Title:
REGULATING VALVE CONTROL MECHANISM
Document Type and Number:
Japanese Patent JPH04282004
Kind Code:
A
Abstract:
PURPOSE: To achieve the valve opening control by means of a positioner employing an electric feedback control means.
CONSTITUTION: A positioner 11 is connected to a regulating valve 10. The positioner 11 realizes feedback of the detected signal of a valve stem displacement sensor 18 which is provided in the vicinity of a valve stem 15 of the regulating valve 10, and makes a calibration of the valve opening. An abnormality detecting means 19 which receives the detected signal of the valve stem displacement sensor 18 and makes a judgement of the working condition of the regulating valve 10 and the positioner 11 is connected to the valve stem displacement sensor 18.
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Inventors:
NUKUI KAZUMITSU
Application Number:
JP6895591A
Publication Date:
October 07, 1992
Filing Date:
March 08, 1991
Export Citation:
Assignee:
TOKYO GAS CO LTD
International Classes:
F15B9/07; F15B20/00; F16K37/00; (IPC1-7): F15B9/07; F15B20/00; F16K37/00
Domestic Patent References:
| JPS5930696A | 1984-02-18 | |||
| JPS5030539U | 1975-04-05 |
Attorney, Agent or Firm:
Koji Mikami