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Acoustic & Smoke Rated Drop Down Door Bottom Seals

Rebated Automatic Acoustic & Smoke Rated Door Bottom Drop Seal 37db

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.

An acoustically designed seal for rebated applications. Mounted into a 13mm x 28mm groove that has been morticed into the bottom edge of the door.

Symbol Guide

 



It is operated automatically by pressure against the door jamb on its plunger and seals when the door closes and retracts automatically when the door is opened.

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 37dB*

Min/Max Gap: 3mm - 13mm.

Seal Lengths:
330mm, 430mm, 530mm, 630mm, 730mm, 830mm, 930mm, 1030mm, 1130mm, 1230mm.
Maximum trimming length 100mm.

Aluminium carrier

Seal easily removed to prevent damage during installation.

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Surface Mount Automatic Acoustic Rated Door Bottom Drop Seal 37db

 

Door bottom seal - surface mount type.

Surface Mounted version of the DB drop down seal (above)

Suitable for wooden or metal door assemblies.

Aluminium body with rubber coextruded seal and carrier.

Sound reduction of up to Rw 37dB*

Suitable for new and retrofit applications

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 37dB*

Min/Max Gap: 3mm - 14mm.

Seal Lengths:
330mm, 430mm, 530mm, 630mm, 730mm, 830mm, 930mm, 1030mm, 1130mm, 1230mm.
Maximum trimming: 20mm - 330mm | 120mm - 430mm | 150mm - 530mm to 1230mm

Finish: Silver Anodised Finish.

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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.

 

Rebated Automatic Acoustic & Smoke Rated Door Bottom Drop Seal 51db


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 plunger and seals when the door closes and retracts automatically when the door is opened.


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).

Seal easily removed to prevent damage during installation.

Surface mount door bottom seal

Noise Reduction Index up to Rw 51dB* (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.

Aluminium carrier

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DB PLUS Seal Extension

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 DB Seal Plus drop down seal.

10mm maximum drop and the seal is manually lowered on the handle side.

Also available are 150mm Stainless Steel Flush Bolts with radiused ends designed to work with the DB Seal Extension.

Suitable for double leaf timber doors.

Acoustically and smoke tested on proprietary fire doors.

Noise Reduction Index Rw 35dB.

Symbol Guide

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Dimensions and Schematic Diagram.

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

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