Прозрачное стекло для бойлера с высокой термостойкостью

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Price:2,98 $ - 10,98 $
Price in USD:Details


Product Overview


Product Description

high temperature resistance boiler sight glass transparent level gauge glass  

borosilicate boiler level gauge glass: reflex type and transparent type.

Size & design: accept customized logo according to customer's requirement, edge can be polished or frosted as requirement.

Product Name
Level gauge glass
Aluminosilicate glass,borosilicate glass
91.8%(8mm), 91.9%(1mm)
Tensile strength
Compressive strength
(0-300) 3.3±0.1×10-6K-1
Poisson's ratio
Coefficient of thermal expansion
(0-300) 3.3±0.1×10-6K-1
Thermal conductivity
Softening point
Annealing point
Strain point
Electrical resistivity
>1018 Ωm
Dielectric constant
4.6 1 MHz, 25

1) Factory direct supply.
2) Operating Temperature: 400℃.
3) Excellent visual and chemical performance: acid-resistance, alkali-resistance, good thermal stability.
4) Health care and environmental protection.
5) No air bubble and no air line.
6) Excellent electrical insulator.
7) Matched gaskets available: non asbestos gasket, graphite gasket and mica gasket.

Transparent level gauge glass, also called transparent sight glass, transparent level glass and transparent level gauge, is usually made of borosilicate glass and aluminosilicate glass. The glass is manufactured into the strip shape and used in boiler or some instruments for observing the liquid level.

Reflex gauge glass is used to read the medium level in the boiler or other tanks. The one side of the glass which is exposed to the medium has a prismatic surface and another side is smooth. The medium level inside the level gauge is indicated as the result of the light refraction principle, since the liquid filled area completely absorbs the rays of light and appears dark, whereas the rays of light are totally reflected in the
gas/air filled area which appears bright.

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Packing & Shipping


1. White paper box for each piece, 50 pieces in one carton, or as customer`s requirements.

2. Wooden crates worthy for ocean and land carriage.


1. 30% deposit and 70% before shipping, FOB Qingdao Port.

2. Sample Order and small order will ship by DHL, TNT, FEDEX, EMS and UPS. It will take 7-10 working days since payment arrived.

Our Company

Advantage of us

1. 16 years experiences on glass manufacturing and exporting.
2. Top quality glass with CE, CCC certificate, exporting to more than 80 countries in the world.
3. Unique designed strong wooden cases, solving the problems of breakage.
4. Dockside warehouses beside three of China main container seaports, ensuring convenient loading and rapid delivery.
5. Full range of flat glass supply, offering one-stop purchase.
6. Professional sales team, offering personalized and dedicated services.

Contact me

0.0274 s.