Carbon Steel Welded Flanges Forged Butt Welded Flanges PN25 DN100

Carbon Steel Welded Flanges/Forged Butt Welded Flanges/Flanges/Flanges/Flanges PN25 DN100

Flange with neck butt ring loose sleeve
Loose flange welding ring loose sleeve neck flange, welding ring loose sleeve plate flange, flat welding ring loose sleeve plate flange, plate turned loose sleeve flange, in addition, in order to meet the needs of the device after locking, there are holes in the rod, these holes can make the bolt vibration not to loose. Some flange bolts without thread smooth rod to be made thin, called thin rod flange bolts. This flange bolt is conducive to the connection of variable force. There are special high-strength bolts on the steel structure, the head will be larger, and the size will change. Hot dip galvanized round steel is to make the molten metal react with the iron matrix to produce an alloy layer.
Flat welded ring loose flange (PJ/SE)
Flat welding ring loose sleeve flange is a movable flange piece, which is generally matched with water supply and drainage accessories (the most common on the expansion joint). When the manufacturer leaves the factory, both ends of the expansion joint have a flange, which is directly connected with the pipeline and equipment in the project with bolts. The purpose of using flat welding ring loose flange is generally to save material, the structure is divided into two parts, the pipe part of a head and pipe connection, a made flanging, flange part set in the flanging edge. Flanges are made of low grade material, while pipes are made of the same material as pipes to save material.
Flat welded ring loose flange:
1. Cost saving. When the pipe material is special and expensive, the cost of welding the flange of the same material is high.
2. It is not convenient for welding or processing or the strength required is large. Be like plastic tube, glass steel tube and so on.
3, easy to construction. For example, the flange bolt holes are not easy to be aligned during connection or prevent the flange bolt holes from changing after replacement.