Butt welded pipe fittings are the most widely used pipe fittings. It is made of high-quality steel pipe and is formed by heating or pressing. Carbon steel pipe fittings are divided into carbon steel elbow, carbon steel tee, carbon steel cross, carbon steel reducer (large and small head), carbon steel head (cap) 5 series. The main implementation standards include GB, DIN, ASME, JIS, GOST. The biggest use of carbon steel pipe fittings is to connect pipes, Valves, pumps and other equipment to form a complete piping system. Steel Fitting,Stainless Steel Fittings,Ss Fittings,Stainless Fittings Inner Mongolia Overseas.Trade co.,LTD , https://www.flangevalvejoint.com
When using, the pipe fittings are evenly welded with the flange or directly with the pipeline, so that the entire pipeline is integrated and starts to work normally.
Pipe fittings are widely used in water, beverage, beer, food, petrochemical, nuclear power, machinery, medical equipment, fertilizer, shipbuilding, waterproofing and other pipeline systems. It is the most widely used pipe fittings in the piping system and equipment of machinery, petroleum, chemical industry, water conservancy, electric power, shipbuilding, air conditioning and other departments. The tube cap is also the end cap on the pressure vessel, which is a main pressure-bearing component of the pressure vessel. The quality of the cap is directly related to the long-term safe and reliable operation of the pressure vessel.
Types of butt welded fittings:
According to the model can be divided into: ANSI B16.9 ANSI B16.28 JIS B2311SGP DIN 2605, DIN2615 DIN2616 DIN2617
According to the shape, it can be divided into: elbow, tee, cross,
Reducer (large and small head), head (cap)
According to the thickness can be divided into: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
According to the process, it can be divided into: stamping, pushing
According to the material can be divided into: carbon steel, stainless steel, alloy steel
1: Put the high-quality steel pipe, the raw materials according to the required size, and put it into the ring-shaped intermediate frequency furnace to heat and push to form or place it on the mold and extrude it by the press.
2: Pass the shaped elbow blank through the special CNC lathe for pipe fittings according to the drawing. Welding groove processing is performed on the two ends of the elbow blank, with a certain angle and a certain edge, and the angle and deviation range are strictly in accordance with the requirements of the drawings.
3: Put the elbow blank after shaping and beveling, and put it into the shot blasting machine for shot blasting on the surface of the pipe to remove the oxide skin on the inner and outer surfaces.
4: The finished pipe fittings are inspected according to the requirements of the drawings for the thickness and radius of curvature and straightness.
5: The pipe fittings that have passed the inspection will be typed on the end face according to the customer's requirements, and the pipe caps will be treated with anti-rust treatment according to the customer's requirements, and then put into wooden boxes or wooden pallets for transportation.
Standard for butt welded pipe fittings: ANSI B16.9 ANSI B16.28 JIS B2311 SGP DIN 2605, DIN2615 DIN2616 DIN2617
Thickness of pipe fittings: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
Size of butt welded fittings: 1/2"-48" (DN15-DN1200)
Suntech’s bankruptcy rumors show that the photovoltaic industry is ahead of winter
After the LDK National Day in Jiangxi Province was reported to be able to file for bankruptcy protection, the news of Wuxi Suntech, the world's largest PV module manufacturer, “will file for bankruptcy protection†on the Internet the day before yesterday. Although the above rumors have been denied by both parties, the two domestic benchmarking companies have been involved in bankruptcy rumors, making the photovoltaic industry screaming enough to allow the same industry to feel the cold of the bones. Behind the bankruptcy rumors of Suntech is the rapid expansion of China's photovoltaic industry's large-scale sprinting capacity, while the major consumer market in Europe is suffering from the grim reality of the debt crisis. Since the beginning of this year, the price of photovoltaic modules has fallen by more than 40%. Although the industry giants still have slight profits, the capital chain has been severely strained; small and medium-sized enterprises have generally fallen into losses, and production has been suspended and semi-discontinued; some small factories have already begun to sell equipment. Dilemma. The once glorious photovoltaic industry is in crisis. Suntech nicknamed "good business conditions" The night before, "Shangde Power will file for bankruptcy protection" news was reprinted in the network, causing a huge panic in the photovoltaic industry. The so-called windless waves, the global photovoltaic industry is in deep winter. Since August-September, three large-scale photovoltaic companies in the United States have declared bankruptcy. Before and after the National Day, another domestic PV module giant, LDK, was also likely to file for bankruptcy. protection. Therefore, Suntech’s bankruptcy rumors have received a lot of attention from the industry. Zhang Jianmin, manager of the public relations department of Suntech Power Media, clarified this rumor on Weibo for the first time, saying that the so-called bankruptcy protection is a rumor, and said that Suntech’s current operating conditions are still very good. The reporter also learned from Suntech's polysilicon supplier, Poly GCL, that the long list signed by Suntech Power and GCL-Poly is still performing normally every month. However, as of now, Shi Zhengrong has not come forward to explain this situation. Suntech’s bad news has been steadily this year. First, many executives left. In July, they suspended US$212 million in cooperation with US polysilicon supplier ME MC. In August, they fell into “smuggling†and went to bankruptcy today. Its share price also fell from $90 at the peak of 2008 to $2.08 yesterday; the market value fell from the peak of $17 billion to the current $375 million. China's photovoltaic industry swallows the "expansion of the tide" bitter fruit Suntech's current situation is the portrayal of the overall status of China's photovoltaic industry. Because of the optimistic view of the “money†of the photovoltaic industry, since 2006, a large number of funds have poured into the photovoltaic manufacturing industry, and there has been a “Great Leap Forward†in China. Unexpectedly, the crazy expansion of production, but encountered the sluggish European market this year, China's photovoltaic industry had to drink the brewed bitter wine. Compared with the market demand of 9% growth, the production capacity of photovoltaic modules is making great strides. The reporter learned from Wuxi Suntech, Yingli Green Energy, Jiangxi LDK, Trina Solar and other industry giants that by the end of this year, only the four PV modules will have a capacity of 9G W. Li Junfeng, deputy director of the Energy Research Institute of the National Development and Reform Commission, said in an interview that this year only China's PV module companies have a capacity of 30G W, while the global installed capacity this year is only about 20G W. A serious overcapacity has become an indisputable fact. According to statistics, the current inventory of PV modules in the world is around 10G W. Lian Rui expects that if the manufacturers do not cut production, the inventory may surge to 22G W at the end of next year. Wang Zhixin of Yingli Green Energy Propaganda Department told reporters that the price of photovoltaic modules plummeted and the inventory increased significantly. SMEs without scale advantage are generally caught in a quagmire of losses, and the tide of closure will be difficult to avoid. "Foxconn" model has come to an end Although China's photovoltaic industry has developed rapidly in recent years, there are a number of quality-free development models that can easily cause ups and downs in the industry. "In the past few years, electrical, feed, home appliances, real estate, and hardware have all gone to the photovoltaic industry, thinking that this is Baoshan. But in these enterprises, the core is really mastered. There are not a few technologies, and more companies are doing OEM. When the market is good, there is still some room for survival; once the market turns cold, many companies will have to close down.†One of the China Renewable Energy Society The staff said. Zhou Wei, editor-in-chief of the solar photovoltaic network, pointed out that the photovoltaic industry has reached a low point and the price is too low, leading to a collapse of the entire photovoltaic industry. Lu Xinzhi, a well-known economic commentator, pointed out that a large number of so-called Chinese PV companies are only "Foxconn" in the photovoltaic industry, earning money from OEMs. This model has reached its end, and Chinese PV companies need to reflect. Grasp the opportunity to adjust the industrial structure and master the core technology.