calculating Nozzle flow rate

Robert_H

I'm trying to calculate flow rate, knowing nozzle rate and pump pressure for when the charts don't give me what I need. (yeah, I'm probably nit picking).

I found a formula in the Carling oem but it doesn't work for me.

No matter how I work it, I come up with 4.64. I used to be good with a spreadsheet! maybe I inhaled too much soot today.

Signed, Confused at the keyboard

bburd

Maybe the order of operations is giving you trouble.

First, divide 180 by 100 to get 1.8.

Second, take the square root of 1.8 which is 1.34164.

Third, multiply by rated gph at 100 psi of both nozzles combined (2x6=12)

Answer: 16.1 gph.

HVACNUT

Every nozzle is +/- 10% from its stamped rating at 100 psi. Is that what you call a variable?

Robert_H

https://forum.heatinghelp.com/discussion/comment/1868699#Comment_1868699

your absolutely right, I was misreading the formula and getting the square root last.

Thank you!