Ring Main Pipeline System Is Extensively Used On

Should i size my ring main pump bigger than 12 5 m3 hour.

Ring main pipeline system is extensively used on. From this main line the branch lines are projected perpendicularly and they are also connected with each other. The resistance encountered increases with length of pipe the flow rate through the pipe and reduction in cross section area of the pipe. It is important that the distribution system be designed with a ring main a primary loop that is connected to the pumps so that there are two routes for water to flow in case one side gets blocked. Can i run a ring main system with multiple take off points with only one pump.

In electricity supply design a ring final circuit or ring circuit often incorrectly called a ring main a term used historically or informally a ring is an electrical wiring technique developed and primarily used in the united kingdom this design enables the use of smaller diameter wire than would be used in a radial circuit of equivalent total current. Ring main pipe size pvc is dn50 with a velocity of 1 37 m s. Current practice is to use distribution automation where operation and supply restoration in the feeder rings is done automatically by centrally controlled supervisory systems. So every street of the distributed area will get sufficient quantity of water.

A ring main is normally a loop servicing the entire distribution system not just a part of it. Water encounters a flow resistance as it travels through a pipe. This system is most reliable for a town with well planned streets and roads. Diagram 2 shows a vessel fitted with a circular line or ring main but adjusted for the twin bulkhead type of vessel.

Inspection of the pipeline system shows that the pipeline travels around the ship in the wing tanks crossing over from one side to the other. These are used for making 45º or 90º changes in the direction of the pipe run. In a circular or ring system the supply main forms a ring around the distribution area. I ve sized my pump to match the max flowrate 12 5 m3 hour.

The feeders in this system form a loop which starts from the substation bus bars runs through the load area feeding distribution transformers and returns to the. Normally used are long radius in which the centre line radius of curvature is equal to 1 1 2 times the nominal pipe size mps. The branches are connected cross wise to the mains and also to each other. This gives the advantages of ring main systems as line voltage drops are reduced at the various load substations there is a firm supply i e.

This ship is also fitted with a stripping system. Ring main distribution system a similar level of system reliability to that of the parallel feeders can be achieved by using ring distribution system here each distribution transformer is fed with two feeders but in different paths. The plan is to use a vsd to control the flow through the ring main. Ring system can also be called as circular system in which the main pipe line is provided around the city or area i e peripherally.

In high rise buildings it is mandatory that each staircase have a wet riser a vertical fire fighting pipe with a hydrant at every floor.