ZONED MANIFOLD ASSEMBLY FOR SOLENOID VALVE CONTROL SYSTEM

摘要

A zoned fluid control system in a valve manifold system has a plurality of manifold blocks connected together and a plurality of control valves mounted to the manifold blocks with the control valves being electrically actuated and pilot pressure operated. The plurality of manifold blocks forms at least first and second separate pilot pressure passages of a respective first zone and second zone not connected to each other for supplying a respective first set and second set of control valves with independently controlled pilot pressure. A pilot supply valve selectively supplies pilot pressure and shuts off pilot pressure to the second pilot pressure passage without affecting the pilot pressure to the first pilot pressure passage thereby disabling the second set of control valves as a separate zone independent from the first set of control valves.

主权项

1. A valve manifold assembly having a plurality of manifold blocks connected together with valve stations on one surface of each manifold block, said valve manifold assembly comprising:
a first pilot pressure supply being operably connectable to a first set of control valves that are electrically actuated; said first set of control valves being mounted to a first set of valve stations on said manifold blocks; a first pilot pressure passage being operably connectable to said first pilot pressure supply for supplying pilot pressure to said first set of valve stations of said valve manifold assembly; a second pilot pressure supply being operably connectable to a second set of control valves that are electrically actuated; said second set of control valves being mounted to a second set of valve stations on said manifold blocks; and a second pilot pressure passage being operably connectable to a pilot supply valve for selectively supplying zoned pilot pressure to said second set of valve stations of said valve manifold assembly such that said second set of control valves may be deactuated if pilot pressure is shut off thereto while said first set of control valves remain connected to said pilot pressure.