Selection of valves for pipelines
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Media, particles that tend to produce powder. Moreover, it tends to clump during extrusion. The pipes run from top to bottom. A shut-off valve should be added in the middle; what type of valve would be suitable? Is there a knife gate valve similar to the one below?
Can a pneumatic powder-cutting valve be used instead? Or there are special requirements. Such as pressure, toxicity, explosion hazards, etc.?
A valve that resembles the pattern shown by the original poster is called a gate valve； In fact, the common problem in such operating conditions is that the material above gets blocked after the valve is opened and fails to flow downward. Powder + particles + tendency to caking; it is best to use a valve with driven feeding, such as a rotary feed valve.
It depends on your requirements regarding tightness; it’s best to use a star-type unloading valve
Powder handling uses dust collection, with an electric rotary valve. Dust materials have been used in the battery industry before
The spool valve of the electro-hydraulic actuator is the structure you have drawn
The suggestion for floor 6 is acceptable; a star-shaped discharge valve, also known as a rotary discharge valve, is mainly used in applications such as discharging battery powder； Or a pressure-driven discharge valve, which can be used when the pressure behind the valve is higher than that in front of it; it enables precise regulation to prevent backflow.