1. The characteristics of the two are different: the normal name of Spectacle Blind Flange products is called flange cover, and some are called blind flange or blocked pipe. It is a flange without a hole in the middle. It is mainly used for the front end of the pipe seal and is used to seal the mouth. The seal of the head is not ready to be opened again. The flange blind plate is made of carbon steel, alloy, stainless steel, plastic, etc. The flange blind plate has the same functions as isolation, cutting, head and pipe cover. Because of its good sealing performance, for A system that requires complete separation, generally used as a constant means of isolation, a blind plate is a solid with a handle, generally used to isolate the general condition of the system. It is more convenient to use Spectacle Blind Flange products, requiring separation, using the end of the blind plate, which requires For normal operation, use the throttling ring yellow, which can also be used to fill the installation gap of the blind plate on the pipeline.
china Spectacle Blind Flange products belong to the national standard flange standard system. The middle of the blind flange is solid, surrounded by bolt holes, and the appearance is like an iron cover, so it is also called a flange cover, and the stainless steel is called a stainless steel flange cover. The blind flange can be a flat surface or a raised surface, a concave-convex surface, a tongue-and-groove surface, and a ring connection surface, but it does not have a neck like a butt welding flange (what is a butt welding flange).
Spectacle Blind Flange is used to block a pipe or create a stop on a solid disk. Blind flanges are machined in the same way with the mounting holes around the perimeter and are machined into the regular flanges of the sealing ring of the mating surface of the gasket. The difference is that a blind flange has no openings to allow fluid to pass through. The Spectacle Blind Flange can be inserted between two open flanges and used to block the flow of liquids through pipes.
1. Diverse choices.Big brands of Spectacle Blind Flange manufacturers can provide more choices, while many small manufacturers usually only have a few types and styles. Now people prefer multiple choices when it comes to choosing, so we'd better choose manufacturers from big brands.
First of all, use "three good" to weigh whether the Spectacle Blind Flange is worth choosing. There are many Spectacle Blind Flange in the industry. Many people evaluate whether Spectacle Blind Flange are worth choosing from the aspect of quality. We must pay attention to not only the quality of the flanges.
1. The Spectacle Blind Flange of stainless should have sufficient strength and should not be deformed when tightening. The sealing surface of the blind flange of the glasses should be flat and clean, and the oil and rust spots should be carefully cleaned when installing the stainless steel flange.
The Spectacle Blind Flange is not perfect and does not rust, but its anti-oxidation ability is stronger than ordinary steel, so it is called stainless steel. The Spectacle Blind Flange not only has the ability to resist atmospheric oxidation, but also has the ability to corrode in the medium containing acid, alkali and salt. However, the size of its anti-corrosion ability varies with the chemical composition of the steel itself, the interaction state, the operating conditions and the type of environmental media.