Pipe reducer are steel hot pressed or forged joints. The connection form is to directly weld the joints to the steel pipes. Butt welding size head generally has concentric size head and eccentric size head, materials are carbon steel, alloy steel and stainless steel.
The exported forged steel flange material conforms to ASTM A105 standard.
Pipe reducer is a pipe fitting used for pipe calibers. The commonly used forming process is reducing diameter pressing, expanding diameter pressing or reducing diameter plus expanding diameter pressing. Stamping can also be used for some specifications of reducing pipe.
a. Diameter reduction/expansion forming
The reducing forming process of the small head is to put the tube blank with the same diameter as the big end of the big head into the forming die, and press the tube blank along the axial direction to make the metal move along the die cavity and shrink forming. According to the size of the reducing pipe, it can be divided into one pressing forming or multiple pressing forming.
b. Stamping forming
In addition to using steel pipe as raw material to produce the size of the head, some specifications of the size of the head can also be produced by steel stamping process. The shape of the die used for drawing is designed according to the size of the inner surface of the head, and the steel plate after blanking is pressed and drawn by the die.
Before the size of the head adhesive, use a dry cloth to wipe the side of the socket and the outside of the socket. When there is oil on the surface, wipe it with acetone. There are the following points to pay attention to:
1, control diameter: DIN standard (DN10-DN150), 3A/IDF standard (1/2"-6"), ISO standard (with diameter of 12.7-152.4);
2. International industrial standards: DIN, ISO, SMS, 3A, IDF, etc.
3, product material: stainless steel 304, 316, 316L;
4, quality and use: the size of the head inside and outside with high-grade polishing equipment to meet the requirements of surface precision; This product is suitable for dairy, food, beer, beverage, pharmaceutical, cosmetics and other industrial fields;
5, external processing: according to user requirements to map, sample processing non-standard products;
6, connection: clamp (quick loading) type, welding type, thread (loose) type.
Pay attention to the size of the head is also suitable for pipe reducer in the environmental dust removal industry, generally made of steel plate rolling cutting and welding, pipe diameter size is different.It is usually hot rolled coil, which is used very well and can save costs.