DIN Bull's Eye Sight Indicators (PN 10)
Our Bull‘s Eye Sight Indicators – manufactured with high-quality borosilicate glasses – offer you the right view at any time.
Materials:
- carbon steel
- stainless steel
Lining materials:
- up to nominal pipe size DN 100: PFA (virgin or conductive)
- from nominal pipe size DN 125: PTFE (virgin or conductive)
- up to nominal pipe size DN 300: PP
Flange according to EN 1092-1:
- fix-fix
- fix-loose
- loose-loose
Other pressure levels:
- PN 16
- PN 25
- PN 40
Special features:
- earthing stud/lug
- vent hole extension
- flange stopper
Optional extras:
- final painting
- non-destructive testing
DN
| L (mm) | Form (mm) | d1 (mm) | d4 (mm) | K (mm) | smin (mm) | a1 (mm) | a2 (mm) |
No. of bolts x thread | Weights (ca. kg/ pc.) |
25 | 110 | A | 33.7 | 68 | 85 | 4.0 | 22.0 | 34.0 | 4 x M12 | 8.5 |
32 | 130 | A | 42.4 | 78 | 100 | 4.0 | 22.0 | 36.0 | 4 x M16 | 13.7 |
40 | 150 | A | 48.3 | 88 | 110 | 4.0 | 22.0 | 36.0 | 4 x M16 | 15.6 |
50 | 120 | A | 60.3 | 102 | 125 | 4.0 | 22.0 | 40.0 | 4 x M16 | 19.8 |
65 | 140 | A | 76.1 | 122 | 145 | 4.0 | 22.0 | 40.0 | 8 x M16 | 23.8 |
80 | 165 | A | 88.9 | 138 | 160 | 4.0 | 24.0 | 40.0 | 8 x M16 | 28.0 |
100 | 205 | A | 114.3 | 158 | 180 | 4.0 | 24.0 | 44.0 | 8 x M16 | 34.4 |
125 | 245 | B | 139.7 | 188 | 210 | 6.0 | 28.0 | 46.0 | 8 x M16 | 69.7 |
150 | 285 | B | 168.3 | 212 | 240 | 6.0 | 28.0 | 50.0 | 8 x M20 | 92.9 |
200 | 365 | B | 219.1 | 268 | 295 | 6.0 | 30.0 | 50.0 | 8 x M20 | 129.5 |
250 | 450 | B | 273.0 | 320 | 350 | 7.5 | 33.5 | 55.5 | 12 x M20 | 172.2 |
300 | 525 | B | 323.9 | 370 | 400 | 7.5 | 33.5 | 55.5 | 12 x M20 | 208.4 |
350 | 600 | B | 355.6 | 430 | 460 | 8.0 | 34.0 | 60.0 | 16 x M20 | 302.3 |
400 | 680 | B | 406.4 | 482 | 515 | 7.0 | 33.0 | 63.0 | 16 x M24 | 406.9 |
Different nominal pipe sizes,
total lengths and other
construction types on request.
L = Total length
d1 = Outer diameter of the
steel pipe
d4 = Raised face diameter
K = Bolt circle diameter
smin = Minimum flare thickness
a1 = Mindestlänge bei
Minimum length with fixed flange (Type 11) and smin
a2 = Minimum length with loose flange (Types 04/34) and smin
Technical data valid for the
pressure level PN 10.
a1 and a2 depend on construction type and lining thickness.
| DN | Lining thickness | Possible vacuum | |||
| standard | thick-walled | 23°C | 150°C | 200°C | |
| 25 |  |  | | ||
| | | |||
| 40 | | | | ||
| | | |||
| 50 | | | | ||
| | | |||
| 80 | | | | ||
| | | |||
| 100 | | | | ||
| | | |||
| 150 | | | | ||
| | | |||
| 200 | | | | ||
| | | |||
| 250 | | | | ||
| | | |||
| 300 | | | | ||
| | | |||
| = | full vacuum |
| = | limited vacuum |
 | = | no vacuum |
| Please refer to the next higher nominal pipe size if your nominal pipe size is not listed. | ||