High Performance Concentric Reducer Pipe Fittings Stainless Steel ASTM Standard

TOBO INDUSTRY (SHANGHAI) CO., LTD Located in Baolong Center, Jiading District, Shanghai, the company has 5 factories to provide customers with the products they need, and the group factory covers an area of 800 acres As a Top 10 in the field of pipe flange manufacturing, the company has been committed to providing high-quality pipe flanges to customers around the world for many years. Since its establishment in 1984, the company has stood out in the fierce market competition by virtue of its profound understanding of the industry and continuous technological innovation.
The company has 15 sets of advanced production equipments and 6 product production lines. From raw material inspection to product molding, every step of the process strictly follows international standards and industry norms. Our pipe fitting flange products cover a wide range of types and specifications, which can meet the diversified needs of different customers in the fields of petroleum, chemical industry, electric power, construction and so on. The quality of our products is stable and reliable, with excellent performance in key performance indicators such as corrosion resistance and compression resistance, which are trusted by our customers.
In terms of product research and development, the company has its own team of engineers, who have been engaged in research and development positions for 5-8 years, and are able to solve the problems and difficulties we may encounter in product production and sample processing in real time.
In addition to product quality and technological innovation, the company also focuses on customer service. We have established a perfect pre-sale, sale and after-sale service system to provide customers with all-round support. Whether it is product consultation, order processing or after-sales maintenance, we can make our customers feel our professionalism and attentiveness.
Looking to the future, TOBO INDUSTRY (SHANGHAI) CO., LTD. will continue to uphold the business philosophy of "quality first, customer first, innovation and development", and constantly improve its own strength to provide customers around the world with better quality pipe fitting flange products and services, and contribute more to the development of the industry.
 

Q: What is the difference between concentric and eccentric size head in application?
A: Concentric size head is used to change the diameter of the pipeline, so that the smooth transition of the fluid, suitable for the flow uniformity requirements of high, no special installation space limitations of the occasion, such as general horizontal pipeline transportation. Eccentric head is often used to control the flow direction of fluid or to avoid gas-liquid accumulation, for example, in the import and export piping of pumps, the bottom flat eccentric head can prevent gas from accumulating at the bottom of the pipeline, and the top flat eccentric head can avoid the liquid from accumulating at the top.
Q: How much resistance does a reducer have to fluid?
A: Fluid resistance is related to the dimensional change of the reducer, the roughness of the inner wall, the material, and the flow rate and viscosity of the fluid. Generally speaking, the smoother the dimensional change (e.g., large-size, long-length reducers) and the smoother the inner wall (e.g., finely polished), the lower the resistance to fluid. Specific resistance losses can be estimated through Computational Fluid Dynamics (CFD) simulations or relevant empirical engineering formulas. For example, under standard working conditions, for water flowing at a rate of 1m/s through a DN100 x DN50 stainless steel reducer, the pressure loss may be in the range of 0.01MPa - 0.05MPa, with the specific value fluctuating due to the above factors.
Q: Does the product have quality assurance and related certification?
A: Stainless steel reducers produced by regular manufacturers usually provide a certain period of quality assurance, usually 1 - 2 years, during the warranty period, if the product fails due to product quality problems, the manufacturer will be responsible for repair or replacement. Quality certification, common ISO quality management system certification, indicating that manufacturers have a sound quality management process; for the reducer used in specific industries, such as food, pharmaceutical industry, may need to comply with the appropriate health standards certification, such as 3A certification; in some international projects, may also need to comply with international standards such as ASME, DIN and other international standards certification. When purchasing, suppliers should be required to provide relevant quality assurance documents and certificates.