Circular sight glass fitting type 390 PN 16/320
with welding ends according to DIN EN 1092-1 type 11
Tank sight glass PN 16 | PN 40 | PN 63 | PN 100 | PN 160 | PN 250 | PN 320
- 15
- 20
- 25
- 32
- 40
- 50
- 65
- 80
- 100
- 125
- 150
- 200
- 250
- 300
- 350
- 16
- 40
- 63
- 100
- 160
- 250
- 320
- 80°C
- 130°C
- 150°C
- 175°C
- 180°C
- 200°C
- 280°C
- 300°C
- 320°C
- 400°C
- Wiper SGW with PTFE or silicone wiper blade
- LED lamp for Ex and non-Ex areas
- FEP or Halar® coating
- Mica protection disc
- Custom made designs
Quick overview
DN 15 - 350
Product information
Our round tank sight glass type 390 is welded onto a pipe socket or into a container wall to allow for observation or illumination of the inside of the container. Between two high-quality stainless steel flanges and proven quality seals, a sight glass made of chemically highly resistant borosilicate glass DIN7080 is clamped.
Our round tank sight glasses type 390 are made of high-quality stainless steel 1.4571 (316Ti), which our customers have appreciated for years. The glass material used is the industry-proven borosilicate glass according to DIN 7080 (or according to customer requirements).
The sealing of the fitting is done with flat seals tailored to your needs from an extensive range of materials. This offers not only the common fiber seals but also more sophisticated materials, such as PTFE (Teflon®), NBR, novaphit® MST-XP, KlingerSil® C4400, and many other brand seals.
If the maximum operating temperature of borosilicate glass DIN 7080 does not meet your requirements, or if the process conditions pose a problem for the highly resistant borosilicate glass, a mica protective disk specially tailored for the fitting provides additional protection against temperature and steam. FEP or Halar® coatings additionally protect the borosilicate glass from aggressive chemicals or alkalis.
As with other sight glass fittings, type 390 can be equipped with a wiper type SGW and lights upon request.
- Screws
- Cover flange
- Glass cushion
- Sight glass
- Gasket
- Base flange
- Nuts
