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device for indicating the position of the stem of a valve

A technology of indicating valve and valve stem, applied in the direction of valve device, identification device, indicating element, etc., can solve the problems of error and expensive manufacturer

Active Publication Date: 2018-06-15
BURKERT WERKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is why such a position indicator (more precisely, a valve position indicator) can lead to errors which can have serious consequences in process automation
[0008] Furthermore, it is expensive for manufacturers to provide different designs desired by users

Method used

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  • device for indicating the position of the stem of a valve
  • device for indicating the position of the stem of a valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] figure 1 A valve 10 comprising a valve driver 12 and a feedback unit 14 mounted on an end face of the valve driver 12 is shown. The valve driver 12 comprises an end wall 16 on which the feedback unit 14 is mounted.

[0039] The feedback unit 14 can be designed as a pure feedback module or as a control module.

[0040]The piston 18 is connected to a valve stem 20 which moves a valve element 22 movably arranged relative to the valve seat in a reversible and linear fashion to achieve the "open" and "closed" states of the valve.

[0041] The valve stem 20 is connected to a stem extension 24 protruding through the end wall 16 into the feedback unit 14 . It is also possible to provide a coupling element between the valve stem 20 and the stem extension 24 , or to omit the stem extension 24 and to protrude the valve stem 20 into the feedback unit 14 .

[0042] The feedback unit 14 comprises a sensor module 26 for detecting the position of the valve stem 20, which sensor modu...

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PUM

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Abstract

A means for indicating the position of a stem of a valve is provided. The device includes a valve stem switchable between a first position and a second position and a sensor module for detecting at least an end position of the valve stem. The device further comprises at least a first optical display element (58) and a second optical display element (60), the first optical display element (58) being used to indicate the first position, the first optical display element (58) being preferably a second optical display element (58) An LED, the second optical display element (60) is used to indicate the second position, the second optical display element (60) is preferably a second LED. The first end position indicator (66) is assigned to the first display element (58), and the second end position indicator (68) is assigned to the second display element (60).

Description

technical field [0001] The invention relates to a device for indicating the position of the valve spindle of a valve. Background technique [0002] In the automation industry, valves are often installed in large systems. For various reasons, such as in the case of maintenance, for example, situations arise where the process has to be interrupted, in which case such valves should be reliably closed and block any medium flow. Here, a position indicator that allows the user to see whether the valve is open or closed is helpful. [0003] Various devices for indicating the position of the valve stem are known in the prior art. [0004] Simple mechanical position indicators often only indicate the "open" or "closed" state of the valve. This means, for example, that the end of the valve stem appears in the window if the valve stem is in its upper end position. If the valve stem is in its lower end position, the window remains empty. Such a position indication is in some cases ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G12B11/00G09F9/00G09F9/33
CPCY10T137/8242F16K37/0041
Inventor M·费恩奥尔C·雅各布
Owner BURKERT WERKE