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Shanghai Automation Instrumentation Co., Ltd.
Address:No.191 Guangzhong Road (West) Shanghai
Tel:86-21-59189606
Fax:86-21-60917975
Website:www.sc-saic.com/english
E-mail: tom.saic@gmail.com

Reason Analysis of Metal Rotor Flowmeter Pointer Jamming
Release time:2017-09-26   Clicks:866

Metal rotor flowmeter in the course of the phenomenon will appear to float the card, this article to analyze why the float was stuck? How to deal with it?

First, the float does not move caused by the pointer does not move

        The body inside the float does not move, with the magnet will not move, metal tube float flow meter pointer will not move. So to remove the metal tube float flowmeter inside the float, analysis of the reasons for the float stuck.

(1) stop deformation caused by the deformation of the float

           As the staff of the inadvertent, fast switch valve, resulting in flow gauge pressure is too large, so that flow meter only deformation. The archive deformation will make the float unable to move, the pointer does not move. In the case of

(2) the cleanliness of the media caused the float stuck

         Metal rotor flowmeter of the float stuck, but also related to the cleanliness of the media. Because there is a magnet in the float, if the medium contains iron, it will be adsorbed by the float, so the float is stuck. Some small particles, will make the float activity is not flexible, and stuck, so to remove the float, to clean up.

Second, the medium pressure is too small lead to float can not be top up.

       Because the metal tube float flowmeter principles are installed vertically, the float has a certain gravity, if the medium pressure is too small, the natural float on the top can not, the pointer can not move with the float.

Third, the range selection is not appropriate.

       Each pipe diameter, are a certain measurement of the upper and lower limits. If the medium flow does not reach the lower limit of the flowmeter measurement, the flowmeter will not be indicated and the pointer will not move.

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