Acoustic & Smoke Rated Drop Down Door Bottom Seals
DB SEAL - Rebate Fit
Door Bottom Acoustic Seal: Rw -37dB sound reduction
An automatic door bottom seal which is spring loaded to lift clear of the floor as soon as the door leaf is opened by a few millimetres.
Acoustically designed seal for rebated applications. Sound reduction of
Rw 37 decibels.
The seal is mounted into a 13mm x 28mm groove morticed into the bottom edge of the door, it is operated automatically by pressure against the door jamb on its adjusting screw and seals when the door closes and retracts automatically when the door is opened.
Can be fitted inside (lock side using bumper provided) or outside of the
door (non lock side).
Tested for durability 200,000 cycles completed without failure for fire rated smoke doors.
Suitable for all types of wooden doors. 14mm maximum drop, Graduated Scissor action (seal drops on hinge side before lock side).
Noise Reduction Index Rw 37dB
Min/Max Gap: 3mm - 13mm.
Seal Lengths:
330mm, 430mm, 530mm, 630mm, 730mm, 830mm, 930mm, 1030mm, 1130mm, 1230mm.
Maximum trimming length 100mm.
Anodised Satin clear finish
Seal easily removed to prevent damage during installation.
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DB SEAL - SURFACE MOUNTED
Surface Mounted version of the DB drop down seal (above)
Suitable for wooden or metal door assemblies.
Acoustically and smoke tested on proprietary fire doors
Aluminium body with self extinguishing PVC rubber coextruded seal and carrier.
Sound reduction of Rw 37 decibels
Suitable for new and retrofit
Screw fixing (screws suppied)
Tested for durability 200,000 cycles completed without failure
for fire rated smoke doors.
14mm maximum drop, Seal drops on hinge side before lock side.
Suitable for all types of swing doors.
Noise Reduction Index: Rw 37dB
Min/Max Gap: 3mm - 14mm.
Seal Lengths:
330mm, 430mm, 530mm, 630mm, 730mm, 830mm, 930mm, 1030mm, 1130mm, 1230mm.
Maximum trimming length 150mm.
Finish: Anodised Satin Clear.
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DB Plus Door Bottom Drop Down Seal
Door Bottom Acoustic Seal: Rw -51dB sound reduction
An automatic door bottom seal which is spring loaded to lift clear of the floor as soon as the door leaf is opened by a few millimetres.
An acoustically designed seal for rebated applications. mounted into a 15mm x 28mm groove that has been morticed into the bottom edge of the door.
It is operated automatically by pressure against the door jamb on its adjusting screw and seals when the door closes and retracts automatically when the door is opened.
Can be fitted inside (lock side using bumper provided) or outside of the door (non lock side).
Tested for durability 200,000 cycles completed without failure for fire
rated smoke doors.
14mm maximum drop, Graduated Scissor action (seal drops on hinge side
before lock side).
Noise Reduction Index Rw 51dB
Min/Max Gap: 3mm - 14mm.
Seal Lengths:
330mm, 430mm, 530mm, 630mm, 730mm, 830mm, 930mm, 1030mm, 1130mm, 1230mm.
Maximum trimming length 150mm.
Anodised Satin clear finish
Seal easily removed to prevent damage during
installation.
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DB PLUS Seal Extension
A unique solution to fitting rebated flush bolts in conjunction with drop down seals.
The DB SEAL Extension works as an extender with the Astro DB Seal Plus (Rw 51dB) drop down seal.
10mm maximum drop and the seal is manually lowered on the handle side.
Suitable for double leaf timber doors.
Acoustically and smoke tested on proprietary fire doors.
Noise Reduction Index Rw 35dB.
Also available are 150mm Stainless Steel Flush Bolts (AFASDBX/FBBOLT) with radiused ends designed to work with the DB Seal Extendsion.
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Dimensions and Schematic Diagram.
