The disc of lift check valve is located on the valve seat sealing surface. And the disc can be free to move up and down, other parts is like a globe valve. When the fluid passes, the disc is lift from the seat sealing surface. When the fluid back flow, the disc falls back onto the seat and cut off the flow. Depending on the condition of using, the disc can be made of full metal construction, or be in rubber or rubber ring on the disc holder.