Concentric Reducer

Concentric Reducer

What is a concentric reducer?

With a Frustum-like appearance, these fittings are produced with a small and larger bore to transition a large-diameter pipe to a smaller one. Thus meeting the requirements of a hydraulic flow. They are reversible and can connect smaller pipes to larger bore pipes as well.

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Where stainless steel concentric reducer used in pipeline?

These are used at the discharge side of pumps in a vertical set-up. Essentially, they join pipes together such that they remain on the same axis.

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Why carbon steel concentric reducer is used in pump discharge?

One of the main reasons for a concentric reducer to be used at pump discharge is that the energy is saved. In a pump discharge, the optimal recovery of the kinetic energy is very often overlooked. Typically the size of the discharge used is small. Hence, valves that are economical are ideally paired with carbon steel concentric reducers. Not only because they too, are economical- but because they are effective and much better than eccentric reducers at converting velocity to static pressure.

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When to use ANSI B16.9 buttweld concentric reducer?

Other than the fact that a reducer can connect two pipes with differing nominal diameters – they are preferred in vertical settings where safety is considered to be the highest priority. In vertical settings, they are anchored and aid in the transportation of abrasive liquids. They are seen in the discharge of the pump permitting a graceful transition between both the pipe and pump. Their use extends to those applications where cavitations are present. Industries like aviation and aerospace, oil and gas, petrochemical processing, and food and pharmaceutical sectors have used an ANSI B16.9 Buttweld Concentric Reducer.

Check ASME B16.9 concentric reducer dimensions, wall thickness, and concentric pipe fittings weight chart in 1/2″ to 36 inch

The function of Schedule 80 black iron concentric reducer?

While the basic function of the fitting is to connect different-sized pipes, they perform well in those applications that are prone to cavitation. They are attached near pumps in a vertical layout and prevent the accumulation of air pockets in a piping system. In vertical systems, a Schedule 80 Black Iron Concentric Reducer is anchored for safety reasons. Lastly, when used in pump discharge, they help to optimize the recovery of kinetic energy.

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How to make concentric reducer from pipe?

Using an outer die is very common while producing small or medium-sized reducer fitting. In this process, a pipe is cut and pressed in an outer die, where one end of the pipe is compressed into a smaller size.

What is ASME b16.9 concentric reducer manufacturing process?

It is possible to manufacture reducers through fabrication or welding. Seamless reducers are also available in the market. Seamless concentric reducers produced under standard ASME B16.9 are typically forged. However, seamless tubes may be used to create the fittings in size variations and profiles, depending on the standards of ASME or ASTM. In a cold-forming process, the pipe is first inspected, cut and then formed to the desired shape. After forming the reducer, it will undergo heat treatment. Shot blasting is a type of cleaning process used on the fitting to remove excess metal, or unwanted residue left over. The Concentric Reducer is then bevelled and coated with oil or anti-rust coating.

How to find the center of a titanium concentric reducer?

A concentric reducer is a proportionally shaped fitting. The slant height of the device is uniform throughout. To find the centre of a Titanium Concentric Reducer, one can simply mark the diameters of both the larger and smaller bore. The diameter endpoints for both bores can be connected by marking a straight line across its slant height. And because the frustum-shaped fitting is uniform, the above technique can be used to plot the centre of a reducer.

How to calculate surface area of aluminum concentric reducer?

The surface area of a concentric reducer can be calculated on the assumption that its shape is a Conical Frustum.

  • A = π * (r12 + r22 + (r1 +r2) * s) = π * [ r12 + r22 + (r1 + r2) * √((r1 – r2)2 + h2) ]
  • Here r1 is the radius of the smaller circumference
  • r2 is the radius of the Larger circumference
  • h is the height
  • s is the slant height

Pressure drop through seamless concentric reducer?

Since the length of a reducer is relatively shorter than its diameter, the change in the flow of media becomes abrupt. The pressure in the pipeline is disturbed. While designing a pipeline, a designer can opt to add multiple reducers in the same axis of the pipeline, thus, reducing the abruptness of the flow change.

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