Double valve constructed from unitary single valves

摘要

A double valve (10) is constructed from first (11) and second (12) unitary valve assemblies each having a respective inlet port (22,27), a respective outlet port (23,28), a respective exhaust port (26,32), a respective first cross-mirror port (24,30), and a respective second cross-mirror port (25,31). A first plate (17) is coupled to the first and second unitary valve assemblies and includes respective passages to provide a common inlet port coupled to the respective inlet ports of the first and second unitary valve assemblies, a common outlet port coupled to the respective outlet ports of the first and second unitary valve assemblies, and a common exhaust port coupled to the respective exhaust ports of the first and second unitary valve assemblies. A second plate (18) is coupled to the first and second unitary valve assemblies providing a first cross-connection between the first cross-mirror port of the first unitary valve body and the second cross-mirror port of the second unitary valve body, and providing a second cross-connection between the second cross-mirror port of the first unitary valve body and the first cross-mirror port of the second unitary valve body.