By calculating the areas of circles with diameters 6 and 4 and comparing those:
pi3^2=pi9
pi2^2=pi4
pi9/pi4=9/4=2.25
So the 6 inch pipe holds 2.25 times as much as the 4 inch pipe.
A 4 inch drill pipe torque is used for fishing in small casing.
for 4 inch and ahove 1.5 multiple with pipe size
1/4 inch per foot.
12
Three-quarter inch diameter pipe refers to the outside diameter. Different pipe types of the same outside diameter usually have different inside diameters. ASTM SCH 40 pipe of 3/4 inch diameter has an inside diameter of 0.824 inches. ASTM CL 200 pipe of 3/4 inch diameter has an inside diameter of 0.930 inches because of the thinner wall.
A 4 inch drill pipe torque is used for fishing in small casing.
Every time! lol Seriously a 10-inch pipe is 5/4 of an 8-inch pipe
Pipe size refers to the diameter of the pipe (in inch).
1/2 inch for 1/2 inch pipe.
for 4 inch and ahove 1.5 multiple with pipe size
The recommended diameter for a 4 inch drain pipe in a residential plumbing system is typically 4 inches.
The volume of water in a 4-inch diameter, 1-foot section of pipe is 0.6528 gallons of water.
1/8th per inch
It is based on the flow area, which is proportional to the square of the diameter. 2 squared = 4. 4 squared = 16. So, the 4 inch pipe can take 16/4 = 4 times the volume of the 2 inch pipe. It might be less confusing if you had picked sizes other than 2 and 4. This is a rough calculation, since pipe inside diameters are not the same as nominal sizes, but close enough for most purposes.
The radius is half of the 4 inch diameter. Therefore, the radius is 2 inches.
If the old steel pipe was half inch, it is recommended to replace it with half inch copper pipe to maintain consistent water flow. Using a larger diameter pipe (3/4 inch) may lead to reduced water pressure and inefficient operation. Stick to the half inch size for best results.
1/4 inch per foot.