Trousers Valves

This type of valves divides the free flow of abrasive material into two ways, it has piston driven double flaps, it provides sealing metal to metal with a hard non-wearing ring around the flap. It is used in places where the material should not remain in the valve after dosage. The dead point is almost zero inside the valve, there is no material left, the materials do not mix with each other in different material passages.