Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1995-09-18
1997-04-29
Nguyen, Hoang
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
137556, E03B 707, F16K 3700
Patent
active
056239637
ABSTRACT:
A modular valve position indicator which interfaces with a valve, actuator and other auxiliary equipment meeting NAMUR standards is described. The position of the valve within the flow circuit is indicated by at least one of an LED display and color coded indicia. A drum having the color coded indicia thereon, rotates through a window defined by members of the indicator in response to the rotation of the valve.
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VDI/VDE 3845-Handbuch Regelungstechnik, "Stellgerate fur stromende Stoffe", 1989, pp. 1-5.
Charles M. Simchera, Part-Turn Valve & Actuator Standardization, 1995, pp. 14-24.
Beckman Bryan A.
Kunz Christopher J.
Kunz Ross S.
Stommes Wallace F.
Nguyen Hoang
StoneL Corporation
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