Single Blade Fire DamperCircular single blade externally resettable fire dampers for prevention of fire spreading in ventilation ductwork with a fusible thermal link that triggers at 72 degrees C. The damper has a mounting plate so it can be fitted to surfaces and act as a closing gate in between walls in buildings. Mainly manufactured from hot galvanized steel sheet.Download Specification SheetSKU: Alph33Delivery date: 2-3 days Ducting Size *Please select100mm 125mm 150mm 200mm 250mm 300mm 315mm £0.00 Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friend