Assuming the 80 inch is the outside measurement and not the internal bore size.
Formula is Circumference = radius squared timed by pi (3.1416)
40 × 40 × 3.1416 = 5026.56 inches
Diameter = 80/pi feet
80 pi inches
If circumference = 160', and circumference = 2 x pi x r, then... 160 = 2 x pi x r 80 = pi x r 80/pi = r 2(80/pi) = diameter = 50.99'
divide it by three. that gets it close.
80 if the tiles are 12x12 - 12x12 is one square foot covering 80 you would need 80 tiles
Schedule 80 means "Pipe Wall Thickness as per Sch.80 of ASME B36.10M". Pipe 80 means "3 inch NPS or 80 mm NB pipe as per ASME B36.10M". Hope that it will answer your query adequately. Regards, Bhatta
Yes and it can be schedule 80 and schedule 120
80 gpm
With an 11/2 Mission coupling toque to 80 in pounds.
Circumference = 80*pi meters
Circumference = π*d = π*80 = 251.33 units
1000
That's 3/4" pipe, not 3.4" prehaps it would deliver more pressure through the 1/2 inch pipe than 3/4 inch. 3/4" pipe will be less restrictive over the course of the run. Otherwise, no. 1/2" Copper Pipe will do fine, since it has a smoother bore, less restrictive, no lime and rust build-up. The only reason for you to use 3/4" pipe is if you want more volume. The pressure remains the same.
Diameter of a circle = circumference/pi
It has a circumference of 251.33 inches.
Diameter of a circle = circumference/pi
80 mils =80/1000 inch, or 2/25 inch