The windpipe check valve installed in. When air blower runs, the valve open and airflow can pass smoothly; when air blower stops, the valve close in order to prevent airflow from reversion.
Fire damper :
1) Material: galvanized steel plate
2) Automatic shutoff when pipeline temperature reaches 70
fire damper:
1) Material: galvanized steel plate
2) Automatic shutoff when pipeline temperature reaches 70deg
3)open manually
| Delivery Time: | 20DAYS AFTER LC OR TT DATE |
| Package: | AS TO THE CUSTOMER'S REQUIREMENTS |
| Supply Ability: | 20000 Piece/Pieces per Month |
| Minimum Order Quantity: | 100 Piece/Pieces |
| Payment Terms: | L/C,T/T |
| Port: | QINGDAO OR YANTAI |
| FUNCTION: | FIRE PROOF |
| SHAPE: | SQUARE |
| MATERIAL: | galvanized steel plate |
| Model Number: | FYFH-2F |
| Brand Name: | RH |
| Place of Origin: | Guangdong China (Mainland) |