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Circular sight glass fitting type 391 PN 16/40 - pipe assembly
SKU: MG-391
Type 391 sight glass fitting with pipe mounting for pipelines and curved tanks. PN 16/25/40, DN 100–350, and borosilicate glass to DIN 7080..
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Type 391 sight glass fitting with pipe mounting for pipelines and curved tanks. PN 16/25/40, DN 100–350, and borosilicate glass to DIN 7080..
Technical data
Drawing & dimensions
Circular sight glass fitting type 391 PN 16/40 - pipe assembly
| Dimension | DN 100 | DN 125 | DN 150 | DN 200 | DN 300 | DN 350 |
|---|---|---|---|---|---|---|
| Diameter [mm] (PN 16) | 220 | 250 | 285 | 340 | 460 | 520 |
| Weight [kg] (PN 16) | 10.5 | 14.5 | 18.6 | 28.2 | 55.7 | 78 |
| Diameter [mm] (PN 25/40) | 235 | 270 | 300 | 375 | - | - |
| Weight [kg] (PN 25/40) | 14.8 | 21.1 | 27.5 | 52.6 | - | - |
| Inner diameter [mm] | 107 | 132 | 160 | 207 | 310 | 340 |
| Length [mm] (Standard) | 70 | 70 | 70 | 70 | 70 | 70 |
| s [mm] | 3.6 | 4 | 4.5 | 6.3 | 7.1 | 8 |
| A [mm] | 114.3 | 139.7 | 168.3 | 219.1 | 232.9 | 355.6 |
* All dimensions in mm unless specified.
- If applicable smaller or larger, depending on size of D and L For PN 25/40 if applicable smaller or larger depending on size of D and L PS max. 10 barg PS max. 6 barg
Fitting Component Assembly Structure
- 1Screws
- 2Cover flange
- 3Glass cushion
- 4Sight glass
- 5Gasket
- 6Base flange with pipe attachment
- 7Nuts
Quick overview
Nominal sizes DN
100 · 125 · 150 · 200 · 300 · 350
Nominal pressure PN
16 · 25 · 40
Temperature
80°C · 130°C · 150°C · 175°C · 180°C · 200°C · 280°C · 300°C · 320°C · 400°C