— Credit-based Common Development —
Scope And Application Of Butt Welding Flange
Butt welding flange is a kind of pipe fitting. Butt welding flanges, also known as split flanges, refer to flanges with neck and round pipe transitions and butt connections with pipes. Flanges are the components that connect pipes to each other and to the ends of pipes. There are holes in the flanges, and bolts make the two flanges tightly connected. Butt welding flanges and their gaskets and fasteners are collectively referred to as flange joints. Flange joints are an essential part of equipment and equipment components as well as pipe design, pipe fittings and valves.
Scope of application of butt welding flange:
It has corresponding rigidity and elasticity requirements, is not easily deformed, and has good sealing performance, and is widely used. Reasonable butt welding thinning transition. The distance between the joint and the joint is large, and the joint has no temperature deformation after welding. It adopts a complex bell-shaped structure and is suitable for pipelines with large pressure or temperature fluctuations or pipelines with high temperature, high pressure and low temperature, and is generally used for the connection of pipelines and valves with PN greater than 2.5MPa. Butt welding flanges can also be used to transport expensive flammable and explosive items in medium pipelines.
The use of butt welding flanges:
Flanges are mainly used for pipe connections. Various flanges are installed on the pipes to be connected. Threaded flanges can be used for low pressure pipelines, and butt welding flanges can be used for pressures above 4kg. Add spacers between the two flanges and bolt them down. The different bolts used mainly depend on the thickness of the butt weld flange at different pressures. When pumps and valves are connected to pipelines, parts of these devices are also made into corresponding flange shapes. Also called flange connection. All connecting parts that are bolted and closed on the outside of two planes are commonly referred to as "flanges". The butt welding flange shall be marked according to the nominal diameter, nominal pressure, form code of sealing surface, designated steel pipe series code and standard number.
Butt welding flanges have different production specifications in use and production. According to the corresponding specifications, the actual application value and effect of the butt flange can be guaranteed. Large-scale application of high pressure butt welded flanges: boilers, pressure vessels, petroleum, chemical, metallurgy, machinery, food and other industries.
Butt welding flange,Split flange
There are four types of polishing methods for dual-phase steel flanges: manual, mechanical, chemical and electrochemical. The corrosion resistance and decoration of the flange can be improved by polishing. The existing stainless steel electropolishing solution still uses phosphoric acid and chromic anhydride. During the polishing and cleaning process, some chromium and phosphorus will be discharged into the waste water. pollution of the environment.
Contact F&D Flange Fittings
No.27 Gangqiang Road,Konggang Economic Zone,Yongxing Street,Longwan District,Wenzhou,China