i dont know.... plz tel how to calculate
Concentric swage is used for small bore piping while concentric reducer is used for large bore piping. Zach
A concentric reducer is a round reducer in which the center line remains the same,like a bell. So, anytime you are piping and you need the center to remain constant a concentric is the right choice. the other type is called an ecentric. with it one side of the reducer remains flat. if you were piping across a floor for example.
The pump discharge reducer doesn't matter if it's concentric or eccentric. It's the pump SUCTION that needs to be an eccentric reducer that is always flat on top (F.O.T.) The eccentric reducer on the pump suction reduces pump cavatation (pump catching air).
The area of a concentric reducer can be calculated by finding the areas of the two circular ends (the larger and smaller diameters) and then taking the difference between them. The formula is: [ \text{Area} = A_1 - A_2 = \pi \left( \left(\frac{D_1}{2}\right)^2 - \left(\frac{D_2}{2}\right)^2 \right) ] where ( D_1 ) is the diameter of the larger end, and ( D_2 ) is the diameter of the smaller end.
An eccentric reducer is mostly used to force air in a direction, normally towards a pump or airvalve so that it does not get trapped inside the pipework.
formula to find volume of an eccentric reducer
Very depend on the application, concentric pipe had lower pressure drop and better flow distribution. However, in many case, eccentric pipe reducer is installed on propose to allow liquid drainage from reducing in horizontal pipe.
Concentric reducers are a symmetrical, conical shaped device that enlarges or reduces a pipes diameter equally about the centerline. An Eccentric reducer is not Symmetrical about the centerline. For example, envision the flow through a gravity based pipe... picture it in terms of an elevation section view... the eccentric reducer maintains the flowline (a straight continuous line along the bottom) while the pipe size decreases from the top down.
The volume of an eccentric reducer can be calculated using the formula for the volume of a frustum of a cone. The formula is: [ V = \frac{1}{3} \pi h (R_1^2 + R_1 R_2 + R_2^2) ] where ( V ) is the volume, ( h ) is the height of the reducer, ( R_1 ) is the radius of the larger end, and ( R_2 ) is the radius of the smaller end. This formula accounts for the tapering shape of the eccentric reducer, where one end is offset.
45 degree, 90 short radius degree ,T ,elbow,cap,concentric reducer, Tee and flange
if we use concentric reducer at suction of pipe ,due to high turbulence flow of fluid ,some vapour pressure generate which generate bad effects on impeller of pump ,which decrease pump efficiency , so to avoid this problem the eccentric reducer's use in pump suction