Ball Valve,Ball Valve Information

1, ball valve body materials to identify products by paint, the color table below body material cast iron, malleable cast iron ductile iron carbon steel acid-resistant steel, stainless steel alloy.

Recognition of gray paint in the color blue in the black silver blue

Note: (1) acid-resistant steel, stainless steel is not allowed to paint

(2) copper alloy, painted

2, in order that the valve sealing surface of the material product, should drive hand wheels, handles, panels identify hand painting, the color table below requirements.

Sealing surface material copper alloy steel, stainless steel tube Babbit acid boride hard alloy nitriding steel alloy plastics and rubber cast Monel

Red and yellow paint color identifying a large blue sky blue sky blue yellow purple black in the green

Note: (1) seat and sealing surface material is not open and close documents, press the coloring materials of low hardness.

(2) carbon fiber, coating the top of the valve cover: safety valve, reducing valve, steam trap or valve cover painted valve cap.

3, the transmission mechanism of the paint color, according to the following provisions:

(a) electrical installations: Ordinary painted in gray, triple (outdoor, explosion-proof, corrosion) type coated end of the blue.

(2) pneumatic, hydraulic, gear drive and other drive mechanism, with the paint your product machine screw.

Relief valve in use, a common fault with noise, vibration, and pressure regulator valve radial clamping failure and so on.

Hydraulics components in the noise-prone and generally considered to be the pump valve, relief valve and electromagnetic valve turned around so the main valve. A lot of noise factors. Relief ball valve with flow noise and mechanical sound of two kinds of sound. Mainly by the oil flow rate of sound vibration, cavitation and hydraulic impact of noise generated by other reasons. Mechanical sound from the valve in the main part of the impact and noise generated by friction and other factors.

Pilot-type relief valve pilot valve part is a vibration prone position shown in Figure 3. In case of overflow when the high-pressure, pilot valve axial opening is very small, only 0.003 ~ 0.006 cm. Flow area is small, the wheel loader rate is high, up to 200 m / s, can lead to uneven pressure distribution, the poppet valve radial force imbalance vibration. Another cone and cone seat valve produced by processing ellipticity, dirt port pilot valve and regulator spring deformation, stick, cone valve can also cause vibration. Therefore, the pilot valve is generally believed that noise vibration source location fastener.

Because elastic element (spring) and the moving mass (cone valve) the existence, constituting a condition of oscillation, while the pilot valve chamber was underway before the role of a resonant cavity, so the cone valve can lead to the occurrence of vibration of the valve after resonance and noises, occurred more commonly associated with noise, there is intense pressure to ramtron fram.

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 ball 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 pressure washer 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 consensus.

After 20 years, especially in recent years, launch x431 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 engineering 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.

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 roller bearing country to save foreign exchange.

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 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 wiper blade 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 performance.

For the current gas, ammonia pipeline technology, some drawbacks, Shanghai Valve Factory Yong Long pushed a comprehensive analysis and the development of pipeline ball valve – QDQ series pneumatic emergency shut-off valve. Comprehensive solution to the traditional products in the gas transportation deficiencies.

1. Because of pipeline transportation of natural gas desulfurization ago contains a lot of hydrogen sulfide (which is a highly toxic and corrosive gas.) Even after the desulfurization of natural gas, there are still remnants of hydrogen sulphide. Therefore, selection must be selected pipeline valve corrosion resistance to sulfur material;

2. The general city hundreds of kilometers of gas pipelines are data cables, only regular patrols, inspection, and sometimes complex pipeline through the region, the media may result in serious leakage of fire accidents. Especially closer to the pipeline from the city to prevent the leakage of the valve is particularly important;

3. Pipeline, once operational, not allowed to stop within a few years tin can, does not allow for a moment stopped, but there is no overhaul period. Series in the pipeline on the pipeline valve failure, serious consequences. Therefore, wearing parts of pipeline valves requires long life; control officers generally or in the station control room, requires a reliable control valve performance, and require protection and explosion-proof valves have their own measures. Especially the long opening of the valve, requiring mutations in the case being, done and accurate cut. Therefore, a focus on reliable control performance.

Pneumatic emergency shut-off valve is a combination of power balance, check valves, solenoid valves and pneumatic valves advantages, the use of cut-off valve of the lift structure and the principle of check valves to prevent the media back from the multi-spring pneumatic diaphragm actuator or floating piston actuator and valve components, the receiver signal conditioning instrumentation, control, cut off the fluid in process pipe, turn on or switch. Has a simple structure, responsive, reliable action and so on. Shut-off valve of the gas supply requirements of filtered compressed air, flows through the valve body of the media should be free of impurities and grain-free gas.

Emergency shut-off valve installed in the liquefied petroleum gas, natural gas, ammonia and gas pipeline, and supporting the use of remote gas sources, the use of air control valve to open – close to the pipeline or storage tank leaks or when the fire occurred, staff long distance speed manual in the air pressure relief, or when the temperature ≥ 80 ℃} {fusible alloy melts, and the cylinder automatic pressure relief valve, emergency shut-off valve fast closure of ≤ 5 seconds stanch, to play a security role . Widely used in chemical supply pipe network system, gas heat the factory floor, gas boiler room safety facilities and silicone bra accommodation.

KSB Group, Germany, South Korea last week completed a valve specialist Seres Co Ltd acquisition. The global leader in the construction of large merchant shipyards are distributed in China, Japan and South Korea, the acquisition is part of the strategic plan KSB Group, is expected to lead the group in the East Asian market for growth of marine valves, to enhance its business prospects in this area market position. In addition to the pump, the brass ball valve is the second largest German manufacturer of main product; for closed loop and open loop control and monitoring of pump and valve automation products have become increasingly important.

To date, KSB valves cryogenic vessels used mainly to carry LNG, in this application field, KSB has been a leading supplier. With the South Korean electrical motor company manufacturing the product, KSB to expand its range of marine valves and related components. Seres Co Ltd in the production of low-temperature valve and valve covers, and valve control and monitoring equipment. In addition, the South Korean company also manufactures hydraulic and pneumatic actuators.

KSB is the world leader in pumps, valves and related fastener systems manufacturers, whose products are suitable for industrial applications and construction services, water and waste water management, and energy and transport sectors. The company is headquartered in Frankenthal, Germany, through the establishment of sales and marketing departments, manufacturing plants and service centers, and its operations in all continents. The warning light company more than 14,500 employees generated nearly 20 billion euros in total sales.

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.