DURLMARK – BLOG
The manufacturing process of reducing flange is: clamping, feeding, plasticizing, injection molding, opening mold, outing the products and so on.
The practice that definite specification, categories and working pressure meeting the requirements is imperfect in the current environment of market economy. For competition
Stainless steel pipe and other products will undergo forming, welding and heat treatment in the manufacturing process, which makes the surface contaminated. Therefore, the passivation treatment is an important and indispensable process.
In the piping system pipe fitting plays a role of changing direction, diameter or elevation and closing the tube.In petrochemical plant, pipe has various kinds with many shapes and complex system;
The selected flange gaskets should have the following important characteristics to ensure long-time effective sealing when applied in adverse conditions.
Titanium has already applied in chemical engineering, health care, salt manufacturing, chlor-alkali, aviation and other industries, for its good mechanical property and excellent corrosion resistance.
In general, hardness indicators of Brinell, Rockwell and Vickers hardness index are adopted to measure the hardness of steel.
Straight tee plays an important role in its application with beautiful shape, smooth surface, acid and alkali resistance,
There are two common methods for detecting pits on flange surface, including magnetic flux leakage and ultrasonic wave.
The followings are the materials used for liner of valves for corrosion resistance.