Model: sight glass 04.
Overview
The Industrial Technical Sight Glass Window is supplied as a sight / viewing glass. Listed geometry: size Od From 25mm to 200mm, equal shape. Optical / electrical data: transmittance 90% ~ 92%, sheet resistance Long working temperature ≤ 450 ° C, short time working ≤ 500 ° C. Temperature Long working temperature ≤ 450 ° C, short time working ≤ 500 ° C. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Shape | Equal |
|---|---|
| Size | Od From 25mm to 200mm |
| Model NO. | sight glass 04 |
| Connection | Welding |
| Item | Technical Sight Glass Windows |
| Process | Cut, Polish, Ground, Tempered |
| Property 1 | Borosilicate Heat Resistant |
| Shipment | by Sea, by Air, by Courier |
| Head Code | Hexagon |
| Tempered soda lime sight glass | Cost-effective for normal & medium-low temperature equipment without strong corrosive media; |
| Borosilicate sight glass | Wide temperature range & superior thermal shock resistance, perfect for high-temperature furnaces & thermal cycling chambers; |
| Stepped optical disc | Micron-precision tier structure with zero optical distortion, dedicated for optical sensors & spectral testing instruments. |
| Optional Material | Tempered soda lime glass / Heat-resistant borosilicate glass / High transmittance stepped optical glass |
| Visible Light Transmittance | 90% ~ 92% |
| Standard Thickness | 2/3/4/5/6/8/10/12/15mm |
| Tempered soda lime | -30ºC ~ 180ºC |
| Borosilicate glass | -40ºC ~ 300ºC |
| Available Styles | Flat sight window / Concentric stepped sight disc / Square embedded sight panel |
| Optional Processing | CNC edge grinding, hole drilling, AR anti-reflection coating, hydrophobic anti-fingerprint coating, silk screen scale printing |
| Safety Feature | Breaks into blunt granular fragments, shatter & splash proof |
| Temperature resistance | Long working temperature ≤ 450 ° C, short time working ≤ 500 ° C |
| Light transmission rate | 95% up |
| Hydraulic Water-resistant strength | More than test 40Kgf/cm ² |
| Thermal stability | T300 ° C |
| Linear expansion coefficient (0-300 ° C) | 3.3 × 10-7 K-1 |
| Softening temperature | 820° C |
| Supplier | Jinan Honhai Glass Company Limited |
What to specify when you request a quote
- Glass type and thickness — listed as “Tempered soda lime glass / Heat-resistant borosilicate glass / High transmittance stepped optical glass”; name the glass and thickness.
- Temperature and pressure — listed as “Long working temperature ≤ 450 ° C, short time working ≤ 500 ° C”; give working temperature, thermal shock and any pressure rating.
- Strengthening and safety — listed as “Cost-effective for normal & medium-low temperature equipment without strong corrosive media;”; state tempering, lamination or the safety standard.
- Outline and edges — listed as “Equal”; send a drawing with outline, holes and edge finish.
Engineering guides for this part
For material grades and coating options, see Infrared Window Glass: Material Options for Optical Sensors & Parts. How parts like this are machined and finished is covered in Precision AR Coating Process for Optical Glass Windows. For an application example, read Quartz Glass Windows for High-Temperature Appliance Modules. Before sending a drawing, check Thermal Conductivity of Quartz Glass & Fused Quartz: A Process Guide. A related standard product is AR Anti-Reflection Optical Window.
