Some Knowledge Points of High Pressure Flange

High pressure flanges are widely used, but their quality requirements are also high. Traditional high-pressure flanges use plastic deformed parts such as gaskets (oval gaskets, octagonal gaskets, lens gaskets, etc.) to achieve sealing effects, and are connected to pipe ends to connect pipes to each other. There are holes in the flange and studs make the two flanges tightly connected.
High pressure flange has played a good role and value in use. The premise is that it must be used according to the corresponding method. During installation, it is necessary to follow the guidance of experts to correctly install, in order to better ensure the use value and prolong the service life. Secondly, during installation, gaskets cannot be replaced by ordinary gaskets, and corresponding gaskets must be selected to ensure sealing effect.
In use, the size of the high-pressure flange will be reduced accordingly. The reason for the reduction in the size of the high-pressure flange is the reduction in the diameter of the seal, which will reduce the cross-section of the sealing surface. Secondly, high-pressure flange gaskets have been replaced by sealing rings to ensure that the sealing surface matches the sealing surface. As the required pressure decreases, the size and number of bolts decrease accordingly. High pressure flanges have good use value and functions in use, and should be used in corresponding ways and methods to avoid certain quality and functional problems in use.
The materials used to manufacture high-pressure flanges require some special raw materials for production. These raw materials must be strictly selected and controlled, and the raw materials must be selected correctly, otherwise the high-pressure flange produced will have no quality assurance. The material used for high-pressure flanges is a new type of material with special electrical, acoustic, thermal, mechanical, chemical, and biological functions. They are important basic materials in high-tech fields such as biotechnology, energy technology, and national defense construction. They also play an important role in transforming some traditional industries, such as agriculture, chemical engineering, and building materials.
The core of the high-pressure flange is a unique new type of metal to metal seal, which is formed by the elastic deformation of the sealing lip (T-shaped arm) of the sealing ring, and belongs to a hard seal; Then, the joints of the socket, ferrule, and sealing ring are combined to form a solid rigid body, making the strength of the connecting part much greater than the pipe itself. When under pressure, the ribs and lips play a strength and sealing role respectively, which can not only self tighten and seal, but also strengthen the pipeline, greatly enhancing the overall strength of the joint.
In normal pipeline applications, high-pressure flanges are not subjected to overload compression; When high pressure shrinkage loads occur, the load on the high pressure flange is determined by the ultimate strength of the pipe. In most cases, the high-pressure flange in the connection is more capable of withstanding tensile loads than the pipe itself; The destructive test shows that after the pipeline fails under tensile load, the high-quality high-pressure flange will remain intact without leakage.
The above are some knowledge points about high-pressure flanges, hoping to help everyone.