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# What is a concentric reducer used for?

## What is a concentric reducer used for?

A concentric reducer is used to join pipe sections or tube sections on the same axis. The concentric reducer is cone-shaped, and is used when there is a shift in diameter between pipes. For example, when a 1″ pipe transitions into a 3/4″ pipe and the top or bottom of the pipe doesn’t need to remain level.

What is the difference between eccentric and concentric reducers?

Concentric reducers reduce the pipe in the center. So, if you’re looking at the reducer head-on, you can see the smaller section is formed in the direct center of the larger side. Eccentric reducers reduce the pipe to the side.

### How do you calculate reducer size?

Approximate weight of a butt welding reducer can be calculated based on its two outside diameters, length and wall thickness….Where :

1. W = Weight in Kg.
2. OD1 = Large Size Outside Diameter (mm)
3. OD2 = Smaller Size Outside Diameter (mm)
4. t = Wall Thickness (mm)
5. H = End to End Dimension (mm)

What is WPB reducer?

The ASTM A234 WPB Reducer is Frequently used to fulfil the hydraulic flow requirements of the said piping system or reducers could also be used in such a manner that they can coexist simultaneously to the piping of a different size.

## Why concentric reducer is used in pump discharge?

A concentric reducer would allow an air (or vapor) pocket to form upstream of the reducer and allow air to be sucked into the pump, causing cavitation. An eccentric reducer (flat on top) would not have this same problem. Any air would be displaced (vented) when the system is first filled.

What are the two types of reducer?

There are 2 types of standard reducers available: concentric and eccentric reducers. The concentric one, which resembles a cone, is used to join pipe sections on the same axis. The eccentric type has an edge which is parallel to that of the connecting pipe, which allows it to align with one side of the inlet.

### Where do we use eccentric and concentric reducers?

Concentric reducers are used where the pipework is vertically installed and at the discharge side of pumps. Eccentric reducers are more often used when the pipework lays on a pipe rack. Because of the flat side, aligning and securely mounting the pipes to the rack is easier.

How is inch dia reducer calculated?

Welding inchdia in it is: Total joints of 4″ in it = 1(pipe with flange) + 1(pipe with elbow) + 1 (it is optional – if a pipe purchased is of 6m length then you need to weld pipe to pipe to gain 12m length spool, but if pipe purchased is of 12m length then it is not required). so inch dia = 4*3 = 12.

## How is bend weight calculated?

The weight formula is W=0.0387 * S*(D – S) * R / 1000, the unit is kg/piece….What is Formula of 90 Degree Elbow Weight

1. W means Weight.
2. S means Thickness in mm.
3. D means Outside Diameter in mm.
4. R means Radius that LR=1.5D, SR=1D.

Can we use concentric reducer in pump suction?

Concentric reducer is recommended for vertical inlet (suction) piping or horizontal installations where there is no potential for air vapor accumulation. When the source of supply is above the pump, then the eccentric reducers must be placed with the flat side down.

### Where are concentric and eccentric reducers used?

What is difference between inch dia and inch meter?

IM is considered normally to define the quantum of Piping Erection job, Insulation (besides Metre cube) and its payment terms. Inch dia in welding is nothing but the multiplication of size of joint x no of joints (of that size) which you need to weld during fabrication.