Seal support system pressure tracking value
AssigneeAES Engineering Ltd.
InventorsChristopher John Carmody, Stephen Martin Shaw, Andrew John Stoney
Life of this patent
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Abstract
A pressure regulation tracking valve for maintaining the pressure of a gas relative to that of a process fluid includes a device, responsive to change in the pressure of the process fluid, for changing the pressure of the gas by substantially the same amount. The valve further includes a device for accommodating a pressure transfer medium for transferring the pressure of the process fluid to the gas pressure changing device. As a result, contact between the process fluid and the gas pressure changing device is avoided.
Claims13
A pressure regulation tracking valve for maintaining the pressure of a gas relative to that of a process fluid, the pressure regulation tracking valve comprising means, responsive to a change in the pressure of the process fluid, for changing the pressure of the gas by substantially a same amount, and means for accommodating a pressure transfer medium for transferring the pressure of the process fluid to the gas pressure changing means, whereby contact between said process fluid and said gas pressure changing means is avoided.
(canceled)
Dependencies are inferred from the claim text.