Concept Introduction
Eccentric different diameter pipe is a type of pipe fitting used for pipe diameter reduction. The commonly used forming process is reduced diameter pressing, expanded diameter pressing, or reduced diameter plus expanded diameter pressing. Stamping can also be used for certain specifications of reducer pipes.
In addition to using steel pipes as raw materials to produce eccentric reducers, some specifications of reducers can also be produced using stamping forming technology using steel plates. The shape of the stamping die used for stretching refers to the design of the inner surface dimensions of the reducer, and the steel plate after cutting is stamped and stretched into shape using the stamping die.
Structural characteristics
The material of the eccentric reducer is carbon steel, and the representation method is to multiply the diameter of the large end by the diameter of the small end by the thickness.
Eccentric reducer standard: national standard, American standard, British standard, and various non-standard high-pressure stamping.
The shrinkage forming process of eccentric reducer is to place a pipe blank with the same diameter as the large end of the reducer into the forming die, and by pressing along the axial direction of the pipe blank, the metal moves along the mold cavity and shrinks to form. According to the size of the reducer, it can be divided into one-time compression forming or multiple compression forming.
The characteristic of eccentric reducer is that its strength is significantly higher than that of carbon steel with the same carbon content, and it has good toughness and plasticity, as well as good weldability and corrosion resistance.
Application
1. When there is a change in the flow rate of fluid in the pipeline, such as an increase or decrease, and the flow rate requirement does not change significantly, a reducer pipe should be used.
2. At the inlet of the pump, in order to prevent cavitation, a reducer pipe needs to be used.
3. At the joints of instruments such as flow meters and regulating valves, reducing pipes are also required to match the joints of the instruments.
