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Tank bottom angle valves are divided into disc opening into the valve and disc opening into the tank . Sometimes ,they are also called open-down type and open-up type . The difference between the two types of tank bottom angle valve is the following : O pening into the tank type is a special kind of globe valve . When the valve opened, valve stem will move upward and disc will go the inner of tank  . However ,for the tank bottom angle valve (opening into the valve ) type ,when the valve disc rising ,valve will be opened and valve disc will be hidden into the valve body . As opening  into the tank type  ,the fluid flowing besides the inlet and outlet of the valve rate is quite high . So abrasiveness will be occurred   on the valve disc at some extent .For this structure ,the required axis distance will be little ,so it can save the space cost . For opening into the valve type ,the valve disc will hidden into valve body , ,it can protect the valve disc from ...

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 .

In the ash disposal system of coal power plant , ceramic lined valve is a important component of dry ash transporting system and pipeline system .How to make these valves works well in their position ,it is important to select right valve at for right position .   Refer to pneumatic transporting ash system ,we have to study the component of bin pump and its working theory . Bin pump is make up of feed valve ,boosting valve ,bleeder valve ,pump body and pipeline ,The control air source and conveying air source can be the same ,of course it can be set alone . The conveying pump is work to convey the coal powder , it have a high automatic equipment whose process is controlled by PLC. The system mainly include feeding equipment ,pneumatic bleeder valve ,pump ,gasification, pipelines and valves . There are four stage during the bin pump conveying process : Feeding stage : The feeding valve will be opened when the bin pump running ,the material will fall of into t...

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...

Valve is a kind of control element with function of shut off ,control ,diversion ,anti-back flow etc . There are lots of valve types from simple to complex equipment . The valves can used to control the fluid such as air ,water ,steam ,corrosive medium ,slurry ,oil etc . The valves can also be classified according to the material ,such as cast iron valve ,casting steel valve ,stainless steel valve ,hascrome valve ,plastic valve，duplex stainless steel  and so on . Pneumatic conveyor is driven by the compressed air , transporting the powder material from on end of the sealing vessel to another end .The applied industry is widely ,take the following as an example : Power industry : Coal powder ,coal ash and blaster furnace slag Building industry : Cement and lime powder Others : Any powder and particle material in food and medicine industry It is very important for selecting the correct valves in pneumatic conveyor system .The requirement of the valve is anti high temperature ,...

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...

Compare to the general metal valves ,ceramic valve have stepped  into the industrial field ,especially some abrasive operating conditions ,such as mining industry ,coal -fire industry ,lithium battery industry etc . The common feature of these industries is that the medium are tough abrasive ,they easily wear out the general metal meterial .For the valves and pipes ,they have a short life time .Not only the maintenance cost are so high ,but also the system will be shut down ,those will give a bad effect to the productivity . How to slove this problem?  A study shows that engineer ceramic material have a high hardness and anti-abrasive peformance . At the same working situation ,ceramic 's lifte time is about 5 times of metal material . Maybe some people think ceramic is easy to break and fragile . Don't worry that question now . Some ceramic material have add flexibilizer component ,and become engineer ceramic ,not for the civil using . As the result ,the engi...