Multi-blade rectangular damper PW/PW-SI
Material:
- aluminum (profiles + louver);
- PA material (driving cogs);
- EPDM rubber (gaskets).
Product characteristics:
- damper mechanism is completely covered inside the side profile;
- due to transportation limits, one of the dimensions (A or B) cannot exceed 2000 mm;
- operating temperature range: from -20 to +80°C.
Design:
- manually operated or actuator powered version;
- A ≥1300 mm - produced as divided damper;
- B ≥ 1600 mm - equipped with additional handle.
Types:
- PW - multi-leaf damper with manual mechanism;
- PW-SI - actuator powered multi-leaf damper (12x12 mm axle).
A [mm] | B [mm] |
200 - 2000 | 200 - 2000 |
W przypadku zamówień pełnych wymiarów B, np. 200, 300, 400, 500, 600, etc. rzeczywisty wymiar będzie powiększony o 12 mm.

Pressure loss diagram:
* Dla przepustnicy o wymiarach 1000×1000 mm wartość spadku ciśnienia dla prędkości 8 and 10 m/s została otrzymana na zasadzie ekstrapolacji.
Catalogs and brochures:
Product Catalogue | Warsaw
update: 2025-04-25 | type: PDF | size: 25,96 MB | downloads: 1780 Product Overview | Warsaw
update: 2024-09-24 | type: PDF | size: 4,59 MB | downloads: 706
update: 2025-04-25 | type: PDF | size: 25,96 MB | downloads: 1780 Product Overview | Warsaw
update: 2024-09-24 | type: PDF | size: 4,59 MB | downloads: 706
Documents:
Terms of Deliveries of the Products of Lindab Sp. z o.o. for Foreign Deliveries
update: 2024-07-11 | type: PDF | size: 207 kB | downloads: 229 General Guarantee Terms and Conditions
update: 2024-08-20 | type: PDF | size: 179 kB | downloads: 238 Claim notification
update: 2024-09-17 | type: PDF | size: 106 kB | downloads: 237 General Terms and Conditions of Sale for Foreign Deliveries
update: 2024-12-15 | type: PDF | size: 398 kB | downloads: 114
update: 2024-07-11 | type: PDF | size: 207 kB | downloads: 229 General Guarantee Terms and Conditions
update: 2024-08-20 | type: PDF | size: 179 kB | downloads: 238 Claim notification
update: 2024-09-17 | type: PDF | size: 106 kB | downloads: 237 General Terms and Conditions of Sale for Foreign Deliveries
update: 2024-12-15 | type: PDF | size: 398 kB | downloads: 114
Contacts
For general inquiries - please e-mail us at: sales@directvent.eu
You can also contact our sales people in Poland directly.
