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Eccentric Reducer in the Category of Pipe Reducers
Release time:
Sep 29,2021
When it comes to reducing pipes, many people might not be familiar with them, but most of you have probably heard of “reducing tees.” A reducing pipe is simply a type of reducing tee, which can be further classified into concentric reducing tees and eccentric reducing tees. These fittings are used in situations where the flow rate of the fluid in a pipeline varies—either increasing or decreasing—but where the required flow velocity remains relatively stable. They’re also commonly employed at pump inlets to prevent cavitation, as well as at connections to instruments such as flow meters and control valves, ensuring proper alignment and compatibility with the instrument’s fittings. Currently, the most common forming processes for reducing pipes include diameter-reducing compression, diameter-expanding compression, or a combination of both—diameter-reducing followed by diameter-expanding compression. For certain specifications of reducing pipes, stamping can also be used for fabrication.
When it comes to reducers, many people might not be familiar with them, but most of you have probably heard of “reducing tees.” A reducer is simply a reducing tee, which can be further classified into concentric reducers and eccentric reducers. These fittings are used in piping systems when the fluid flow rate changes—either increasing or decreasing—but the flow velocity needs to remain relatively stable. They’re also commonly employed at pump inlets to prevent cavitation, as well as at connections to instruments such as flow meters and control valves, ensuring proper alignment and compatibility with the instrument’s fittings. Currently, the most common forming processes for reducers include diameter-reducing and -increasing compression, or a combination of both—first reducing the diameter and then expanding it. For certain sizes of reducers, stamping can also be used for fabrication.
Eccentric reducer:
An eccentric reducer is a pipe fitting used at locations where pipe diameters change. The commonly employed forming processes include reduced-diameter pressing, expanded-diameter pressing, or a combination of reduced-diameter and expanded-diameter pressing. For certain sizes of reducers, stamping can also be used for forming.
In addition to manufacturing reducers from steel pipes, eccentric reducers of certain specifications can also be produced using steel plates via a stamping and forming process. The shape of the die used for stretching is designed based on the dimensions of the inner surface of the reducer; after the steel plate is cut to size, it is stamped and stretched into shape using this die.
Structural features:
The eccentric reducer is made of carbon steel, and its specification is indicated by the large-end diameter multiplied by the small-end diameter multiplied by the wall thickness.
Eccentric reducer standards: national standards, American standards, British standards, as well as various non-standard high-pressure stamped fittings.
The reducing-diameter forming process for eccentric reducers involves placing a tube blank—whose diameter is equal to that of the larger end of the reducer—into a forming die. By applying axial pressure along the axis of the tube blank, the metal is forced to flow into the die cavity and undergoes contraction and shaping. Depending on the magnitude of the diameter change in the reducer, the process can be carried out in a single pressing step or in multiple pressing steps.
The eccentric reducer is characterized by significantly higher strength than carbon steel with the same carbon content, as well as excellent toughness and ductility, good weldability, and superior corrosion resistance.
Application:
1. When the flow rate of the fluid in a pipeline changes—whether increasing or decreasing—and the required change in flow velocity is relatively small, a reducer pipe should be used.
2. At the pump inlet, a reducer pipe should be used to prevent cavitation.
3. At the connection points with instruments, such as flow meters and control valves, reducer fittings are also required to ensure proper alignment with the instrument connectors.
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