VALVE ASSEMBLY

摘要

A valve assembly comprising an inner housing in which is provided a first port, a second port, and a third port there being located in the inner housing a valve member assembly which is movable between a first position in which the second port is connected to the third port whilst the first port is closed, a second position in which the first port is connected to the second port whilst the third port is closed, and a third position in which at least two of the first, second and third ports are closed, wherein the valve assembly further comprises an outer housing which Is separate from and encloses at least part of the inner housing, the outer housing having a first port and a second port, the Inner housing and outer housing each being provided with first mating parts, which engage to provide a substantially fluid tight seal between the Inner housing and the outer housing whilst enclosing a conduit for fluid communication between the first port of the inner housing and the first port of the outer housing, and second mating parts, which engage to provide a substantially fluid tight seal between the inner housing and the outer housing whilst enclosing a conduit for fluid communication between the second port of the Inner housing and the second port of the outer housing.