Valve is the control part of the fluid conveying system.It has the functions of cut-off,regulation,diversion,countercurrent prevention,stabilization,diversion or overflow relief.Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems.Valves can be used to control the flow of air,water,steam,various corrosive media,mud,oil,liquid metal and radioactive media.
Valves can be divided into industrial control valves and civil valves.Industrial control valves are mainly used to regulate process parameters such as medium flow,pressure,temperature and liquid level in the field of industrial automation process control.According to different classification standards,industrial control valves can be divided into different types:
(1)According to the regulation form,it can be divided into regulation type,cut-off type and regulation cut-off type.
(2)According to the material of the valve body,it can be divided into metal type,non-metal type and metal body lining type.
(3)According to the driving mode,it can be divided into electric type,pneumatic type,hydraulic type and manual type.
(4)According to the temperature range,it can be divided into ultra-low temperature valve,low temperature valve,normal temperature valve,medium temperature valve and high temperature valve.
(5)According to the pressure range,it can be divided into vacuum valve,low pressure valve,medium pressure valve,high pressure valve and ultra-high pressure valve.
It is expected that in the next few years,with the rapid development of China's economy and the improvement of industrial automation,the transformation and upgrading of China's equipment manufacturing industry,as well as the sustained growth of national investment in oil and gas,petrochemical,environmental protection,electricity,metallurgy and other fields,the overall scale of China's control valve market will maintain rapid growth.
Among the global market demand for industrial valves,oil and gas,including drilling and production,transportation and petrochemical industry,accounted for 37.40%,followed by energy,electricity and chemical industry,accounting for 21.30%and 11.50%of the global market demand for industrial valves,respectively.The market demand of the first three fields accounted for 70.20%of the total market demand.In the application field of domestic industrial valves,chemical industry,energy and electricity industry and petroleum and natural gas industry are also the main markets for valve sales.The market demand of valves accounted for 25.70%,20.10%and 14.70%of the total domestic industrial valve market demand respectively,accounting for 60.50%of the total market demand.
China Valve Industry Output Analysis and Forecast in 2019
According to the statistics published by Prospective Industry Research Institute,the forecast of production and marketing demand and analysis of transformation and upgrading of China's valve manufacturing industry shows that China's valve production reached 7.86 million tons in 2017,an increase of 2.77%compared with the same period last year.By the first half of 2018,the import volume of valves in China was 511.26 million sets,an increase of 25.1%over the same period of last year.In the first half of this year,the import value of valves in China was US$3632 million,down 0.5%from the same period last year.It is predicted that the output of valves in China will reach 8.3 million tons in 2019,and the compound annual growth rate in the next five years(2019-2023)will be about 3.02%,and the output of valves in China will reach 9.35 million tons in 2023.
Analysis on Development Dilemma of Valve Industry in China
1.The overall market concentration of the industry is low.Globally,the valve industry has a large number of enterprises,and overall,the competition is fierce.From a global perspective,most of the world's leading valve companies have landed in the capital market,and have experienced the process of using the capital market to promote and implement industrial integration.In contrast,the overall size of domestic valve enterprises is small,and even the leading enterprises in the top ranking industries are mostly not landing in the capital market,lacking long-term financial support,in order to achieve industry integration.
2.Most valve enterprises in China are still in the low-end market of the industry.
The main products of low-end industrial valves and civil valves market are cast iron valves and bronze valves.Valve products for this market are in great demand,with low technology content and low entry threshold.There are a large number of small family-type and workshop-type valve manufacturers.Some operators buy Valves without factory name,print famous brands and certificates of well-known manufacturers,and the market competition is fierce.But it is disorderly and the profit level is low.At present,more than 90%of domestic valve export enterprises belong to parts manufacturer or OEM manufacturer.Among them,quite a number of enterprises are in the field of low-end industrial valves and civil valves.
3.The gap between China and foreign countries is obvious.
Restricted by the overall development level of the industry,there is still a big gap between domestic control valve products and well-known brand imported products,mainly in the aspects of sealing,appearance design,service life,technical level of electric and pneumatic devices.Therefore,under the conditions of many key areas and complex working conditions,the control valves of well-known imported brands are still mainly used.In addition,in terms of brand awareness,product quality and technology level,foreign enterprises occupy a more obvious initiative advantage and position than domestic enterprises.
Analysis of Advantageous Factors for the Development of Valve Industry in China
1.Nuclear power"13th Five-Year Plan"to stimulate the market demand for nuclear power valves.
Nuclear power is recognized as a clean energy.With the development of nuclear power technology,its safety and economy have been improved and gradually praised by people.Nuclear power valves are large-scale equipment in nuclear power projects.With the rapid development of the industry,the demand for nuclear power valves will continue to expand.
According to the 13th Five-Year Plan for the Development of Nuclear Industry and other documents,by 2020,the installed capacity of nuclear power operation will reach 40 million kilowatts,and the annual power generation capacity of nuclear power will reach 260-280 billion kilowatt-hours.On the basis of the construction and operation of nuclear power capacity of 16.968 million kilowatts,the installed capacity of new nuclear power is about 23 million kilowatts.At the same time,considering the follow-up development of nuclear power,the nuclear power capacity under construction should be maintained at about 18 million kilowatts by the end of 2020.
2.Petrochemical special valves,ultra-low temperature valves and other products have a broad market demand.
China's petroleum and petrochemical industry is developing towards large-scale and large-scale,and will continue to maintain sustainable development in the next five years.Dozens of domestic ten million-ton refinery units and million-ton ethylene units are facing new construction and expansion.At the same time,the petrochemical industry is facing transformation and upgrading.Many energy-saving and environmental protection projects,such as hydroupgrading,waste recovery and utilization,have become petrochemical valves,flanges and forging.A new market space.
With the popularization and application of clean energy,more attention will be paid to the popularization of liquefied natural gas(LNG),and the demand for ultra-low temperature valves will also increase substantially.The key valves of ultra(ultra)critical thermal power units in China have been imported for a long time,which not only increases the cost of power construction,but also is not conducive to the technological progress of domestic valve manufacturing industry.In the field of large-scale gas turbines,the state is also investing considerable manpower and financial resources to encourage the introduction,digestion,absorption and innovation,and to change the situation that large-scale gas turbines and their key equipment rely on imports.In this context,Petrochemical special valves,ultra-low temperature valves,vacuum butterfly valves for ultra(ultra)critical thermal power units,steam reheat valves for large gas turbines and other products will face a broader market demand.
3.The mid-end industrial valve market is more mature
The main products in the middle-end industrial valve market are industrial valves with relatively relaxed use environment,generally carbon steel or stainless steel valves.The market demand of valve products for this market is large,and they need to meet the quality requirements of industrial grade.The technical content is high,and the qualified supplier qualification is generally set by the end-users.Therefore,there are certain barriers to entry of the industry,and the level of competition is lower than the low level.In the end industry valve and civil valve market,the profit level is high.Some large enterprises in the valve industry of our country have entered the international market earlier,matured in production technology and production technology,and established more stable cooperative relations with many international customers.The level of valve production has been greatly improved,and the output of valves has increased substantially.They have already occupied an important position in the middle-end valve market and have a certain degree of cooperation.Revitalize the foundation.