Screwed Sight Glass Type 327- DIN 11851 | ACI Industriearmaturen GmbH

Threaded sight glass fitting type 327 - similar to DIN 11851 / EN 10357

Threaded sight glass type 327 for areas with high hygiene requirements

The ACI threaded sight glass based on EN 10357 (old DIN 11851) is specially designed for use in the food industry, medicine and other areas with high hygiene requirements.

The base flange of the sight glass is welded to an open pipe socket according to DIN 11850 or EN 10357 and thus forms a resilient and tight connection with the rest of the system. On the media side, the borosilicate glass disc, which complies with the DIN 7080 standard, is sealed by a gasket ring made of NBR, FKM (Viton) or PTFE, which is specially shaped for milk pipe screw connections. A groove nut provides the necessary support.

Exploded_view_type_327_with_labelling_of_the_individual_parts

If the process conditions pose a problem even for the highly resistant borosilicate glass, an FEP or mica protective screen specially adapted for the fitting offers additional protection against steam and aggressive chemicals, such as alkalis up to a pH value of 14.

Like other of our sightglass fittings, the type 327 can be equipped with wiper type SWI or lights on request.

Individual parts can be replaced at any time with very little effort and without special tools. Our sales team will be happy to advise you should any difficulties arise.

Technical details

Material:

  • Threaded socket: 1.4301/7, 1.4404
  • Groove nut: 1.4301/7, 1.4404
  • Other materials on request

Shape:

  • similar to EN 10357 (DIN 11851)

Temperature:

  • up to 200 °C with borosilicate glass according to DIN 7080
  • up to 150 °C with soda-lime glass according to DIN 8902

Sight glass:

Nominal size:

  • DN 25 up to DN 150

Options:

  • Wiper SWI with PTFE or silicone wiper blade
  • LED lights for EX- and Non-EX-areas
  • FEP protective screen (for higher pH-values)
  • special desgins are possible 

Gaskets:

  • PTFE, FKM, NBR, Silikon, EPDM
  • other materials in request

Nominal pressure:

  • PN 10
Section_view_type_327
DN 25 32 40 50 65 80 100 125 150
D1 [mm] 26 32 38 50 66 81 100 125 150
D2 [mm] 29 35 41 53 70 85 104 129 154
D3 [mm] 63 70 78 92 112 127 148 178 210
[mm] 37 40 41 43 48 54 64 58 60
Weight[kg] 0,31 0,4 0,5 0,7 1,1 1,61 2,27 3,1 5,3


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Screwed Sight Glass Type 327- DIN 11851
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