This type of valve has two independent valve core seals, which form a leakage chamber connected to the atmosphere during normal operation. In the event of occasional accidents or product leaks, the product will flow into this leakage chamber and be discharged from the discharge port, without causing contamination or mixing of the product; When the valve is in the open state, the leakage chamber is closed, and there is no product overflow during the normal operation of the valve. Therefore, the transported products can flow from one pipeline to another. This type of valve can be CIP cleaned.

The position of the valve disc during the switching process of the externally cleaned double-seat mix-proof valve