Ball Valve,Ball Valve Information

Recently, severe throughout the country ‘labor shortage’ phenomenon, so that most of the labor-intensive manufacturing, companies are anxious for this, and the valve industry was not spared; the early “rolling blackouts” style has given way to unconventional means high energy load cell consumption, high emission valve industry complain incessantly, and local governments to complete the 8% growth rate of scientific development and the “second five” to develop energy-saving emission reduction targets, not necessarily high energy consumption, high emission valve industry under the knife again.

Is well known that the number of small and medium passenger elevator enterprises valve industry reached more than twenty thousand, and most of the existence of the business size is generally small, relatively backward technology, high energy consumption and high emissions, low product quality problems; vigorously implementing the national energy saving, policy of sustainable development, some managers still in the business strategy of high energy consumption and low output of the enterprise structure, and the economy pick up, corporate orders increased, to enable enterprises to increase the demand for labor; the one hand, strong state energy-saving emission reduction policies, on the one hand and a “labor shortage” caused by labor shortages, constraints in the dual impact, the traditional enterprises, “low-tech, low value-added” structure model has been flawed, at risk.

Small group structure from the valve is easy to see, although many motorcycle grip realize the importance of transformation and upgrading, but most also “luck” to a “step by step” misconception, and refused to timely under the situation of the enterprise to change the traditional business philosophy, and technology innovation to accelerate M & A is the valve industry, a major common problem, if not brandished a knife and treat illness, paranoid with the current high energy consumption and low added value products in the whole country Daxing economic restructuring, and sustainable development of game situations, and that only the face of these ball valve business into the abyss.

Yesterday, in Nuclear Science and Technology (000777) Annual General Meeting held in 2010, company executives said at the shareholders meeting in 2011, on the positive development of petroleum, petrochemical, power, water treatment business in markets such as special valves the same time, the drywall screw company will continue to focus on development nuclear power, nuclear and chemical projects with the valve market business.

Since the Fukushima nuclear accident since the use of nuclear energy worldwide attention and safety. State Council executive meeting held recently stressed that the development of nuclear power to make safety first. Journalists engaged in related businesses to understand nuclear power valves, the pressure washer company vice chairman, said Chan Kam-ping, China has always attached great importance to the safety of nuclear power development projects, as a nuclear power projects in nuclear science and technology supporting the supply valve business, according to nuclear safety certification and owner-related businesses supervision requirements and relevant provisions of the design and manufacture of related products and materials have very strict safety and reliability testing and quality PVC ceiling requirements.

According to the disclosure of nuclear science and technology in the analysis of annual reports, company data, product revenue, nuclear brass ball valve business in 2010 operating income of 1.05 billion yuan, up 105.16 percent over the previous year.

Valve oil, chemical, power station, long distance pipeline, shipbuilding, nuclear industry, a variety of low-temperature projects, aerospace and marine oil and other economic sectors not indispensable fluid control equipment. The industrial development and needs, promote the development of industrial dinosaur model. In recent years, to meet all new requirements of high parameters, while the valve structure, materials and production processes, etc., on how to achieve better performance, reliability and lower costs, also pay close attention. Valve is involved in many categories, species complex, a wide range of large products, its quality, technical level directly affects the development of all sectors of the national economy. Therefore, the valve requires strict internal quality control. Some of the valve needs to be internationally recognized authority in order to open the market. For example, some power engineering valves, nuclear valves to get ASME (American Society of Mechanical Engineers) was authorized to purchase tags. ASME has been using the “N”, “Nv”, “NPT” and other five markers. Valves for the oil industry to get the American Petroleum Institute “API” mark to open the hex nut market.

Foreign valve industry conditions:

With the class representatives of foreign countries the rapid development of big industry, valve industry, the development of production is also very fast. People in about 50 years ago, a number of countries to form an independent professional and trade system, the valve, the brass ball valve with the valve industry professional organizations or academic organizations. For example: two in Europe, the United States and Britain have the valve industry associations; Japan and the valve of the valve industry will; move the valve in Europe and the former Soviet Union. Design institutes. The valve industry and professional organizations, are intended to improve the production technology and the needs of foreign competition set up. Major industrial countries as the current composition of the valve industry.

Valve Industry Workers (In 1990) The United States has 77,500 employees, of which 70% of workers, research and managerial personnel, 30%; United Kingdom 80,000; 52,500 people in Germany; Japan, 35,000; Italy l5000 people; France 11519 people.

The total number of U.S. valve manufacturer 900, the maximum number of 3,500 enterprises; Japan, 1507, the maximum number of 900 enterprises; German 450, the maximum number of 3300 enterprises; English 490, the maximum number of 1,100 enterprises; France 400, the maximum Company Number 1000; Thus, the valve largest number of kitchen faucet manufacturing enterprises in Japan, the largest number of workers in the United States. Valve industry workers in Japan is only one half of the United States, and nearly twice the U.S. total number of enterprises. Compared with the United States, Japan, the valve industry, small and medium-dominated, there are about 250 large enterprises. Into 80 years, the number of countries in the valve industry has a small staff with the degree of single-phase motor, and reduce the range of most people in France, 21,000 people from 80 down to 80 at the end of (1988) 1l519 people.

Valve Output (In 1990) U.S. $ 10,740,000,000 7.958 billion DM in Germany 484.143 billion yen in Japan of about 6.1 billion francs, Fatou (1987) UK 601 million pounds (1986).

In the just concluded two days ago, we got a good news to be expected: “Central Economic Zone” has been reviewed by two sessions, rose to national economic development strategy plan, formally incorporated into the state, “second Five-Year” Plan.

2010 Central Plains Economic Zone is proposed to Henan as the main v belt and the surrounding, supporting the central, east bearing the Yangtze River Delta, west mark in the north, Beijing, Tianjin, south of the Yangtze River Economic Belt. Including all regional and Southwest of Henan, Anhui Northwest, southeastern, southern Hebei and other surrounding areas. Following the “Yangtze River Delta”, “PRD”, “Beijing-Tianjin-wing”, after three major economic zones, another huge economic area, is currently in the region has formed metallurgy, building materials, coal, machinery, chemicals, power electronic and electrical appliances, automobile and motorcycle parts with manufacturing, textile, pharmaceutical, tobacco and other industrial systems. Strong growth trend, accelerated the rise of Central China Economic Zone, will also make it the Bohai economic circle and the new economic uplift, stimulate and promote national development as the backbone.

Since ancient times, the king of the Central Plains, the Central Plains Xing Xing is China. At present, the whole country and even overseas in hot Central Plains Economic Region, the significant increase in the national development strategy vision inspired and determined man inspired countless people. This decision making will bring great development in many industries, such as ball valve industry, agriculture, resources, tourism, building materials industry as all the necessary works, it is doing my part to walk in the vanguard of development position. Large national “five-second” commercial-Hangzhou railway network plan, passenger line.

Safety equipment market is a relatively fragmented market, mainly in the following areas:

First, the product of many types. Product contains a total of input, output, control of three electrical motor categories, dozens of sub-class product line, and each type of technology and product lines are different, which led to the majority of suppliers provide only one or a few types products.

Second, the number of suppliers and more. As the complexity of product lines, leading to large number of suppliers, but most display rack is small, no one vendor in the overall competitive advantage. China to provide security products on the market and have some pieces the size of the company sold nearly a hundred.

Third, the market level missing. Applications because of security products, highly fragmented, in addition to elevators, ball valve, rubber and plastic machinery and other key areas, also have applied in other industries, leading safety equipment market, from high end to low-end containing the application, different levels include the market has different vendors.

Valves made from scratch to accelerate the pace of China’s localization of the valve has always been an arduous task. Promote localization of the valve of the original, not easy, also encountered layers of resistance, more of a dispute. After the older generation valve industry experts and the nuclear industry sub-sector research and coordination of scientific research, can be used domestically, with domestic firm, in the localization of walking a fine line as far as possible for the country to save foreign exchange.

Ball valve industry in national economic development as an important part of preparing the manufacturing sector, play a very important role. As the level of our domestic and international valve manufacturing industry is still a certain gap between the advanced level, a lot of high parameters, high temperature and high pressure, high pound has been the key to the valve of the original imported, in order to urge the localization of the valve, the State Council issued ” equipment manufacturing industry to speed up the revitalization of a number of opinions “, the national authorities made in accordance with national requirements of major equipment, has made a series of major plans, led by the National Development and Reform Commission, China Machinery Industry Federation and the China General Machinery Industry Association along with the deployment of major equipment developed for the relevant areas of the valve domestic programs, and coordination with relevant departments several times, and now the valve domestic valve industry in China has formed a X431 master.

Localization of the valve is nothing original, and start from scratch, and from nuclear power plants and nuclear chemical, and petrochemical equipment, based on the localization of the beginning, in the 80′s 60 million capture of the first nuclear power plant a key project on the NTC thermistor project, and later engaged in Qingshan Nuclear Power Station, the Ningbo plant as a nuclear engineering valve pipe valve localization of pilot enterprises for the localization of the valve to make a contribution. China’s reform and opening up efforts to increase localization of the valve, the valve industry, with the rising level of manufacturing process, many companies using advanced resin sand casting off the production line blank box modeling, casting chemical composition using direct-reading spectrometer for rapid analysis by casting the rays of cobalt 60γ defect detection; forging die forging and using multiple fetal and other advanced technology to the forging. In the 21st century, accelerating the pace of localization of the valve, in the localization of major projects with sweatband performance.

After 20 years, especially in recent years, scientific research, design, manufacture and joint efforts of customers combined, joint research, has been fruitful. In the “Natural Gas”, “South”, “Three Gorges” million-kilowatt nuclear power plant, reconstruction million tons of ethylene, supercritical and ultra supercritical thermal power units, oil and gas pipeline, coal chemical industry, large vessels, the city sewage treatment projects and other major electric iron equipment and nuclear power, petrochemical, metallurgical, power plants and other fields, in addition to a small amount of high-parameter safety valve and control valve to be imported, the achievement of the localization of the valve, thus changing the material and equipment subject to long-term key valve foreign situation. And try as much as possible in the short term major projects and key valves to achieve localization, or part of the realization of localization, so that the valve manufacturing in China to lead the world.

West-East Gas Project in Xinjiang round of the South west, east to Shanghai, passing through 10 provinces, municipalities and autonomous regions, is about 4,000 kilometers, is expected to amount 12 billion cubic meters of gas, the total investment 120 billion yuan. As the entire project on the valves, instrumentation and automation related power balance equipment demand is very large, so the project for the domestic equipment industry, no doubt, tempting aroma of the block “big cake.” Therefore, the localization rate of increase, while natural gas equipment, how to take this chance and on the growth of national equipment industry, has become the industry issues of common concern.

The international electrical motor equipment market has a monopolistic competition, our enterprises should seize this opportunity to East Gas Pipeline Project, and rely on the vast domestic market and the revitalization of possible savings for the industry the necessary strength and growth of national equipment industry. At present, the international equipment market segmentation obvious, has formed a world-wide pattern of monopolistic competition, the domestic equipment manufacturing industry only by relying on a vast domestic market, possible savings for the industry to revitalize the necessary power.

It is reported that China Machinery Industry Federation has organized the preparation of a major technology and equipment research project feasibility report, and together with China National Petroleum Corporation, and the whole process management. Pipeline gas compressor units in a large, large-scale structure of valve forge welding, automatic control systems, station equipment, technology, key equipment for liquefied natural gas terminal and pipe crane and other construction equipment use, China Machinery Industry Federation to improve the equipment at home rate of a lot of work.

December 30, 2008, West-East Gas Project Completed round of the Shanghai section of the south and put into commercial operation. The east-west huge project, not only for western development, improve energy structure and strengthening environmental protection east of great significance, but also for many domestic enterprises supporting the development of a rare opportunity.

It is understood data cables, although the National Development and Reform Commission and the leaders of relevant departments are often coordinated with the National Office of Western Gas localization of major equipment issues, however, the efforts of the parties can not cover up the natural gas project in the localization of equipment problems. Back in mid-July 2000, West-East Gas Project to the outside world, including: engineering line of open, comprehensive cooperation with foreign countries; West-East Gas Pipeline Project not to engage in state-owned, foreign can be controlled, the proportion of unrestricted; cooperation unrestricted way, you can take a joint garden tool, cooperation or other forms.

Meanwhile, the China Machinery Industry Federation and actively promote public pressure ball valve Cheng Co., Ltd., Shenyang Blower Group and other well-known domestic enterprises and international GE Nuovo Pignone’s technical cooperation, and joint business offer.

Recently, the Ministry issued the “Basic Mechanical parts industry revitalization plan”, plans to 3 years of hard work, making the basis of major equipment spare parts suppliers in China to 70% of capacity. Encourage enterprises to cross-sectoral, cross-ownership mergers and acquisitions, efforts to form a number of internationally data cables, with annual sales of more than 50 billion of enterprise groups. Implementation of the program period from 2010 to 2012.

Mechanical parts based mainly refers to: bearings, gears, molds, hydraulic parts, pneumatic components, seals, fastener, etc., is an indispensable component manufacturing equipment, in part, directly determines the host of major equipment and product performance, level of , quality and reliability.

“Options” through 3 years of hard work, focus on energy development, transportation, and new rural construction, preparation of new materials, energy saving and comprehensive utilization of resources and other areas of the field of construction equipment needed to make breakthroughs in key parts of the bottleneck.

“Program” is also proposed to have 100 large-scale cultivation, the high level of professionalism, distinctive features, has a well-known brand products. Attract capital to invest in a variety of basic parts industry. Rely on existing resources, increase the country has bearings, gears, hydraulic components, seals, fasteners and other industrial clustering support and guidance to encourage businesses to gather industrial park, ball valve concentration Casting, forging, heat treatment of the centralized production, foster a number of specialized division of labor, industry chain collaboration, sales revenue exceeding 100 billion of the characteristics of industrial clustering. Provincial infrastructure components to support the construction of new cities industrialization demonstration base, to encourage the gathering zones have a number of conditions for national infrastructure components, “new-type power balance industrialization demonstration base.”

Leakage better deal, for the leak in the flange, to re-tighten the flange bolts that, if not enough, we must open to see the flange gasket for damage, leakage at the packing, must bear the packing gland If the packing is too loose, one must fill, if the body is directly on the pvc panel, low pressure, then you can weld that, if a high pressure direct to abandon it, safety first, for the leakage problem, the situation is not determined First, it may no related death, and then forced closing the second, the valve seat seal is broken, it is necessary to re-grinding, the valve core is damaged, it depends on the media impact erosion damage or be damaged, but both have re-welding the sealing surface.

where the leak, if only for the valve body to drain ball valve.

If the internal leakage sealing surface should be a problem, deal with it and see the effect of automatic packing machine surface.

Generally within the brass ball valve seat or valve core leakage sealing surface is damaged, it can grind the valve seat or valve sealing surface, but there is a special case if it is electric or pneumatic valves, there may be no set schedule. Leakage depends on

Also, because the valve seat ring usually made of plastic, so the ball in the choice of the structure and performance, to consider the ball of fire and fire, especially in the petroleum, chemical, and metallurgical sectors, flammable, tin devices and media types used in the system control valve, but also should pay attention to fire and fire prevention.
The ball usually rubber, nylon and Teflon as the seat ring material, so its temperature by the valve seat ring material constraints. Cut-off valve is used by the metal sphere in the role of the media, and pressed between plastic seat to complete the (floating ball valve). Valve seat ring in a certain contact pressure, electronic cigarette deformation occurred in some areas. Can compensate for this deformed sphere of manufacturing accuracy and surface roughness to ensure the valve sealing performance.

Typically, the double-adjustment, strict sealing, v belt, wear, reduced channel, the rapid opening and closing movement (1 / 4 turn open and close), high pressure cut-off (large pressure), low noise, there is the phenomenon of cavitation and gasification, a small amount of leakage to the atmosphere, the operating torque, fluid resistance of the piping system, the recommended valve.

Ball also applies to the light structure, low cut-off (pressure difference), corrosive media, the pipeline system.

At low temperature (cryogenic) equipment and piping system valve can also be used.

In the pipeline and gas pipeline to be laid in the main line in the ground, the need to use the full bore ball valve welded.

Regulate the performance of the requirements, the need to use with a V-shaped opening of the special structure of the valve.

In the petroleum, petrochemical, chemical, power, urban construction, the working temperature above 200 ℃ the pipeline system can use metal to metal sealing ball valve. In the metallurgical industry in the oxygen pipeline system, use the paper bag to the ball too strict fat.