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Take You to Understand What a Reducer Is?

Aug. 04, 2020

When it comes to reducers, you may not know what it is, but when it comes to the size of the head, some people should know what it is. In fact, the reducer is the size head, divided into concentric size head and eccentric size head. When the fluid flow rate in the pipeline changes (for example, increase or decrease) and the flow rate requirement does not change much, this type of pipe will be used. In order to prevent cavitation and prevent cavitation at the joints of the instrument (such as flow meters and regulating valves), it is used in conjunction with the joints of the instrument.

At present, the commonly used forming process is diameter reduction and compression, diameter expansion and compression or diameter reduction plus expansion and compression. Stamping and forming can also be used to reduce the diameter of certain specifications; the Pipe Reducer China will take you today to learn more.

Stainless Steel Reducer

Stainless Steel Reducer

Diameter reduction/expansion molding

Diameter reduction molding is to put a tube blank with the same diameter as the large end of the stainless steel reducer into a forming mold, and then apply pressure to the tube blank in the axial direction for compression, so the metal moves along the mold cavity And shrink into a certain shape. According to the size of the reducer, it can be divided into one compression molding or multiple compression molding.

Diameter expansion forming is to use a tube blank smaller than the diameter of the large end of the reducer and then use an inner die to expand the diameter along the inner diameter of the tube blank. Diameter expansion forming is prone to the situation that it is not easy to reduce the diameter of the reducer with a larger diameter. Therefore, sometimes it is necessary to combine the diameter expansion and reduction according to the needs of the material and product forming.

In the process of reducing and expanding the deformation and pressing, it is necessary to choose hot pressing or cold pressing according to different materials and required reduction conditions, but in general, it is more to choose the way of cold pressing. It may cause severe work hardening, thicker wall thickness, or hot pressing under the alloy material used.


The stamping method is to design the shape of the stamping die with reference to the size of the inner surface of the reducer, and use the die to stamp the steel plate after punching. It is also one of the commonly used methods now.