Infrastructure builds the focal point that is construction of our country economy, give catchment the project, especially huge of scope of sewage disposal project includes conduit, valve inside manufacturing industry of water treatment equipment already formed powerful water industry. For the development of valve industry, offerred good chance. Our country already entered WTO, the whole world is annual demand valve makes an appointment with 3 million tons. Should make full use of valve line of business belongs to labor pay of average per capita of difference of requirement of concentrated, work, our country is low, the developed country produces the advantage such as move to the developing country, move toward the platform of world economy actively. Divide a title to summarize the current situation of catchment valve and development.

At present state

There is 3000 size valve plant about now, among them Wen Zhou 600, zhengzhou is close many 200, shanghai many 150, liaoning 250, jiangsu, Fujian each more than 200, although the good and bad are intermingled, but product breed already amounted to 3000 many model, nearly 30 thousand norms. Ask in much breed, sealed function, intensity, adjust function of function, movement and current performance, especially sealed function, had great progress, before going backwards 10 years, the authoritative personage of association of town water supply has an industry logion to say 10 a powerful person of “ 9 leakage ” , although some are exaggerative, but it is a fact truly.

The numerous problem that creates valve industry existence basically is reforming and opening hind, market quickness expands, and company of original state-operated valve shuts to stop and turn in succession, machinist employment level is not originally high, then town enterprise () of civilian battalion enterprise, rapid development rises like emerge, starting point is low, technical force is very weak, equipment is pallet, product great majority is to imitate production, plus market disorder, give catchment used low-pressure valve especially, the problem is serious. Come nearly 10 years, be in business of a few valve drive, have apparent progress truly, some breed achieve international even advanced level, still a lot of enterprises undertake 2 times poineering. But with respect to whole, difference is very big still, a lot of jobs want to do. For this, make respectively 2010, the port with develop a program to having very technical progress, principal 2020.

Commonly used valve

In giving catchment the project, in low-pressure valve applies extensively, valve of particularly low-pressure large requirements (low-pressure valve is the valve) that points to nominal pressure PN≤1.6MPa, and middling pressure valve (PN2.5-6.4MPa) is less. And brake a powerful person, butterfly a powerful person is the basiccest the dominant product that uses the most extensively.
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