176-Type Sintered Sight Glass
Lumistar 176 sintered borosilicate sight glass — a safe, durable replacement for conventional glass. Excellent impact, pressure and temperature resistance; suitable for DIN flanges; -60°C to +300°C
Fused Sight Glass
Porous, sintered-metal and sintered-ceramic sight windows designed for combined observation and particulate control in process systems. Ideal for chemical reactors, filtration housings, catalyst beds, vacuum chambers (medium–high vacuum when properly prepared), vacuum furnaces, and lab-scale process equipment.
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81-Type Sintered Sight Glass for DIN 11851 Fittings — Hygienic Borosilicate Fused-to-Metal Design
Lumiglas® 81-Type sintered sight glass for DIN 11851 hygienic fittings.
Fused-to-metal borosilicate, CIP/SIP rated to 300°C, DN32–DN125, 40 bar.
METAGLAS® Type 81 compatible. EN 10204-3.1. Request quote → -
82-Type Sintered Sight Glass — Sight Port
82-Type Sintered Sight Glass — a sintered-filter sight glass assembly combining a porous sintered metal/316L filter plate with a protective sight window to maintain crystal-clear visibility in particle-laden processes. Ideal for filtration lines, crystallisers and slurry pipelines where standard viewports foul quickly.
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LUMIGLAS® Type 73 Fused Sight Glass — Metal-Fused Borosilicate Disc to DIN 7079
73-Type sintered sight glass — sintered borosilicate sight window for splash-free visual inspection. Custom sizes, flanged housings & COA available.
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LUMIGLAS® Type 76 Fused Sight Glass — Metal-Fused Borosilicate Disc for Welding Neck Flanges (DIN 28121)
LUMIGLAS® Type 76 is a metal-fused borosilicate sight glass disc manufactured to DIN 7079 for welding neck flange assemblies to DIN 28121 — also compatible with welding neck flanges with flat or raised faces. Rated −60°C to +300°C, 16 and 40 bar standard pressure classes. Ring materials: S355J2+N, Duplex SS (1.4462), Hastelloy C-22, C-276 and C-4. Direct drop-in replacement for conventional glass discs — no housing modification required.
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Lumistar Aseptic Threaded Connection Type Sight Glasses LMV-S
The LMV-S provides a hygienic, threaded sighting solution for bioreactors, lab vessels, mixers and closed tanks. Featuring a sintered borosilicate window for added mechanical stability, weldable brackets for secure mounting, and multiple gasket/O-ring options to match temperature, chemical and CIP requirements. Custom porosity and diameters available on request.
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Lumistar sintered with scraper sight glasses 73.SW
The Lumistar 73.SW is a sintered borosilicate sight glass with an integrated central wiper, engineered for continuous cleaning and maximum viewing in processes prone to fouling. Available in multiple ring alloys with certificates and datasheets on request.
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Lumistar threaded sight glasses MV
Lumistar MV threaded sight glasses — weldable, hygienic screwed sightglass assemblies compatible with DIN-11851; available in soda-lime or borosilicate glass with multiple gasket and alloy options.
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Sintered Welded Lamp Viewing Glass
Lumistar sintered welded lamp viewing glass — compact, hygienic glass-to-metal unit for sterile process observation. Designed for NA-Connect and DIN fittings, ideal for food, beverage, and pharmaceutical applications.
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Sintering Observation Window Glass
The Lumistar Sintering Observation Window Glass is a flush, fused-to-metal borosilicate sight window engineered for flat-face flanges and weldneck installations (e.g. DIN 28117). It delivers maximum viewing area, high mechanical strength and a hygienic metal border for easy CIP/sterile cleaning. Available in multiple ring alloys with material certificates and batch test reports on request.