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Topic Title: Reflex or transparent level gauge design calculation
Topic Summary: Equipment used in petrochemical,fertilizer industry to measure level
Created On: 03 April 2013 11:11 AM
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 03 April 2013 11:11 AM
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Joined: 03 April 2013

Gauge glass is the most simple and common use visual level measurement device.
Generally level tube can be classified as transparent or reflex types.

A transparent tube gauge glass is attached to the bottom and top (top connection not needed in a tank open to atmosphere) of the tank that is monitored, and the height of the liquid in the tube will be equal to the height of liquid in the tank. Since the process fluid level is view directly, the transparent gauge glass is normally used with opaque fluids. Transparent gauge glasses made from tubular glass or plastic can use for service up to 450 psig and 400°F. Some of the designs of transparent and high pressure gauges are suitable for corrosive and high pressure service up to 5000psi. The glass section is usually flat to provide strength and safety.

A reflex tube gauge glass design with one side of the glass section is prism-shaped, which aid in viewing transparent fluids. The glass is one side has 90-degree angles which run lengthwise. Light rays strike the outer surface of the glass at a 90-degree angle. The light rays travel through the glass striking the inner side of the glass at a 45-degree angle. The presence or absence of liquid in the chamber determines if the light rays are refracted into the chamber or reflected back to the outer surface of the glass.

This are the working of above equipment.Now can anybudy say on what base it design and what are the design calculation i consider??

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