Three=way valve with two=part valve body - closes one port initially, then closes another port with continued axial movement which brings body parts together

摘要

A shaft (25) drives a valve body (33) in its axial direction. The body is split into two parts (26, 33) which can move independently in the axial direction. The two parts are interconnected by a spring. The first part (33) of the valve body cooperates with a first port. When the first part closes the first port, a smaller second port remains open. With continued movement of the shaft towards the closed position, the two parts of the body unite and close the second port.