Connection Modes of Oil Pipelines

Several days ago, we introduced the types of tube that used in oil pipeline, today, we will share the connection modes of oil pipelines for people those interested in this aspect.
Oil pipeline must use a certain connection to form a complete system. Connection methods of pipeline are mainly three categories, including screw thread, welding and flange connection.
When the pressure is not high, the pipe with small diameter can be connected by using screw thread this method. This connection method is very convenient, but most of the diameter of oil pipelines are generally larger, so other two connection methods are used commonly.
The pipeline that DN≥50 basically uses welding method to connect. Welding has many advantages, such as convenient construction, strong, tight and saving steels. The general straight pipe or bends those parts do not need to tear down can use this method.
The connection of pipes and valves or other equipment (such as: pump) and the parts those need to disassemble of pipeline need to use flange to connect. In order to ensure the tightness of the flange connection, we also need to use a relatively soft flange grommet to assist on both sides of the flange. According to the production process, flange can be divided into flat welding, thread, butt welding, loose tube and blind plate and other types. Except blind plate flange, others are all used in interconnection between the pipeline. If you need to connect different diameters of the pipeline, you can use the adapter flange that two diameter corresponding. The blind plate flange is used to close the end of the pipe head. Therefore design of it make it can withstand greater bending stresses.
20170417-oil-pipelines
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About Hunan Prime Steel Pipe Co., Ltd

HUNAN PRIME STEEL PIPE is the export gateway of SHINESTAR HOLDINGS GROUP. We are dedicated in providing and exporting high performance-price ratio welded & seamless steel pipes and fittings covering various steel grades. At Prime Steel Pipe, we believe that honest communication, expertise in our industry, and prompt execution lead to strong long-term relationships. Our professioanl team provides " one-stop procurement" servics to coordinate with your project regulation, site and terrain, and ensure the best quality of products by assigning skillful experts at every stage of production. Our principles is to keep the honesty in mind, to win reputation by trust. We strives to providing quality products, competitive price and value-added services to our clients throughout the world.

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