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US 2019/0072452 A1Published application
Valve manifold
OwnerJohn Leslie Johnson, James G. Johnsoninventors
Life of this patent
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Abstract
A valve manifold includes a valve body carrying pairs of laterally spaced piston actuated valves controlled by control modules operative to selectively pressurize and exhaust an outlet port connected to a fluid device and configured in groupings permitting varying valve functionalities.
Claims14
1-8. (canceled)
A method of detecting a leak in a test part comprising the steps of:
- pressurizing a high pressure line and a low pressure line with a high pressure pilot valve and a low pressure pilot valve, respectively, to close a high pressure valve and a low pressure valve, respectively;
- deenergizing an exhaust pilot valve and an isolation pilot valve to open an exhaust valve and an isolation valve, respectively;
- energizing one of the high pressure pilot valve and the low pressure pilot valve to open the high pressure valve and the low pressure valve, respectively;
- energizing the exhaust pilot valve to open the exhaust valve;
- and
- pressurizing a test part with high pressure air to detect a leak.
3 more elements
Dependencies are inferred from the claim text.