How to select tank bottom valve?
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 being flushing . Th