Pneumatic valve classification valve requirements of the influencing factors

Pneumatic valve classification valve requirements of the influencing factors

A, pneumatic valve key types:
1) Pneumatic v-type regulating valve
2) Pneumatic o-type disconnect valve
3) torsion cylinder valve
4) electromagnetic induction pneumatic butterfly valve
5) pneumatic straight driving procedure pneumatic butterfly valve
6) Electric control valve
Two, pneumatic v-type regulating valve:
Main uses and characteristics
A, the main use is A bevel rotary structure, it and the valve locator supporting facilities application, can complete the proportion adjustment; V-type valve core is suitable for all kinds of adjustment sites, with large rated flow coefficient, adjustable ratio, sealing effect is very good, zero sensitive adjustment characteristics, small size, vertical lying installation. Suitable for controlling vapors, vapors, liquids and other substances.
B, characteristics: it is a bevel rotating structure, composed of v-shaped oil circuit plate, pneumatic actuator, locator and other accessories; There is a similar original total flow characteristics of the hundred ratio; Double rolling bearing structure, running torque is small, with good accuracy and magnetic induction rate; Excellent cutting ability.
C, pneumatic piston rod actuator air compression as power device, according to the piston rod fitness movement to promote the folding arm to carry out 90 degrees of rotation, so that the valve fully automatic open and close. It consists of: adjusting anchor bolt, actuator housing, folding arm type, cylinder sleeve, cylinder shaft, piston rod, crankshaft, universal shaft.
D, pneumatic type control valve work of the original moving control valve by the actuator and regulating organization. The actuator is the driving force component of the regulating valve, which forms the corresponding driving force according to the size of the manipulation data signal pressure to promote the adjustment of organizational posture. The oil circuit plate is the regulating component of the pneumatic regulating valve. It also touches the regulating substance to adjust the total flow of the liquid.
Factors influencing valve requirements
Factors influencing valve requirements
From January to June in 2013, Wenzhou, a key valve production place in China, exported valve products 8109 batches, with a year-on-year growth of 0.61%, the export quota of 260 million DOLLARS, a year-on-year decrease of 2.98%, a continuous decline, and in 2012, 1-6 Wenzhou valve export quota increased to 42%, a significant gap between the two groups of data.
Valve required by the global economic environment harm is bigger, China’s valve field should calmly, improve their ability to import and export trade risk communication, especially of relatively low technical requirements of the medium generality valve products, engaged in many company, product homogeneity is more serious, overproduction, decreasing profit level, Many valve companies have been based on the expansion of export in order to survive, valve commodity export quota with gradual growth.
But expanding exports are not the panacea processing valve industry development predicament, also hard to avoid some problems through look glamorous export data information show slowly: many valve export company for the expansion itself export market share, from China’s market price competition countermeasure, malignant price competition continues to increase. Many small – and medium-sized companies are competing on price in order to obtain international order information. However, some small and medium-sized enterprises in the lower product price to obtain overseas orders, in order to better control the cost, usually shoddy. As a result, the finished products are not qualified and the credibility of China’s valve parts industry chain is jeopardized. ** Horror is that over time, China’s valve parts industry chain is also likely to suffer trade protection in the world market.
At this stage, valve exports are mostly cleared in DOLLARS, and the exchange rate risk caused by the appreciation of the RENMINBI is also adding fuel to the fire. Some valve manufacturers do not have solid product quality, fake and shoddy, harm the income of the same industry in China and the brand image of China’s valve export commodities. Regret, resulting in the valve field export gross margin continued to reduce.
Global economic recovery must still be a slow process, valve requirements by the global economic environment is relatively large, China’s valve field should calmly respond to improve the ability to communicate the risks of import and export trade, in the expansion of export at the same time, also can not release pressure on the development of China’s sales market. The premise of the company can carry out industrial structure upgrading, to the top valve commodity industry to forge ahead, such as crude oil, nuclear power plants and other national key development industries, imported valves domestic alternative market size can not be ignored.
According to statistics, in 2013, Chinese valve companies encountered export pressure to expand the situation, valve companies should strengthen innovation technology, from the total number of emphasis, the expansion of business scale to pay more attention to the pursuit of perfect quality, economic benefits, and actively develop China’s sales market, promote the reasonable development trend of China’s valve field. And subject to the technical requirements of other small and medium-sized valve companies, can take into account the new segmentation industry, such as heating water separator valve demand, improve the capacity of engineering projects supporting facilities, enhance the added value of the valve.
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