DD-420S Dropdown Seal
Price Range : Rs. 1500 – Rs. 2500
Mann McGowan DD-420S, is a robust threshold seal providing acoustic, cold smoke and environmental sealing when used in conjunction with suitable doors.
DD-420S has achieved a 30 minute fire rating when tested to BS 476 pt. 22 1987.
Acoustic values of upto 34dB can be achieved depending on door type selected.
- High quality aluminium threshold seal
- Seals gaps up to 13mm
- Simple to fit with slide and click mechanism
- Easy to adjust using slot head screwdriver
- 30 minute fire rating
- Excellent noise-reducing performance up to 34dB
- Available in 3 standard lengths 630, 930 and 1130mm
- Optional end plates and cover plates
Full fixing instructions supplied with the product.
Please contact our Technical Team if you require additional advice.
DD-420S has been assessed to BS 476 Part 22 for use on FD30 Door sets.
DD-420S has been successfully tested to BS EN 1634-3 for cold smoke sealing (air leakage).
Cycling test: 200,000 opening and closing cycles.
Acoustic performance test
Acoustic tests have been conducted in accordance with the standards listed below:
34dB can be achieved.