Lumistar Luminaire ME, stainless steel

Product Picture: Lumistar Luminaire ME, stainless steel

Also available in LED technology

A stainless steel version of the ‘Lumistar’ adapted for use with Lumiglas Screwed Sight Glass MV

Nominal dia: DN 65 to DN 125
Operating voltage: 24V AC/DC
Power, depending on size: 20W or 50W

Luminaire is fastened to branch nozzle by slotted cover nut
Standard product with momentary push button


Lumistar Luminaire USL 08-Ex; T4A, T3B, aluminium

Luminaires (Ex)

Product Picture: Lumistar Luminaire USL 08-Ex; T4A, T3B, aluminium

Suitable for Explosion hazardous areas


Lumistar Luminaire USL 08-Ex, UL-listed + T3B, T4A


Safe high-intensity illumination for sight glasses, ports, or general applications in hazardous (classified) locations.

For illuminating the interior of tanks, hoppers, silos, agitators and other, usually closed, vessels and reactors as well as visual flow indicators in potentially explosive environments with UL requirements. Suitable for use in food processing industries.

  • Protection: dust-proof and splash-proof, IP 65 acc. to EN 60 529/ DIN VDE 0470, Part 1
  • Ignition protection, explosion group:
    UL 844 listed for Class I Div. 1 and 2, Groups C and D
    UL 1571 for “wet conditions

Temperature Class: to T4A. Ambient temperature: up to 40°C
Ignition protection: Class 1, Div.1 & 2, Explosion Group: C & D

Suits circular sight glass fittings to DIN 28120/28121 or similar from size DN  50 and screwed sight glass fittings DIN 11851 from DN 100/125

Operating Voltage: 120 V
Power rating: up to 100 W

These sturdy, compact lights are now available in 35 W, 50 W or 100 W  versions.

Secured to sight glass flange by twin brackets fastened

(Ex) Div. I, Div. II



Lumistar Ex Light Guide Luminaire Lumiflex Type USL 08 ALF-Ex, aluminium

Luminaires (Ex)

Product Picture: Lumistar Ex Light Guide Luminaire Lumiflex Type USL 08 ALF-Ex, aluminium


For use in Explosion hazardous areas
Temperature class: T4 (60°C) & T5 (40°C)
Ignition protection: Class 1, Div.1
Explosion Group: C & D

For mounting on sight glass fittings… or for localized illumination of process operations in reactors, vessels and pipelines and also where there is limited space, primarily in potentially hazardous Ex zones.

For the illumination of process operations and/or the internals of vessels and plant in in potentially explosive environments, where the space available is limited.

The unit is made up of a general-purpose sight glass luminaire that has been modified to provide a fibre optic system which is particularly suitable for use wherever processes in Class I, Divisions 1&2, Groups C&D need to be  illuminated.

The unit can be installed for combined light and sight purposes as well as with VISULEX Ex camera technology.

This Lumistar luminaire has been specifically developed for light guide applications and is characterised by its:

Extremely high light output at only 39 W
Low energy consumption
Servicing intervals: filament lamp life greater than 6,000 hours

The light source can also be mounted at a distance from a vibrating vessel to extend the bulb life.

Protection: Suitable for wet locations acc. to UL-1598 and CSA C22.2
No. 250.0-08, IP65/IP67 (similar to NEMA4+4x), Class I, Div 1 & 2, Groups C & D

For the localised illumination of process operations at machines and internals of reactors; Specially developed for Light guide duties Power supply see data sheet