineering". its link given in each video description
I know all about fire alarm and fire fighting but I can't calculate gpm and bar I live in Saudi Arabia,, and as safty drasman
How can I help?
Mjhe apna student banalo sir plss
Welcome
No subtitle?
I will prepare
धन्यवाद सर..
आपने जो eleveter की जानकारी दी. आपका बहुत बहुत सुक्रिया..
और भी एसे ही जानकारी देते रहे..
Next videos..
Ok noted
👍
Thanks
👍
Thanks