Definition of the elbow：

In piping, an elbow is a pipe fitting that changes the direction of a pipe. According to the Angle, there are 45° and 90°180° three most commonly used, in addition, according to the needs of the project also includes 60° and another abnormal Angle elbow. Elbow materials include cast iron, stainless steel, alloy steel, malleable iron, carbon steel, non-ferrous metals, and plastics, etc.

The connection modes with the pipe include direct welding (the most common way) flange connection, hot melt connection, electric melt connection, thread connection, and socket type connection, etc. According to the production process can be divided into welding elbow, punching elbow, push elbow, casting elbow, butt welding elbow, etc. Other names: 90-degree bend, right Angle bend, etc.

Technical requirements for elbows

1. Because most of the pipe fittings are used for welding, in order to improve the welding quality, the end of the car is beveling, leaving a certain Angle, with a certain edge, this requirement is also relatively strict, how thick the edge is, how much Angle and deviation range are specified. The surface quality and mechanical properties are basically the same as the tube. For the convenience of welding, the fittings are of the same steel as the pipe to which they are connected.

2. That is, all pipe fittings should be surface treated, and the iron sheet on the inner and outer surfaces should be sprayed off by shot peening treatment, and then coated with anti-corrosion paint. This is for export needs, moreover, in China is also for the convenience of transportation to prevent corrosion and oxidation, we need to do this work.

3. Is the packaging requirements for small pipe fittings, such as export, it is necessary to do wooden cases, about 1 cubic meter, this kind of box elbow number about not more than a ton, the standard allows the set, that is, a small set, but the total weight is generally not more than 1 ton. For large Y, you need a single package, like 24 ", you need a single package. The other is the packaging mark, the mark is to indicate the size, steel number, batch number, and manufacturer's trademark.

The deceitful techniques of many bad manufacturers emerge in endlessly. These are the problems that must be paid attention to when buying elbows. Hope to help you purchase actual material elbow products!

Cangzhou Shenlong Pipe specializes in producing steel pipe and pipe fittings, including elbow, tee, reducer, etc., the product quality is guaranteed, can arrange SGS inspection, and is the first choice for some large projects.