Characteristics1Welded elbows have weld seams. After the welding operation is completed, to prevent the elbow from corroding or being corroded at the weld seam, anti-rust or anti-corrosion treatment should be carried out on the welded elbow according to the actual situation or the external environment of the pipeline. This process requires us to understand the quality of the welded elbow before use.
Characteristics2Due to the different welding standards for various pipes, welded elbows are usually welded on the pipe construction site. It is necessary to carry out on-site welding for different pipe welding grades. Another feature of welded elbows is that they need to be welded on-site according to the pipe welding grade.
Characteristics3: Welded elbows are mainly used to modify pipe diameters and connect two sections with different end radii. This type of elbow, in addition to meeting the pipe diameter requirements, must also take into account the specific conditions of the pipeline. Generally, it needs to be produced according to specific engineering requirements or specific drawings, such as fluid viscosity, wear and corrosion, pipeline conveying pressure, fluid conveying temperature and other factors, and has certain usability and specificity. This is another important feature of the construction and use of welded elbows.
Technical requirements for welding elbows
Geometric dimensions include inner diameter, outer diameter and wall thickness, for example, the radius length is1.5DThe radius of curvature not only requires control of the radius of curvature but also must be within the range of tolerance requirements. To enhance the welding quality, grooves with certain angles and edges are made at the ends. Since most of these pipe fittings are used for welding, the requirements are very strict. The angles, thicknesses, and deviation ranges of the edges are all stipulated.
The surface quality and mechanical properties are basically the same as those of the pipe. To facilitate welding, the steel grades of the pipes to be connected are the same. All pipe fittings must undergo inner and outer surface treatment and then be coated with anti-corrosion paint. This is not only for export requirements but also for transportation to prevent corrosion and oxidation.
Regarding packaging requirements, for small pipe fittings, such as for export, wooden cases need to be made.1The volume is about cubic meters. The number of elbows in this type of box is stipulated not to exceed one ton. It is allowed to be large within small, that is, in sets, but the total weight generally should not exceed one ton. For large items, they should be packaged separately. Another type is packaging marks, which should indicate the size, steel grade, batch number and manufacturer's trademark. Pipe fittings should be stamped with steel seals and accompanied by packing lists and warranty documents.
Foshan Weilihuang Trading Co., Ltd. is a leading manufacturer specializing in the production and sales of international and domestic stainless steel hardware accessories and its own brands. The company is located at Tianjinli Hardware Accessories Center, Lanshi 2nd Road, Chancheng District, Foshan City, Guangdong Province8seat10-12The number (i.e., the main entrance of the market) has an abundant supply of goods, a complete range of varieties, wide coverage, favorable prices, and stable and superior quality!
The company uses high-quality stainless steel and exquisite craftsmanship to ensure there are no weld marks at the interfaces. Its products feature novel designs, elegant craftsmanship, and long-lasting durability. The company has always adhered to the principle of quality first and reputation first. It is equipped with mature production facilities and has strong technical strength, thus ensuring the quality of its products. The company is willing to make unremitting efforts to join hands with our customers to create a win-win situation and provide high-quality products for our partners.
