You speed up the pump, which increases its pressure on the solid or liquid. Narrowing the pipe does not increase the pressure or flow rate, it only increases the speed at which the liquid or gas passes by a given point.
What pressure or are you asking drainage THEN What pitch are you using
Nil. You need a pressure differential for flow to take place.
There are way too many variables to answer this.what's the head pressure?how long is the run?any 90 or 45 degree bends?what type pipe?Pipe has friction , the longer the run the more pressure that is needed to get the same flow, same with bends in the pipe or fittings.For swimming pools we normally figure we can flow 60 gpm with 2 inch pipe.but again there are things to consider.
The optimal water pressure for a pipe is typically between 40 to 60 pounds per square inch (psi) to ensure efficient and safe water flow.
question cannot be answered because it depends on the water pressure
To calculate the pressure in a pipe based on the flow rate and diameter, you can use the formula for pressure drop in a pipe, which is given by the equation: Pressure (4 flow rate viscosity) / (pi diameter2) Where: Pressure is the pressure drop in the pipe Flow rate is the rate at which fluid flows through the pipe Viscosity is the viscosity of the fluid Diameter is the diameter of the pipe By plugging in the values for flow rate, viscosity, and diameter into this formula, you can calculate the pressure in the pipe.
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.
The size of sprinkler pipe you should use for your irrigation system depends on the water flow and pressure needed. Generally, a 1-inch pipe is recommended for larger systems or areas with high water demand, while a 3/4-inch pipe is suitable for smaller systems or areas with lower water demand. It is important to consider factors such as water pressure, flow rate, and the number of sprinkler heads when choosing the pipe size for your irrigation system.
If the flow velocity remains the same the flow volume will increase by the square of the diameter ratio.(2/1.25) = 1.6 = diameter ratio1.62 = 2.56 more flow volume through 2 inch pipe compared to 1.25 inch pipe.
Depends on what's flowing (gas or water or something else) and under how much pressure.
Water flow rate half inch PVC pipe 65 psi?
The relationship between flow rate and pressure drop across a pipe is that as the flow rate increases, the pressure drop also increases. This means that a higher flow rate will result in a greater pressure drop in the pipe.