Flange has good comprehensive performance, so it is often used in chemical engineering, construction, water supply and drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire protection, power, aerospace, shipbuilding and other engineering fields,
Flanges are pipe fittings classified according to the connection mode with pipes. Generally, it can be divided into flat welding flange with neck, butt welding flange with neck, socket welding flange, etc.
The sealing surface of flange has many forms, such as protruding, concave and full plane.
What are the applications of neck flange in daily life?
First of all, understand the advantages of the neck butt welding flange. The neck butt welding flange improves the strength of the flange and the bearing strength of the flange. It is often used in high-pressure pipelines.
The advantage of the neck butt welding flange is to connect the pipeline and maintain the sealing performance of the pipeline. It is convenient to replace a section of pipeline. This facilitates the removal and inspection of the pipeline condition and the closing of a section of the pipeline. The neck flange is often used for material replacement during connection. The steel ring is placed at the pipe end and the flange can move at the pipe end. The steel ring or flange is the sealing surface, and the function of the flange is to compress them.
The neck slip-on flange is a movable flange, which is usually matched with water supply and drainage fittings (common on expansion joints). There is a flange at both ends of the expansion joint, which can be directly connected to the pipeline and equipment in the project.
Butt-welding flanges are available in many types and models. Butt-welding steel flanges are used for butt welding of flanges and pipes. Mainly used for welding process. It has good use characteristics and performance, reasonable structure, high strength and rigidity. It needs to be determined according to the specific situation to weld the value and performance of the flange and can withstand high temperature and high pressure. Use, determine the scope of use according to the characteristics. It is mainly used in medium medium conditions, such as low pressure non-purified compressed air and low pressure circulating water. Its advantage is that the price is relatively low. It is applicable to the connection of steel pipes with nominal pressure not exceeding 2.5MPa. The sealing surface of welding flange can be divided into smooth type, concave-convex type and tenon type. The flat welding flange is widely used.
Butt-welding flange can withstand high temperature and high pressure, repeated bending and temperature fluctuation, and sealing performance. Butt-welding flanges with a nominal pressure of 0.25~2.5MPa often use concave and convex sealing surfaces.
Post time: Jan-31-2023
