Celebrating 27 Years 1999-2026
Screwed Sight Glass Fittings for Process Vision Solutions
Lumiglas Screwed Sight Glass Fittings
Tempered sight glasses for a variety of applications that require visual inspection without disrupting the process.
Lumiglas Screwed Sight Glass Fitting MV
Screwed sight glass fitting similar to DIN 11851, with circular see‑through glass and threaded nozzles with weld necks.
Key Specifications:
- Pressure rating: 6 bar (higher ratings available on request)
- Vacuum rated
- Temperature: up to 280°C
- Compatible with Lumiglas luminaires
- Wiper Type SW I fits DN 50 and larger
Key Applications:
- Bioreactors and laboratory mixers
- Filters, separators, and process vessels
- Pipelines and closed containers
- Pharmaceutical, food, and beverage processing
Lumiglas Screwed Sight Glass Fitting MV with Wiper and ESL 51LED Luminaire
Manual wiper system for cleaning the inside face of sight glass discs and luminaire for viewing.
Key Specifications:
- Pressure rating: 6 bar
- Vacuum rated
- Temperature: up to 280°C
- Compatible with Lumiglas luminaires
- Wiper Type SW I fits DN 50+
- Luminaire + wiper combination fits DN 125
Key Applications:
- Bioreactors and laboratory mixers
- Filters, separators, and process vessels
- Pipelines and closed containers
- Pharmaceutical, food, and beverage processing
Lumiglas MV with Lumistar Luminaire ME-LED
Combined sight and light port with integrated Lumistar luminaire, available in stainless steel.
Key Specifications:
- Screwed light sight glass units similar to DIN 11851
- Integrated Lumistar luminaire
- Stainless steel or aluminium
- Sizes DN 65 to DN 125
- IP 65 dust and waterjet proof
- Pressure rating: 6 bar
- Vacuum rated
- Temperature: fitting up to 220°C
Key Applications:
- Bio‑reactors and laboratory mixing vessels
- Filters, tanks, agitators, silos, and separators
- Pipelines and closed process vessels
- Pharmaceutical, food, and beverage processing
Lumiglas MV with Lumistar Luminaire ESL 53LED
Compact LED sight glass luminaire for illuminating vessels, tanks, reactors, and closed process equipment.
Key Specifications:
- 7 W LED luminaire, 24 V AC/DC
- Ambient temperature: 50°C (70°C intermittent)
- Colour temperature: 5700 K, 500 lm
- Beam angle: 18° or 30°
- IP 65 dust and waterjet tight
- Compatible with DIN 28120 / 28121 / 11851 fittings
Key Applications:
- Illumination of vessels, tanks, agitators, silos, and reactors
- Ideal for chemical, pharmaceutical, biogas, and food industries
- Suitable for non‑explosive environments



