Lumiglas Spray Device

product photo: Lumiglas Spray Device

• Combination with other features:
Can be combined simultaneously with Lumiglas luminaire and wiper. Care must, however, be taken that max. permissible operating temperature and resistance to temperature cycling for the relevant glass disc are considered.

Use to jet spray water, inert gas or other fluid to maintain glass visibility

• Application:
For intermittent or continuous automatic cleaning of underside of sight port glass disc. Suitable for pressure and vacuum vessels subject to pressure test certification for all standard ratings and use in explosion hazardous as well as non hazardous areas.

No interference with viewing area

• Materials:
All metallic contact parts are of stainless steel quality 1.4571.
Seals: PTFE


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 Oval – Liquid Level Indicator

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

Materials: stainless, carbon steels and specials
Nominal pressure: PN 2,5 / PN 6 / PN 10 and PN 25

Lumiglas Oblong Oval Sight Glass Fitting is suitable for welding into or onto vessel walls, this sight glass fitting comes complete with an oblong oval glass plate sealed by gaskets inserted on either side of it and bolted firmly in place.

Ideal for viewing the insides of pipes, vessels, containers, reactors, silos, etc., and used primarily as a liquid level indicator for monitoring e. g. filling levels.

Operating conditions:
– Pressure 2.5/6/10/25 bar
– Vacuum
– Prior to using the fitting, the cut-out reinforcement together with the relevant material of the vessel should be checked in accordance with AD-Merkblatt.

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

Testing and certification can be provided to DIN EN 10204 3.1/3.2
as required by the customer (at extra charge).

Components and alternative materials:
(as per drawing within data sheet below):
Item Component Material options
1. Base frame Stainless steel 1.4404 or other grades
on request (Steel S235JR+N (RST 37-2))
2. Gaskets KLINGERSil C-4400; Neoprene;
PTFE or others
3. Sight glass plate – Soda-lime glass: thermally
prestressed to DIN 8903,
max. operating temperature: 100°C
– Borosilicate glass: thermally
prestressed to DIN 7081,
max. operating temperature: 243°C
4 Cover frame Stainless steel 1.4404 or other grades
on request (Steel S235JR+N (RST 37-2))
5 Fastening bolts Steel 8.8 or stainless steel A4

Externally mounted liquid level indicator:
Lumiglas oblong oval sight glass fittings are also available with a closed base frame for use as an external liquid level indicator. In this case, the indicator is fed via pipes that run through holes in the base frame plate. The base frame is provided with the relevant drilled or tapped holes for this purpose.

product photo: Lumiglas Sight Glass Fitting Oval