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Acoustic & Smoke Rated Drop Down Door Bottom Seals

DB SEAL - Rebate Fit

Door Bottom Acoustic Seal: Rw -42dB* 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.

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.

Symbol Guide

 

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 up to Rw 42dB*

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

 

Door bottom seal - surface mount type.

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 up to Rw 33dB*

Suitable for new and retrofit

Screw fixing (screws suppied)

 

Tested for durability 200,000 cycles completed without failure for fire rated smoke doors.Surface mount door bottom seal

14mm maximum drop, Seal drops on hinge side before lock side.

Suitable for all types of swing doors.

Noise Reduction Index: up to Rw 33dB*

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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* The actual acoustic performance obtained depends on a variety of factors, such as the door density and any additional threshold & perimeter seals used in conjunction with this product. If in doubt contact us for confirmation.

 

DB Plus Door Bottom Drop Down Seal


Door Bottom Acoustic Seal: Up to 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).

Surface mount door bottom seal

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 ASDBX up to Rw 51 dB* (DIN EN 20 140 -03)

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

Symbol Guide

Rebated drop-down door seal with flush bolts.

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 DBX Seal Plus (Rw 35dB) 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.

Dimensions and schematic of rebated drop-down door seal with flush bolt

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