Bl Blind Flange Blind Plate

 

It has the appearance of a solid circular plate, with bolt holes around it. There is no neck of the welded flange, and there are various forms of sealing surfaces, such as flat surface, convex surface, male and female surface, tongue and groove surface, and ring joint surface, etc. The materials include carbon steel, stainless steel, alloy steel, copper, and aluminum. It mainly plays the roles of sealing, isolation, and cutting off, which can prevent the medium in the pipeline from leaking or overflowing, and is used for equipment testing, pressure testing, etc. Its advantages are that it can be disassembled at any time, is convenient to connect and use, can withstand a relatively large pressure, has high mechanical strength, strong sealing performance, and good chemical stability. It is widely applied in industries such as petroleum, chemical engineering, shipbuilding, pharmaceuticals, metallurgy, machinery, and food.

The flange cover can isolate different areas or equipment in the pipeline system. In the complex and changeable scenarios of industrial production processes, when a certain piece of equipment needs to be repaired, maintained, or replaced, simply installing a flange cover can quickly cut off the connection between this equipment and the pipeline network, avoiding interference from other parts that are in operation. At the same time, it can prevent impurities from entering the pipeline during the maintenance process. For example, in an oil refinery, a flange cover is used at the connection between the distillation column and the subsequent pipeline. During the internal cleaning of the column and the replacement of components, it can isolate the crude oil from the upstream or the semi-finished oil from the downstream, ensuring the orderly progress of the operation and not affecting the continuity of the entire oil refining process.