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  • Reflex Gauge Glass Used In Boiler - China

    price: contact company for price

    Reflex gauge glass, also called reflex sight glass, reflex level gauge

    glass, boiler glass and reflex level gauge. The material of reflex sight

    glass is usually borosilicate glass and aluminosilicate glass. Our

    reflex gauge glass is polishing and tough. Reflex gauge glass has high

    mechanical strength and high resistance to alkali and acid

    characteristics. Another important factor of the boiler glass is


    Reflex gauge glass is used to read the liquid level directly by eyes or industrial television. With the grooves, the reflex gauge glass has a few grooves which can make the level clearer and easier to be read.


    Material: borosilicate glass, aluminosilicate glass.

    Width: 25- 35 mm.

    Length: 70- 400 mm.

    Thickness: 15- 25 mm.

    Max pressure: 300 bars.

    Max temperature: 400 °C.

    Grooves: two, three or four grooves.

    Using life: more than 20 years.

    Standard: The products is strictly according to the standard of DIN7081.

    Accessories: Gaskets and mica sheet can also be provided together.

    Dimensions of reflex gauge glass ( mm)


    L W H

    RGG- 1 95 30 17 95 34 17 - - -

    RGG- 2 115 30 22

    RGG- 3 140 30 22

    RGG- 4 165 30 22

    RGG- 5 190 30 22

    RGG- 6 220 30 22

    RGG- 7 250 30 22

    RGG- 8 280 30 22

    RGG- 9 320 30 22

    RGG- 10 340 30 22

    RGG- 11 - - - 370 34 17 - - -

    Two piece of clear reflex gauge glass of about 280 mm and 140 mm length.

    Our usually length of the reflex gauge glass is from 70 mm to 400 mm, and can be customized according to requirements.

    A piece of thick reflex gauge glass with fine edge and clear surface.

    The thick reflex gauge glass is suitable in aggressive environment, such as acid, alkali, high temperature and high pressure.

    Pressure and temperature of reflex gauge glass

    Working environment TYPE A TYPE B TYPE H

    Pressure Temperature

    Solid environment 400 bar 120 °C 265 bar 120 °C 300 bar 120 °C

    150 bar 400 °C 180 bar 400 °C 200 bar 400 °C

    0- 10 bar 430 °C

    Hard environment, such as alkali or acid. 42 bar 253 °C

    Features and advantages

    Acid and alkali resistance.

    Borosilicate glass and aluminosilicate glass can resist acid and alkali, so that the gauge glass can work in aggressive environment. Reflex gauge glass is widely used in industry, where stable chemical property is an essential factor.

    Customize form and dimension.

    We have standard dimension in stock and we also accept customizing, which can meet most of your requirements.

    Reflex gauge glass is suitable for reading directly or by industry television.

    Reflex gauge glass is imprinted with a few longitudinal grooves, which increases the angle of refraction and can make it easier to read the liquid level. This makes it easier to read directly as well as by industry TV.

    No strip, bubble, scrap or crack.

    Two pieces of reflex gauge glass and a piece of transparent gauge glass are together.

    The contrast of reflex gauge glass and without groove gauge glass is shown and the grooves make the liquid level clearer.


    The reflex gauge glass is used in various equipment, especially the liquid level needed to be read by industry television.

    Industry boiler.

    Some instruments.

    A piece of clear reflex gauge glass is installed in a part of the boiler.

    Reflex gauge glass is widely used in industry boiler to control the level of the water. There is a set of industry boiler with a reflex gauge glass to see the water level.

    Industry boiler is widely used in industry and reflex gauge is necessary to observe the liquid level.

    Package and transportation

    In order to avoid breaking, reflex gauge glass is packaged in 5 layer corrugated cartons or pallet, with foam or bubble wrap.

    We can also pack the reflex gauge glass according to customers' requirements.

    Contact us immediately if you are interested in any of our gauge glass. And you can email us at sales at gauge- glass dot com if you have any questions.

    Company Contact:

    • Phone: 863188166777

    • Address: Industrial zone No 88, Hengshui City, Hebei provin, hengshui, China

    • Email: Email

    Published date: April 16, 2016 -

    • Business Description: Dongyue Industry Co., Ltd. specializes in manufacturing all kinds of gauge glass for more than 10 years. We have professional technicians, skillful workers, professional salesman and advanced machines. We can promise to supply high quality gauge glass with accurate dimension, polished surface, well ground edge, high pressure and temperature resistance and stable chemical property.

      Why choose our gauge glass?

      High working pressure.
      Our thick wall sight glass is designed for high pressure environment. It can work in pressure as high as 500 bars.
      High working temperature.
      The gauge glass made of borosilicate and quartz glass material is suitable to high working temperature. The borosilicate gauge glass highest working temperature is 600 Â C. The quartz gauge glass can work in 1000 Â C for a long time.
      Corrosion resistance.
      Gauge glass has stable chemical property. It's acid and alkali resistance ability is much better than stainless steel material.
      Clear liquid level.
      We find ways to make the liquid level clear for reading. Our reflex gauge glass and tubular gauge glass with red line make the liquid level clear for reading directly or by industry television.
      No contamination to liquid.
      Glass material is stable and will not contaminate the liquid in the container which suits for drinking water tanks.
      Friendly to environment.
      Long using life.

      Contact us immediately if you are interested in any of our gauge glass. And you can email us at sales@gauge-glass.com if you have any questions.

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