tempered round sight glass (sight glass lens)

FOB Reference Price:Get Latest Price
US $2.5-15 / Pieces | 5 Piece/Pieces (Min. Order)
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Overview
Quick Details
Place of Origin:
Hebei, China (Mainland)
Brand Name:
Bright Pearl
Model Number:
series
application:
used in boiler for lever gauge and showing water position.
Technique:
cut, grind, etc
Structure:
Solid
Thickness:
10mm to 30mm
Working pressure:
6~25bar
working temperature:
250 ℃
Diameter:
50mm - 250mm
colour:
white and transparent
Shape:
square, round
Supply Ability
Supply Ability:
5000 Piece/Pieces per Week
Packaging & Delivery
Packaging Details
1pcs in a white paper box and then 50-60pcs/ carton, then in wooden case
Port
tianjin,qingdao,shanghai,ningbo
Lead Time :
within 7-14 days after receiving advanced payment

                                                     borosilicate glass disc

Company Infotmation

our company specializing in the production of borosilicate sight glass, tempered sight glass, a variety of water level gauge glass, tempered glass, various valves glass, level gauge and flow meter glass. The company has a certain scale, multi-species collection of industrial glass production and customers can request non-standard processing in one of professional manufacturers, my company covers an area of 50 acres, with advanced production equipment and management level, exports to Middle East, Southeast Asia, Europe, America and other countries and regions. The company takes "customer focus, to meet the requirements, continuous improvement" for the purpose. With high quality products and good reputation, win foreign customers rely on.

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Product Description

Borosilicate glass disc , borosilicate float glass, borosilicate sight glass

Borosilicate disc glass is one of transparent colorless glass, through wavelength is between 300 nm to 2500 nm, transmissivity is more than 90%. Coefficient of thermal expansion is 3.3. It can acid proof and alkali , the high temperature resistant is about 450°C. If course handling , the high temperature resistant can reach 550°C or so. Apply to lighting fixture , chemical industry , electron, high temperature equipment and so on.

 

Baode optical glass can produce 3.3 high borosilicate glass disc, with a good appearance, high temperature, resistance strong pressure, resistance acid and alkali, high transparency, After cutting, grinding, polishing, milling, Tempered and so on process to complete. We can produce  borosilicate glass sight glasses.. 1.7,2.0,3.0,3.3,4.0,5.0,6.0,8.0,10.0,12.0,15.0,20.0,25.0 mm thickness, etc.,
The dimension and thickness can according to the requirement.(Customization)

 

Application of borosilicate glass disc

Borosilicate glass 3.3 serves as a material of truly functional and wide applications:

1).  Household electrical appliance (panel for oven and fireplace, microwave tray etc.);

2).  Environmental engineering and chemical engineering (Lining layer of repellence, autoclave  of chemical reaction and safety spectacles);

3). Lighting (spotlight and protective glass for jumbo power of floodlight);

4). Power regeneration by solar energy (solar cell base plate);

5). Fine instruments (optical filter);

6). Semi-conductor technology (LCD disc, display glass);

7). Boiler, burner

8). Safety protection (bullet proof glass)

 

Borosilicate glass disc performance

 1).  Mechanical Performance    Density  ρ 2.23±0.02g/cm3

2).  Thermodynamic Performance

      Thermal expansion coefficient     (0-300) 3.3±0.1×10-6K-1  

 Softening point    820±10°C

      Strain point  516±10        Caloricity (20-100)    0.82KJ × (kg×K)-1

      Thermal coefficient  1.2W×m×K-1      

 3). Chemical Performance

      Water resistance          ISO719/DIN12111 HGB1/ISO720 HGA1

      Acid resistance   ISO1776/DIN12116 1 

Alkali resistance          ISO695/DIN52322 A2

4). Optical Property

      Refractive index       Nd: 1.47384      Transmittance  spectrum curve

 5). Electrical Property

   Specific resistance lgρ              8.0Ω×cm at 250

   Dielectric dissipation fraction tan σ (1 megacycle at 20): 38×10-4

   Dielectric constant                    ε=4.7

Common Size :

 

φ50×10±1mm

φ60×10±1mm

φ70×10±1mm

φ80×10±1mm

φ95×12~13mm

φ95×15~16mm

φ100×15~16mm

φ100×18~20mm

φ120×15~16mm

φ120×18~20mm

φ130×15~16mm

φ130×18~20mm

φ140×15~16mm

φ140×18~-20mm

φ150×18~20mm

φ150×18~20mm

φ160×18~20mm

φ165×18~20mm

φ180×18~20mm

φ180×24~26mm

φ200×18~20mm

φ200×24~26mm

 

Packaging & Shipping

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