Aperture diaphragm valves are used as shut-off valves for controlling the outlet between bag unloading and storage tanks; they are developed by our company based on the headquarters' product for bulk bag unloading stations. They can be used for: flow control from the aggregate hopper to 25kg small buckets; product flow control from the drying tower to small buckets; flow control valves between conical or drum mixers or conversion tanks; equal-weight flow controllers for two 25kg small buckets; unloading valves for the desktop box; discharge valves for feeding hoppers; flow control valves for packaging equipment; uniform and balanced mixing of 25kg small buckets of paint; flow control for 20kg small buckets; and flow control from simple channels to small packaging.