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Can someone please help me figure this out? My Static PSI is 40, my Residual PSI is 25, My Orifice inches is 2.5 and my Pitot reading is 20. My waterline is 6 inches and my Coefficient is 0.9....What would my Flow GPM and flow at 20 PSI numbers be.....Please help

Why is it divided by a hundred?

What will be C if we are using 63mm dia and 30m hose

thanks for being simple and to point

Can i ask about the result? 0,063 psi per foot i mean how do i know in Gpm?

where I can find the formula?

And to repeat all the others - where can I get this chart?

Next time use manual focus on your recording device insteaf of automatic

Can anyone tell me the name of the formula

I think sir, before you start your calculation make sure that you gave the complete numbers of execution. You make your viewers redeculous. In English, your sentence is not complete.

I used a Flow Loss Calculator, and the numbers gave me 69.75 psi for an 1 3/4 in pipe and 200 length. (150 GPM) who is right?

C should be the loss due to the coefficient of the outlet.the roughness of the outlet

Where may I find this Chart? Thanks for any help

How you choose the diameter high dia or lower dia

here is my problem. How do you know how many gpm's you are flowing? your saying 180 gpm but how do you know that? Our gauges all work off of PSI. basically you have to know how many gpm's your nozzle flows at what PSI to even use this equation. I just answered my own question ;)

C is actually the coeffficient of the flow hydrant. Common coefficients for fire hydrants 2.5" outlets are .9(rounded), .8 (squared), and .7 (squared protruding). You wil have to reach into the barrel of your flow hydrant to feel what the inside of the outlet feels like. This information is in the NFPA pamplet.

Bunker gear in the class alrighty

Great video!!

Thanks

Thank god we have flow chart that give you all of the gpm. All you need is the size of your play pipes and what your pitot gauge pressure tell you. 10 psi on your gauge using a 1.75 play pipe will give you 288 gpm. That is using a chart and no math involved

how many cubic yards per second is 4.52 gallons per minute?

Haha I love that last part. "If you come up with 63 psi, you're probably wrong."

helpful

I have to questions, first what instrument do we use to measure the pressure in a flow test? I can't find it, and the second the diameter you are using to calculate is the hydrant diameter or the nozzle exit diameter??

Where may I find this Chart? Thanks for any help

Boom! My head just exploded.... I hate Algebra, but you made this seem pretty simple.

Is the C factor always 1?

Nice video. Check out Preplan Files cloud application - this is part of the hydrant testing module. No math!!

This guy's clothes matches a fire fighter's. Clearly explained thnx.

¿Cuál es la unidad del coeficiente C de Hazen & Williams?