Commercial gas Test

Jalen_Jalen2006

longest length method, if you add up your total length which is: your straight path to the most remote outlet all of those lengths all together. What if you get a number not within range of the table. Do you go up or down, so if I get let’s say 82 and the table is 80 or I get 65 and the table says 60? Thank you.

EBEBRATT-Ed

Just use the longer length. If you use the branch method the main stays the same but the branches can be smaller.

mattmia2

if you have 63 ft you have to use the 70 ft row, if i understand which table you are using. there is also an equation to calculate the pipe size exactly from the flow, pressure drop, ad length.