Special ordinary abrasive powder "FO" was born in Zhengzhou

From the perspective of focusing on the world's micro-powder technology, there will be new technologies beyond micro-powder, and "FO" was born in Zhengzhou. The symbol "FO" is in the eyes of many people. What is this? I am afraid that it is still unclear for a while. The "FO" product is a revolutionary abrasive developed and put into operation in 1950 by FUJIMI Fujiji (Japan). It is called special optical diamond. A special material used for grinding and polishing optical instruments, silicon crystals, wafers, and any object with a hardness in the range of 7-8. This unique "FO" special micropowder currently holds 70% of the world market and 95% of the Japanese market. Since the launch of the "FO" product, it has been more than 60 years. So far, there is no second company in Japan and the world that can produce a lot of performance comparable to the performance of "FO" products. China's "FO" product research and development people are able to smelt silicon carbide, brown fused alumina, white fused alumina, single crystal corundum, high alumina corundum, abrasive processing, micro powder production in our abrasive industry, and can carry out production process design and technology. Mr. Fan Donghai, an old expert. After years of painstaking research, it has finally added a new variety to China's abrasive industry, which also fills a gap in China. The production process and technical conditions of “FO” products are special and are a high-tech product. The added value of the product is very high, and at the same time, it is also a wonderful product that cannot be replaced by other products. After the product is put into production, all domestic enterprises that use imported "FO" products can use domestically produced products. The quality of domestic “FO” products is more stable and the use effect is better. And can significantly reduce production costs, which is undoubtedly the biggest gospel of companies using "FO" products.

 

Size: DN40MM--DN600MM (1 1/2"--24")
Rubber material: EPDM,NBR, NR, Neoprene

Rubber sphere: Dual-ball 

Flange: DIN2576, BS4504 

Flange material: Carbon steel, stainless steel

Flange surface:  Galvanized

 

 rubber expansion joints are designed to absorb movements and stress on piping systems, compensate for pipe misalignment, reduce vibration and system noise. they also protect against start-up forces as well as system surges. All SA style joints come standard with ANSI 150# solid floating metallic flanges. the design of the SA style does not contain any metallic reinforcement in the carcass of the bellows. Instead the carcass has a minimum of four layers of high tensile synthetic fabric. Each layer is impregnated with a rubber or synthetic compound. this allows movement and flexibility between the layers of fabric. the SA style design has a long radius arch allowing for self cleaning and thus eliminating the need for a filled arch. the sa style is the most economic choice when it comes to rubber expansion joints.


Rubber Expansion Joint

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Hebei Lanwei Imp. & Exp. Co., Ltd. , http://www.hblanwei.com