Water flow rate half inch PVC pipe 65 psi?
10gpm
More, depending on how long you allow the flow to flow.
The answer depends on the flow rate or the water pressure, not just the pipe size.
Depends on what's flowing (gas or water or something else) and under how much pressure.
100
Insufficient information, one needs to know the pressure of the water entering the pipe, the relative heights of both ends the pipe, the pressure of the water at the discharge of the pipe, the geometry of the pipe including the number and types of turns, and the pipe material or internal friction coefficient. Then you can calculate the flow.
Given enough time the entire ocean could be pumped through a half-inch pipe.
The recommended diameter for a 2-inch drainage pipe to effectively manage water flow is typically around 4 inches.
Maximum PSI rating is on the outside rating of the pipe
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.
4324
5 Pounds per Square Inch