Application Prospect Of Stainless Steel Pipe Without Steel Pipe

Stainless steel pipe is safe and reliable, health and environmental protection, economical and applicable, the thin-walled pipe and the new reliable, simple and convenient connection method of the development of success, so that it has more irreplaceable advantages of other pipes, engineering application will be more and more, the use will be more and more popular, promising.

Along with the implementation of reform and opening policy in China, the national economy has been growing rapidly, and a large number of urban houses, public buildings and tourist facilities have been built, which has put forward a new requirement for hot water supply and domestic water supply. In particular, the water quality problem, people pay more and more attention to, the requirements are also constantly improved. Galvanized steel pipe this common pipe because of its easy corrosion, under the influence of the relevant national policies, will gradually withdraw from the stage of history, plastic pipe, composite pipe and copper pipe has become the common pipe system. But in many cases, stainless steel tube has more advantages, especially the thin wall thickness of only 0.6 ~ 1.2mm stainless steel tube in the quality drinking water system, hot water system and the safety, health in the first place of the water supply system, with safe and reliable, health and environmental protection, economic and applicable characteristics. It has been proved by engineering practice at home and abroad that it is one of the new type, energy saving and environmental protection pipes with the best comprehensive performance of the water supply system, and it is also a very competitive water supply pipe, which will play an incomparable role in improving water quality and improving people's living standards.

In the construction of water supply pipe system, because galvanized steel pipe has ended a hundred years of glorious history, a variety of new plastic pipe and composite pipe has been rapidly developed, but there are still some defects in various degrees of pipe, far from completely adapt to the needs of water supply pipe system and the national requirements for drinking water and water quality. Therefore, the experts predict: building water supply pipe will eventually return to the era of metal pipe. According to the application experience abroad, the thin-walled stainless steel pipe is one of the pipes with the best comprehensive performance.

(1) domestic thin-wall stainless steel pipe promotion and application of the opportunity is ripe

Thin-walled STAINLESS steel pipe, domestic in the late 1990s began to produce, use, is now the pipe field emerging new family, has been widely used in building water supply and direct drinking water pipeline.

Thin wall stainless steel tube durable, has been recognized by the engineering community, and the relevant aspects are from the reduction of wall thickness, reduce the price, in order to facilitate further promotion. Especially small diameter stainless steel pipe, the price is not high, so the supporting connection method, reliability and price of pipe fittings are the main factors that determine its development. Domestic developers in Sichuan, Guangdong, Zhejiang, Jiangsu and other places have independently developed the connection technology and pipe fittings, is a very promising pipe. The Ministry of Construction and relevant departments also attach great importance to this new type of pipe, according to the China Technology Market Management Promotion Center, Guoke City [2001] No. 71 document, on the promotion and application of "high diameter wall ratio of high precision stainless steel medium and high pressure water supply pipe and supporting pipe fittings and special technology" notice learned, The promotion and application of thin-walled stainless steel tube technology and product are of great significance to upgrade the class of modern buildings in China and to improve the water quality of water supply.

At the same time, the Ministry of Construction attaches great importance to the promotion and application of thin wall stainless steel pipes. The industry standard of Thin-walled stainless steel water pipes has been issued and implemented in 2001. The relevant pipeline engineering technical regulations and installation drawings have been published by the Ministry of Construction and are being compiled by Tongji University. At present, Sichuan, Guangdong, Zhejiang, Jiangsu and other places have professional manufacturers to produce thin-wall stainless steel pipe, the product has become mature, therefore, the time to promote application has come.

(2) The domestic market is promising

① The demand for building water supply pipeline is large

According to "construction business" 9 five "plan and 2010 vision target outline" calculate, 2001~2010 years, the demand of pipe material every year is 500 ~ 600 thousand km, among them residential construction area cold hot water pipe demand is 400 thousand km. Someone THINKS, THE DEVELOPMENT OF STAINLESS STEEL CONDUIT, TO RAISE THE GRADE OF URBAN MODERN BUILDING, SIGNIFICANCE IS GREAT.

② Direct piped drinking water develops rapidly

With the development of national economy, piped direct drinking water has developed rapidly in cities such as Beijing, Shenzhen, Shanghai and Chongqing in China, and medium-sized cities with developed economies are also actively planning to catch up. In direct drinking water, stainless steel pipe system is undoubtedly second to none. At present, domestic first-class hotels, public places have been configured or in the configuration of direct drinking water pipeline.

(3) Domestic substitution for import has a bright future

In order to promote stainless steel tube, our country from the 1990s to reduce the thickness of the wall, reduce the cost to solve the thin wall stainless steel tube "high diameter wall than high accuracy" technical problem, stainless steel tube has been widely used, the development of rapid. If a pipeline can be fully promoted and applied, it must be localized. At present, some domestic manufacturers have the ability to produce and further develop thin-wall stainless steel pipes and fittings.

(3) stainless steel pipe is connected in various ways

Stainless steel pipe is connected in various ways. Common pipe fitting types include compression type, compression type, flexible connection type, push type, push thread type, socket welding type, flexible flange connection type, welding type and welding and traditional connection combined with the derived series of connection mode. These connection modes, according to their different principles, their application scope is also different, but most of them are easy to install, firm and reliable. The connection of the sealing ring or gasket material, mostly selected in line with the requirements of the national standards of silicone rubber, nitrile rubber and ethylene propylene ternary rubber, so as to avoid the user's worries.

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