Recently, FREE-VALVE company ceramic double disc gate valve have been exported to some power station project in Pakistan
 
The pneumatic ceramic double disc gate valve is mainly used in Feeding stage ,Fluidization & boosting pressure stage ,Conveying stage during the bin pump conveying system.The feeding valve will be opened when the bin pump running ,the material will fall of into the bin pump by gravity . When the level gauge send a signal of full or reach to the setting time , the feeding valve will be closed automatically . During this stage ,level gauge works as main control component ,feeding time works as auxiliary method . If the material reach to the level or setting time ,the feeding valve will be closed automatically .