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Pressure Gauge For Highly Viscous Fluid

09/03/2010 4:45 AM

A vertical storage tank containing highly viscous fluid (like concentrated grouting) with an outlet at bottom.
The volume of storage may varies from time to time.
If I want to measure the pressure near to the oulet (bottom), what kind of equipment shall I need?
Million thanks

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Guru

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#1

Re: Pressure Gauge For Highly Viscous Fluid

09/03/2010 3:27 PM

You might try a suitably calibrated strain gauge mounted on the outside of the tank near the base.

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Guru
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#2
In reply to #1

Re: Pressure Gauge For Highly Viscous Fluid

09/03/2010 11:17 PM

Diaphragm type could be tried.

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Guru
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#3

Re: Pressure Gauge For Highly Viscous Fluid

09/04/2010 4:13 AM

You tap in to the tank or pipe with a large id connection, feed this to a vertical volume chamber filled with air or a gas of your choice. Mount your pressure gauge at the top of the chamber. it will reflect the pressure without being in contact with your viscous fluid. However if you are using a grout or some mixture which will harden up after a while you should fit a back flush connection in top of chamber.

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#4

Re: Pressure Gauge For Highly Viscous Fluid

09/04/2010 7:27 AM

Use a level sensor and with the appropiate electronics to give you pressure instead of level.

Pressure is equal to height times density.

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#5

Re: Pressure Gauge For Highly Viscous Fluid

09/06/2010 4:15 AM

If you have a large ( At least 250mm) flange connection at the bottom, you can use a strain gauge on a blank flange. the entire tank may be installed on strain gauges, but this becomes very costly. However, you may also use ultrasonics from the top where it is mounted contact free, and will continuously monitor your level.with the appropriate amplifier you will be able to read in liters or tonnes, or pressure, at any time, since pressure is directly related to height.

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