High pressure butt welding flange is one of the flange products with great demand in the market. The general pressure level of high-pressure butt-welding flanges is between 0.5mpa and 50mpa. The structural forms of high-pressure butt-welding flanges are divided into unit flanges, integral flanges, and insulating flanges. According to the shape of aluminum camlock fittings the flange surface, they can be divided into methods. Blue sealing surface: flat surface, concave surface, concave-convex surface, tongue and groove surface, ring connection surface.
The sealing of the butt welding flange is reliable, the performance is excellent, and the appearance is beautiful. Butt welding flange has the advantages of wear resistance, high temperature resistance, corrosion resistance, good scratch resistance and long service life.
Because the unique impact strength performance is significantly improved compared to other solid wall pipes, its ring stiffness is equivalent to 1.3 times that of solid wall. Under the rated operating temperature and pressure, the pipe has a service life of more than 50 years, and has anti-ultraviolet and anti-radiation, so that the product will never fade.
There are three types of flange sealing surfaces
The part that connects the pipe to the pipe is connected to the end of the pipe. There are holes on the flanges, and bolts make the two flanges tightly connected. The flanges are sealed with locking camlock fittings gaskets. Flanged pipe fittings refer to pipe fittings with flanges (flanges or pans). It can be cast (not shown in the figure), threaded or welded. Flange connection (flange, joint) consists of a pair of flanges, a gasket and several bolts and nuts.
There are three types of flange sealing surfaces: flat sealing surface, suitable for occasions where the pressure is not high and the medium is non-toxic; concave and convex sealing surface, suitable for occasions with slightly higher pressure; tongue and groove sealing surface, suitable for flammable and explosive , toxic media and high pressure occasions. A gasket is a ring made of a material that can produce plastic deformation and has a certain strength. Most of the gaskets are cut from non-metallic sheets, or made by professional factories according to the specified size, and their materials are asbestos rubber sheets, asbestos sheets, polyethylene sheets, etc.
Flange is divided into threaded connection (wire connection) flange, welding flange and ferrule flange. Low pressure small diameter has wire flange and ferrule flange, high pressure and low pressure large diameter use welded flange, the thickness of flanges and the diameter and number of connecting bolts are different for different pressures.