Lumiglas Sight Glass Wiper SW II

product photo: Lumiglas Sight Glass Wiper SW II

Effective assembly for wiping clean glasses in sight glass fittings DIN 28120 – DN 100 to DN 200

For manually activated cleaning, when required, of inside face of glass in sight ports. Particularly suitable for pressure and vacuum, vessels requiring test certification both in explosion hazardous as well as non hazardous operating areas.

The glass discs fitted into the assemblies correspond to DIN 7080 or DIN 8902 standards.

Suitable for circular sight glass assemblies nominal size DN 100DN 200.

Pressure rating same as whole fitting up to 16 bar
All contact parts stainless steel

Manual wiper suited for DIN 28120 style sight glass. Requires threaded bore through sight glass assembly and weld pad.

  • Temperature: up to 220 C. (depending, however,  on type of glass disc used)
  • 316 stainless steel wetted metal parts 
  • Vacuum tight and up to 230 psig
  • All stainless construction with Teflon or Silicone wiper blade
  • Sizes: DN Sizes 100 to 200 DIN28120 sight glasses.

Possible combinations:

Simultaneous fittings of Lumistar luminaire, flame proof or standard design, is possible with the wiper SW ll BW, as is the fitting of a spray device



Lumiglas Sight Glass Fitting Rectangular – Liquid Level Indicator

For welding into or onto vessel wall
Complete with fully gasketed tongue-shaped glass plate and bolting

Sizes: 250 to 1000 mm long, 70 mm wide, viewing slot 18 mm 

For viewing the internals of pipelines, containers, pressure vessels, reactors, silos etc. used principally as a liquid level indicator

Materials: stainless, carbon steels and specials
Also available with closed base frame for use as external liquid level indicator

The base flange of the sight glass unit is welded into or onto the vessel wall; the glass plate with gasket either side is firmly held in place by bolted on cover flange.

Welded into a vessel or a pipeline, these rugged sight glass fittings provide  either flow or level indication. They are available in carbon steel, stainless steel and special alloys. 

Operating pressure:
Pressure 16 bar
NB: Before putting the fitting into operation, the strength of the cutout reinforcement in combination with the vessel wall should be checked in accordance with TÜV leaflet.

Operating temperature:
100°C when using soda-lime glass, DIN 8903
243°C when using borosilicate glass, DIN 7081
These temperatures refer to unprotected glass (i. e. without mica protective sheet).

Certification/acceptance test:
If required by customer, and against additional charge, testing and certification can be provided to DIN EN 10204 3.1/3.2

Lumiglas sight glass fitting rectangular are also available with closed base  frame (see sketch in data sheet below) for use as external liquid level indicator. In that case the unit is fed via pipes through holes in the base frame plate. The unit comes with such holes suitable drilled or tapped.

product photo: Lumiglas Sight Glass Fitting Rectangular