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ZHENGZHOU FREE FLUIND CONTROL TECHNOLOGY CO.,LTD is a Chinese special valve supplier ,which can design ,fabricationg alomost all kinds of special valve . The product range include ceramic lined gate valve ,ceramic lined ball valve ,ceramic lined knife gate valve ,tank bottom angle valve ,tank discharge valve ,y type slurry valve etc .They are widely used in the alumina refinery ,mining industry ,coal washing plant ,steel plant etc . Most of them are installed at seriouly abrasive operating situations .



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Application of ceramic lined ball valves in flue gas desulfurization

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http://www.free-valve.com 1.General Flue gas desulfurization is the main action to control the discharge of SO2 in the coal power plant . There are several desulfurization process in the international market , that is wet desulfurization ,dry desulfurization ,semi dry desulfurization and ammonia process of desulfurization. The limestone-gypsum wet flue gas desulfurization process is the most popular for high efficiency ,large capacity ,good compatibility ,reliability . Beside that , limestone work as absorber ,have a low cost and a wide availability characteristic ,its by product gypsum can be recycled after water removing . At present , the limestone-gypsum wet flue gas desulfurization process is the main process among desulfurization in the coal –fired power plant . FGD ( Flue gas desulfurization ) is a process which absorb SO2 as well as other contaminative gas by lime stone slurry in the power plant , by the same time it can produce the lime gypsum slurry by pr
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Training Meeting About Valve Marketing in the 2017 year

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To improve the sales technology, FREE-VALVE company  invite professional teacher from Coverweb  technology company to give a meeting for international sales people.The topic is “ how to improve sales achievement based on valve technology ” www.free-valve.com 　 The teacher combi n ed the valve technology on the international sales method ,including international media marketing ,interaction marketing ,and gave a welcome speech to the sales people of FREE-VALVE  sales staff . www.free-valve.com 　    All the sales team have a large confidence to the international marketing of the industrial valve . The y  will apply this kind of kno w l ed ge to the actual working ,and supply more professional valve solutions to the end   u s er .
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The application of Pneumatic Ceramic Lined Double Gate Valve

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Particularly offered for solid-gas medium,the pneumatic ceramic double disc gate valve takes engineering ceramic as the main material for flow controlling.It is widely installed in air ash transporting system for coal power plant . Features 1.The sealing surface of the valve is made of toughened ceramics with abrasion resistance and long service life. 2.Two-side sealing can realized due to double plate structure of the pneumatic ceramic double disc gate valve. 3.In the process of opening and closing ,the valve plate can rotate automatically ,which leads to the grinding and polishing between the two sealing surface of the ceramic double plate gate valve. 4.There is a residue outlet designed for ceramic double disc gate valve,being used to conduct dust blowing periodically . Technical Parameters Size  : 2”~12”   DN50~DN350 Pressure:  Class 150   or PN1.0-PN1.6MPa Body material : WCB. Sealing Material :Toughened engineering ceramic Connection Type :Flange type Drive met
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