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Round Sight Glass Assembly for Industrial Process Observation
Complete round sight glass assemblies designed for reliable visual inspection of liquids, gases, and processes in industrial equipment. Supplied as a complete set including sight glass, gaskets, retaining components, and mounting hardware. Available in borosilicate, soda lime, aluminosilicate, fused quartz, sapphire, and custom materials.
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Technical data
Product Overview
Complete Round Sight Glass Assembly Manufacturer
The Round Sight Glass Assembly is a complete viewing solution designed for process observation in pressure vessels, tanks, pipelines, reactors, boilers, and industrial equipment.
Each assembly is supplied as a complete set consisting of the sight glass, sealing gaskets, retaining rings, protective components, and mounting hardware to ensure safe installation and reliable long-term operation.
I-LUMISTAR manufactures standard and custom circular sight glass assemblies according to customer drawings, DIN standards, pressure requirements, and OEM specifications. Various glass materials are available to meet different temperature, pressure, chemical resistance, and optical performance requirements.
Our sight glass assemblies are widely used in chemical processing, pharmaceutical manufacturing, food production, power generation, water treatment, petrochemical plants, and vacuum systems.
Complete Round Sight Glass Assembly — Technical Data Summary
| Parameter | Value |
|---|---|
| Assembly Type | Round Sight Glass Assembly |
| Viewing Glass Material | Aluminosilicate Glass |
| Protective Shield | Ruby Mica |
| Sealing Materials | Graphite, Non-Asbestos, Aluminum |
| Metal Components | SS304 Stainless Steel |
| Glass Diameter | 36.5 mm |
| Glass Thickness | 12.1 mm |
| Operating Service | Steam Boiler, Power Plant, Pressure Vessel |
| OEM Customization | Available |
Suggested Product Image Caption
Components include aluminosilicate sight glass, ruby mica shield, spiral wound gasket, graphite gasket, stainless steel retaining ring, non-asbestos packing strip, and aluminum sealing gasket.
Round Sight Glass Assembly Components & Dimensions
| Item No | Component | Material | Dimensions |
|---|---|---|---|
| 1 | Spiral Wound Gasket | Graphite + SS304 | OD 51.4 × ID 22 mm × T 3.5 mm |
| 2 | Metal Sheet Ring | SS304 Stainless Steel | OD 51.4 × ID 25 mm × T 0.1 mm |
| 3 | Graphite Gasket | Compressed Graphite | OD 51.0 mm × ID 25.5 mm × T 0.5 mm |
| 4 | Mica Shield | Ruby Mica | Ø51.5 mm × T 0.4 mm |
| 5 | Sight Glass (Port Glass) | Aluminosilicate Glass | Ø36.5 × T 12.1 mm |
| 6 | Packing Strip | Non-Asbestos Material | L112 mm × W11.3 mm × T 0.4 mm |
| 7 | Aluminum Gasket | Aluminum Alloy | OD 31.9mm × ID 25.3mm × T 0.5 mm |
Assembly Components
| Component Group | Material |
|---|---|
| Sight Glass | Aluminosilicate Glass |
| Protective Layer | Ruby Mica |
| Primary Seal | Spiral Wound Gasket (Graphite + SS304) |
| Secondary Seal | Graphite Gasket |
| Spacer / Retainer | SS304 Stainless Steel |
| Packing Material | Non-Asbestos Packing Strip |
| Auxiliary Seal | Aluminum Alloy Gasket |
KEY FEATURES
Complete Ready-to-Install Assembly
Supplied with all required sealing and mounting components
Excellent Process Visibility
Provides clear observation of liquid level, flow conditions, and process operations
Multiple Material Options
Glass and sealing materials can be selected according to operating conditions
High Temperature Capability
Available for standard industrial service through high-temperature applications
Pressure Resistant Design
Suitable for pressure vessels, reactors, and process systems
Custom Manufacturing
Custom dimensions, flange configurations, glass materials, and assembly designs available
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: Components include aluminosilicate sight glass, ruby mica shield, spiral wound gasket, graphite gasket, stainless steel retaining ring, non-asbestos packing strip, and aluminum sealing gasket.
A: Yes. We manufacture complete sight glass assemblies according to customer drawings and specifications.
A: Graphite, PTFE, mica, non-asbestos, spiral wound, and custom sealing materials are available.
A: Yes. Suitable glass, gasket, and metal materials can be selected according to the process media.
A: Yes. We can provide complete maintenance and replacement kits for existing sight glass assemblies.
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