CAD Series
| Type | ∅D(mm) | A(mm) | B(mm) |
| 100 | 100 | 180 | 80 |
| 125 | 125 | 180 | 80 |
| 160 | 160 | 250 | 150 |
| 180 | 180 | 250 | 150 |
| 200 | 200 | 250 | 150 |
| 250 | 250 | 250 | 150 |
| 315 | 315 | 250 | 150 |
| 355 | 355 | 250 | 150 |
| 400 | 400 | 250 | 150 |
| 450 | 450 | 250 | 150 |
| 500 | 500 | 250 | 150 |
| 315b | 315 | 300 | 200 |
| 355b | 355 | 300 | 200 |
| 400b | 400 | 300 | 200 |
| 450b | 450 | 300 | 200 |
| 500b | 500 | 300 | 200 |
| 400c | 400 | 400 | 300 |
| 450c | 450 | 400 | 300 |
| 500c | 500 | 400 | 300 |
| 560c | 560 | 400 | 300 |
| 630c | 630 | 400 | 300 |
| 710c | 710 | 400 | 300 |
| 800c | 800 | 400 | 300 |
Application For inspection and maintenance of circular ventilation ducts Galvanized steel Airtight sealing on the inner part of the sandwich door Specifications Conical spring design which enables the two piece door to perform as a single unit Template for cutting included Airtight until 2000 Pa in overpressure and 750 Pa in underpressure |
