Description
The FFA-DDS-4 Heavy Duty Automatic Door Drop Seal is a concealed automatic door bottom seal designed to improve the acoustic, medium temperature smoke and fire performance of timber and metal doors. Its heavy-duty aluminium construction provides exceptional strength and long-term durability, making it ideal for high-traffic commercial and industrial applications.
The seal is fully concealed within a machined groove at the bottom of the door. As the door closes, an adjustable actuator button contacts the door jamb and activates the internal spring-loaded mechanism, lowering the silicone sealing gasket evenly onto the floor. When the door opens, the gasket automatically retracts, preventing floor contact and reducing wear while ensuring smooth and reliable operation.
The FFA-DDS-4 features built-in level adjustment to provide effective sealing on uneven floor surfaces. It is suitable for both timber and metal doors and is approved by Global-Mark, providing a reliable solution for fire-rated and acoustic door systems.
Key Features
- Heavy-duty concealed automatic door drop seal
- Improves acoustic, medium temperature smoke and fire performance
- Heavy-duty aluminium alloy body
- Durable silicone rubber sealing gasket
- Automatic spring-loaded mechanism
- Adjustable actuator button
- Fully concealed installation
- Built-in level adjustment for uneven floors
- Reduces gasket wear by retracting when the door opens
- Global-Mark approved
- Suitable for timber and metal single and double hinged doors
- Standard length 920 mm, can be cut back to 820 mm
Certified and Approved, AS 1530.4-2014
