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it would flow more easily through a narrow pipe
300mm is a very low head, you can't expect much flow through that pipe, but you can work it out from the mechanical energy balance equation.
If water is flowing through pipe, no head pressure can build up. Blocking off flow of water will create head pressure in pipe as long as pipe is vertical. A vertical column of water creates head pressure.
A water pipe.
Voltage is the force that causes current to flow through a circuit. In a similar way it isn't pressure that flows through a pipe - it is the fluid flowing through a pipe due to a difference in pressure at the entry and exit of the pipe that causes the fluid to flow through, no pressure flowing through a pipe.
it would flow more easily through a narrow pipe
Maximum PSI rating is on the outside rating of the pipe
of course liquid can flow through a 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.
It depends on the flow rate which, in turn, will depend on the pressure.
10gpm
When pushing water through "rural class B poly pipe" The maximum flow you can achieve is 80lpm. However if you have the pipe running for 100m in length you loose 30lpm through friction loss. So at the end of the 100meter pipe you would only achieve 50lpm.
That depends entirely on the viscosity of the liquid in the pipe ! Water would flow faster than oil !
Liken volt and amp to a water in a pipe. Voltage is the water pressure in the pipe and amperage is the water flow through the pipe. They are two completely different electrical units.
question cannot be answered because it depends on the water pressure
negative pressure is needed for a sustained flow of water in a pipe.
negative pressure is needed for a sustained flow of water in a pipe.