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Eccentric reducer is a kind of pipe fitting used in the pipe
reducing part. The commonly used forming process is reducing pressing,
expanding pressing or reducing plus expanding pressing, and
stamping can also be used for some specifications of reducer. The process of reducing forming is to put the tube blank with the
same diameter as the large end of the reducing tube into the
forming die. By pressing along the axial direction of the tube blank, the metal
moves along the die cavity and shrinks to form. According to the
size of reducer, it can be divided into one-time pressing forming
or multiple pressing forming. The expanding forming is to use the tube blank smaller than the big
end diameter of the reducing tube, and use the internal punch to
expand the diameter along the inner diameter of the tube blank. The expanding process is mainly used to solve the problem
that the reducer with large diameter variation is not easy to be
formed by reducing.
In the process of reducing or expanding deformation, according to different materials and reducing conditions, cold or hot pressing is adopted. Generally, cold pressing should be used as much as possible, but hot pressing should be used in case of thick wall or alloy steel. In addition to using steel pipe as raw material to produce reducer, partial specification reducer can also be produced by stamping process of steel plate. The shape of stamping die used for drawing is designed according to the inner surface size of reducer, and the blanking steel plate is punched and stretched into shape by stamping die. Carbon steel reducer is represented by multiplying the big diameter by the small diameter. For example, "8 × 6" means reducer with big diameter of 8 inches and small diameter of 6 inches.
Standard: GB / t19326
Material: carbon steel
Thickness:sch60, sch100, sch120, sch140, sch160, XXS, etc.
Surface treatment: anti-oil; anti-painting
| NPS | Outside Diameter at Bevel | End-to- End, H | |
| Large End | Small End | ||
| 3/4X1/2 | 26.7 | 21.3 | 38 |
| 3/4X3/8 | 26.7 | 17.3 | 38 |
| 1x3/4 | 33.4 | 26.7 | 51 |
| lxl/2 | 33.4 | 21.3 | |
| 1.1/4x1 | 42.2 | 33.4 | 51 |
| 1.1/4X3/4 | 42.2 | 26.7 | |
| 1.1/4X1/2 | 42.2 | 21.3 | |
| 1.1/2x1.1/4 | 48.3 | 42.2 | 64 |
| 1.1/2x1 | 48.3 | 33.4 | |
| 1.1/2X3/4 | 48.3 | 26.7 | |
| 1.1/2x1/2 | 48.3 | 21.3 | |
| 2x1.1/2 | 60.3 | 48.3 | 76 |
| 2x1.1/4 | 60.3 | 42.2 | |
| 2x1 | 60.3 | 33.4 | |
| 2x3/4 | 60.3 | 26.7 | |
| 2.1/2x2 | 73 | 60.3 | 89 |
| 2.1/2X1.1/2 | 73 | 48.3 | |
| 2.1/2X1.1/4 | 73 | 42.2 | |
| 2.1/2x1 | 73 | 33.4 | |
| 3x2.1/2 | 88.9 | 73 | 89 |
| 3x2 | 88.9 | 60.3 | |
| 3x1.1/2 | 88.9 | 48.3 | |
| 3x1.1/4 | 88.9 | 42.2 | |
| 3.1/2x3 | 101.6 | 88.9 | 102 |
| 3.1/2x2.1/2 | 101.6 | 73 | |
| 3.1/2x2 | 101.6 | 60.3 | |
| 3.1/2x1.1/2 | 101.6 | 48.3 | |
The pressure wall thickness is sch5s, sch10s, sch10, sch20, sch30, sch40s, STD, sch40, sch60, sch80s, XS; sch80, sch100, sch120, sch140, sch160, XXS. Carbon steel reducer can be divided into ordinary low carbon steel, high quality low carbon steel, low carbon boiler steel and low carbon vessel steel. Due to the low carbon content and good weldability of this kind of reducer, high quality carbon steel butt welding reducer can be obtained without special process measures.
Application in metallurgy and electric power industry: in metallurgy and electric power industry, coal powder, ash, mud, limestone and other metal pipelines need to consume a lot every year, of which carbon steel pipeline is the most widely used, so carbon steel butt welding reducing elbow is widely used.
Application in mining and coal industry:
(1) Mine: the pipeline of mine filling, concentrate powder and tailings transportation is seriously worn.
(2) The carbon steel butt welding reducer is required for the accepted carbon steel pipeline of ore powder.
(3) Coal: wet transportation is generally accepted in coal preparation and long-distance pipeline transportation, which requires that the conveying pipe is wear-resistant and corrosion-resistant.
(4) The carbon steel reducer can be used as an auxiliary accessory of carbon steel conveying pipe, with high economic benefits.
a. Plastic bubble bag package b.Wove bag package c.Pallet d. Customized
Our factory have high ability for production, the delivery time is 45days for small quantity, or if you are hurry for that, we can arrange and meet your shipping date.
