Circular sight glass fitting type 320 PN 10/16
For welding in or on according to DIN 28120
Execution according to DIN 28120 for operating pressures up to 16 barg
- 25
- 40
- 50
- 80
- 100
- 125
- 150
- 200
- 250
- 300
- 10
- 16
- 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 light for Ex and non-Ex areas
- Spraying device SVI
- FEP or Halar® coating
- Mica protection
- Special constructions
Quick overview
DN 25 - 300
Cross-section
drawing
| DN | 25 | 40 | 50 | 80 | 100 | 125 | 150 | 200 | 250² | 300² |
|---|---|---|---|---|---|---|---|---|---|---|
| Da [mm] | 115 | 150 | 165 | 200 | 220 | 250 | 285 | 340 | 395 | 445 |
| Di [mm] | 48 | 65 | 80 | 100 | 125 | 150 | 175 | 225 | 280 | 325 |
| h1 [mm] | 16 | 16 | 16 | 20 | 22 | 25 | 30 | 35 | 40 | 45 |
| h2 [mm] | 25 | 30 | 30 | 30 | 30 | 30 | 36 | 36 | 40 | 45 |
| Glass-Ø [mm] | 63 | 80 | 100 | 125 | 150 | 175 | 200 | 250 | 300 | 355 |
| s (PN10) [mm] | 10 | 10 | 12 | 15 | 20 | 20 | 25 | 30 | 45 | 45 |
| s (PN16) [mm] | 10 | 12 | 15 | 20 | 25 | 25 | 30 | - | - | - |
| Weight (PN 10) [kg] | - | 5,4 | 5,9 | 9,6 | 11,1 | 14,3 | 21,9 | 30,7 | 44,7 | 59,2 |
| Weight (PN 16) [kg] | 2,8 | 5,4 | 6,0 | 9,7 | 11,3 | 14,6 | 22,4 | - | - | - |
2) Similar to DIN 28120
Product information
Our round sight glasses type 320 are welded on or in a container wall to allow for observation or illumination of the inside of the container. A sight glass made of chemically highly resistant borosilicate glass DIN7080 is clamped between two high-quality stainless steel flanges and proven quality seals.
Beyond the definitions of DIN 28120, we also offer type 320 in special sizes of DN 250 and DN 300. These sizes, not specified in the standard, have also been constructed in accordance with DIN 28120.
Our sight glasses type 320 are made from high-quality stainless steel 1.4571 (316Ti), which our customers have appreciated for years. The glass material used is the tried-and-tested borosilicate glass according to DIN 7080 (or according to customer specifications).
The sealing of the fitting is done with flat seals tailored to your needs from a comprehensive range of materials. In addition to the common fiber seals, this also offers more demanding 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 even for the highly resistant borosilicate glass, a mica protection disk specially adapted for the fitting offers additional protection against temperature and steam. FEP or Halar® coatings additionally protect the borosilicate glass from aggressive chemicals or alkalis.
Like other sight glass fittings, type 320 can be equipped upon request with sight glass wiper type SGW and SWII, spray devices SVI, or lights.
- Nuts
- Stud bolts
- Cover flange
- Glass cushion
- Sight glass
- Gasket
- Base flange
