Influence of Similar Foreign Valve Product on Domestic Valve Market

Generally, the valve exists as a part of a complete appliance, its material, structure, fabrication procedure, quality, reliability directly influence the efficiency, energy consumption, pollution, life-span, security and other key indicators of the complete appliance. Therefore, the valve status and development will give rise to another round of technology innovation.

The most influence of similar foreign valve product on domestic market is the application of new material, the structure adjustment of the similar products and the extending of performance. This kind of influence makes a big difference,
and the influence differs in degree.

Firstly, the emphasis of the overseas valve new develop products is the application of new material. Because the existing anti-corrosive valve material is not able to completely satisfy its technological development, and the output of low-carbon stainless steel valve is low, foreign valve industry is accelerating the development of ultra low-carbon double-phase stainless steel valve. This kind of stainless steel bears the anticorrosion ability of pitch corrosions, intercrystalline corrosion, uniform corrosion under the environment of the chloride ion, the hydrogen sulfide, the carbon dioxide, the inorganic acid, organic acid and so on.

Secondly, the overseas valve industry are paying more and more attention to the
Nonmaterial’s application on valve. Nanotechnology is the advanced technology in the world science & technology, but nanomaterials can only achieve a sub-nanometer level and can only deal with valve's powder in the equipment manufacturing industry. The plastic particles originally is quite big, they will become orderly arrayed slight powder after the new craft treatment, and then the whole housing comes after the agglutination high temperature compression. This kind of plastic valve has good corrosion resistance, high intensity, and can take the place of the special stainless steel valve to apply in the petroleum, the chemical domain, especially the sweetener of in coal steam-electric plant, and some deep-etching conditions like that.

Thirdly, with the laser coating technology and supersonic speed coating technology, the nickel-base nonmaterial made by carbonyl process can be
dotted on the seal surface to improve the hardness to HRC62～70, and the improvement of wear resistance, abrasion resistance, corrosion resistance will
last the valve life span.

Fourthly, the application of ceramics. The ceramics may enhance valve's anti-corrosive performance greatly, and its service life and sealing property surpass those of the hard alloy. If we use the Ceramic as the seal, it has the advantage of high hardness, high temperature resistance, long service life and so on the merit. Most of the control valves' seals used in the power station is made of Ceramic ball.

Fifthly, develop different use rubber. HNBR resists the corrosion of the hydrogen sulfide, so it can apply for the valve sealing face. HNBR can also be used in the seat of API 6A gate valve, to the purpose of extends the service life and resists the hydrogen supplied corrosion.

The influence of the overseas similar products' renewal in advance on our country's valve industry is revealed in the following aspects: to be a substitute of China major project's mating valve; Fill the wide space of China Market; Enhance the industry competitiveness between our country valve enterprises and so on. In this respect, the influence of the overseas similar products really deserves distress.

A man without distant care must have near sorrow. The importance the valve enterprise attached on the distant care and the near sorrow can be considered as a standard whether a valve enterprise can strengthen and expand its existing status. The competition is fast changing, the society develops with a high speed, the one who satisfied with present situation must fall behind, so we have to accept new thing, new concept, and be good at innovating. Only in prosperity think of adversity, can obtain the Omni-directional field of vision, makes the enterprise healthy, to grow strong high speed.