Pressure transmitter installation in a process line of a...

Details Pressure transmitter installation in a process line of a... Pressure transmitter installation in a process line of a...

2006-11-07

2006-11-07

Thompson, Jewel V. (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

Reexamination Certificate

active

07131336

ABSTRACT:
A flow control unit having a housing with a valve chamber. The valve chamber has an inlet and an outlet. The inlet of the valve chamber is placed in communication with the process circuit. A valve member is carried within the valve chamber. The valve member has an open position for allowing flow from the inlet of the valve chamber to the outlet of the valve chamber, and a closed position for preventing flow through the valve chamber. A pressure cell is disposed adjacent the outlet of the valve chamber. A closed pressure circuit is defined from the valve inlet, the valve chamber, and the valve outlet. A pressure sensor is disposed in the pressure cell and traverses the circuit at the outlet for measuring the pressure of the process circuit communicated through the closed pressure circuit when the valve member is in the open position.

REFERENCES:
patent: 6301969 (2001-10-01), Hess
patent: 6463806 (2002-10-01), Lung et al.

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