Pressure in Parallel Pipes

Actually I am working on to make a gas bank assembly that can provide gas through piping to the building from outside the building.

e.g. I want to fill gas in a cylinders placed outside the building conneted in parallel. Each Cylinder is filled with a Argon having pressure of 200 bar. Outlet of the 3 cylinders is same. Will the pressure be same if gas ejaculates from all the cylinders??

Your question is not clear.

gas bank assembly that can provide gas through piping to the building from outside the building.

I want to fill gas in a cylinders placed outside the building .

However as far as I can make out, you will have banks of Ar cylinders, connected to a common pipeline which may branch inside your factory an supply to different tapping points.

Just consider it as a normal electrical battery bank and you can make out.

The outflow from each cylinder will depend upon the indifidual pipe crosssections and frictions - the leader pipe between cylinder and header.

This will depend upon the nett outflow - which may or may not equally distribute between cylinders.

Based on these The header pressure can be calculated.

Then based on this header pressure different tapping points will have their own pressure.

However if the line is properly designed, taking care that the pressure drop is minimal, you will have the pressure acceptably equal across the tapping points.

Depends on the rate of flow and pipe/orifice diameters.

At low flows the piping system may act as a plenum and pressure will be equal throughout the system. Then again, maybe not.

Who knows?

The correct war to hook up multiple bottles of gas is to connect them in parallel in to a header. the header would then have a regulator that would give you the pressure you need.

I have often had to use 100-lb propane bottles instead of a two hundred gallon tank that I needed.

I use a two-inch pipe header with a drop for each of the bottles, the gas then is exits the header through a regulator. Each drop off the header will have it's own valve. making it possible to change out bottles one at a time with out loosing gas pressure.

The bottles are connected with a flexible pigtail.

If the pipes are connected in parallel the pressure at each end of each pipe will be exactly the same as the pressure at each end of the other pipe, irrespective of the number of bends, the number of valves, etc., no matter what their cross-sectional area.