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Generally, the insulation steel pipe shall be coated with secondary inorganic zinc-rich primer (temperature resistance ≥400℃), and the pipe port shall be sealed with polyethylene film or three layers...

Process Flow of Sanitary Mirror Pipes Tube blank—check—peeling—check—heating—perforation—pickling—grinding—lubrication and air drying—welding head—cold...

1. Joint. Rigid joint, flexible joint, male thread joint, female thread joint, male and female thread joint, single-wire joint, double wire joint, screwed joint, flat face hammer...

An elbow can change the direction of straight pipes in pipeline construction, so it is widely used in pipeline construction. Because different types of elbows are required for different environments,...

Abstract: common design points in chemical process design are introduced, including the design of reducers, elbows, valves, and connections. The protective pipe of steam pipelines of...

A stainless steel flange is widely used in marine pipeline engineering because of its good corrosion resistance. As an important part of pipeline connection, it has the advantages of convenient...

 Inspection of Stainless Steel Reducers 1. Geometry analyses of stainless steel reducers The distribution trends of wall thickness of big and small concentric reducers are exactly the same....

The background and significance Since the 1990s, with the rapid development of China's national economy, the natural gas pipeline industry has also developed rapidly. As natural gas is transported...

Electroplating is often applied to the surface treatment of stainless steel pipes. Maybe you don't know what electroplating process is, so let's first explain what electroplating...

Material properties Materials used for duplex steel pipe fittings refer to stainless steel with ferrite and austenite each accounting for about 50%. Generally, the content of less phases needs to...

Definition of pipe fittings: Pipe fittings are parts that connect pipes into pipelines. According to the connection method, it can be classified into socket pipe fittings, threaded pipe fittings,...

2.3 Adding corrosion inhibitors to oil and gas Among the many anti-corrosion measures, adding corrosion inhibitors is the only measure that does not need to change the flange. The addition of corrosion...