Our Products
Stepped Sight Glass Disc for Industrial Viewing Applications
Precision-machined stepped sight glass discs designed for secure installation in industrial sight glass assemblies. Available in borosilicate glass, soda lime glass, aluminosilicate glass, fused quartz, sapphire, and other custom materials for high-temperature, high-pressure, and corrosive environments.
Non binding • Usually a response within 24 hours
Certified quality
Technical data
Product Overview
Custom Stepped Sight Glass Disc Manufacturer
Stepped Sight Glass Discs are specially designed with a precision-machined shoulder (step) that allows the glass to fit securely into recessed housings, flanges, and sight glass assemblies. The stepped profile improves positioning accuracy, sealing performance, and mechanical stability compared with conventional flat sight glasses.
I-LUMISTAR manufactures custom stepped sight glass discs in a variety of materials including borosilicate glass, soda lime glass, aluminosilicate glass, fused quartz, and synthetic sapphire. Products can be supplied according to customer drawings, DIN standards, OEM requirements, or special engineering specifications.
These stepped sight glasses are widely used in pressure vessels, reactors, pharmaceutical equipment, chemical processing systems, vacuum chambers, food processing equipment, and industrial observation windows.
Stepped Sight Glass Disc — Technical Data
| Parameter | Specification |
|---|---|
| Product Type | Stepped Sight Glass Disc |
| Shape | Circular / Square/Custom |
| Structure | Single Step / Multi-Step |
| Diameter Range | 20 mm – 500 mm |
| Thickness Range | 3 mm – 50 mm |
| Step Depth | Custom |
| Step Width | Custom |
| Surface Finish | Ground / Polished |
| Edge Finish | Chamfered / Polished |
| Material Options | Borosilicate, Soda Lime, Aluminosilicate, Quartz, Sapphire |
| Custom Drawing | Accepted |
Stepped Sight Glass Product Reference
Material Options
Borosilicate Glass
Excellent thermal shock resistance and chemical durability.
Soda Lime Glass
Economical solution for standard industrial applications.
Aluminosilicate Glass
Higher mechanical strength and temperature resistance.
Fused Quartz Glass
Superior thermal stability and optical performance.
Sapphire Glass
Exceptional hardness, pressure resistance, and scratch resistance.
KEY FEATURES
Precision Stepped Design
Machined shoulder ensures accurate positioning and reliable installation.
Improved Sealing Performance
Provides better gasket contact and reduced installation stress.
Multiple Material Options
Stable performance in corrosive chemical environments
Custom Manufacturing
Custom diameters, step dimensions, thicknesses, holes, and edge finishes available.
High Temperature Resistance
Material selection available for temperatures from standard industrial service up to extreme thermal environments.
Excellent Optical Clarity
Provides clear process observation and monitoring.
Custom Manufacturing Service
We provide tailor-made solutions according to drawings or technical requirements.
- Custom diameter
- Custom thickness
- Special pressure design
- Edge polishing
- Optical finishing
- OEM / ODM support
- Custom packaging
TYPICAL APPLICATIONS
- Pressure Vessels
- Chemical Reactors
- Boilers & Steam Systems
- Pipeline Sight Glass Assemblies
- Pharmaceutical Equipment
- Food & Beverage Processing
- Industrial Observation Ports
FAQ
A: A stepped sight glass is a glass disc with a machined shoulder or recessed profile designed to fit securely into a corresponding housing or flange.
A: The stepped structure improves positioning accuracy, sealing performance, installation stability, and load distribution.
A: We manufacture stepped sight glass discs in borosilicate glass, soda lime glass, aluminosilicate glass, fused quartz, sapphire, and other custom materials.
A: Yes. Custom dimensions, step profiles, tolerances, holes, and edge finishes can be produced according to customer drawings.
A: Fused quartz and sapphire are recommended for extreme temperature environments, while borosilicate glass is suitable for most industrial applications.
Need Custom Stepped Sight Glass Disc for Industrial Viewing Applications Solutuions?
Send us your drawings or technical requirements for fast quotation and engineering support.