The allowable deviation of diameter (schedule 20 and greater) at any point from nominal diameter is: Under 2": +.015/-.031 2"-12": +/-1%
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
The number of fixture units that a 4-inch horizontal pipe can accommodate varies based on plumbing codes and the type of fixtures connected. Generally, a 4-inch pipe can handle around 40 to 50 fixture units, depending on factors like the length of the pipe and the specific code provisions in your area. To get an accurate assessment, it's best to consult local plumbing codes or a plumbing engineer.
40 meters is greater than 40 cm
40 by 40 feet = 1,600 square feet = 148.64 square meters.
schedule 40 is thicker than schedule 20
The allowable deviation of diameter (schedule 20 and greater) at any point from nominal diameter is: Under 2": +.015/-.031 2"-12": +/-1%
Bevel inside of sch. 80 to match OD of sch. 40
The psi rating for schedule 40 PVC pipe is typically around 480 psi.
The schedule of a pipe indicates its thickness. The higher the schedule number, the thicker the pipe will be. Shcedule 40 and schedule 80 seem to be the most common.
10
Steel pipe that is schedule 40, means that the steel pipe has a certain amount of threads on it. It also means that it can't be longer than about 10 feet.
The schedule value refers to the thickness of the wall of the pipe; the bigger the number (schedule) the bigger the wall thickness is of the pipe. The thickness is relative to the diameter of the tube/pipe an the application it is being used in.
The recommended pressure rating for 1.5 inch schedule 40 pipe is 130 psi.
Not plumbing pvc pipe, but pvc pipe made especially for wiring.
150
PVC stands for Polyvinyl Chloride. The 40 means schedule 40, refers to the thickness of the walls of the pipe.