LAS8040 Drop Seal

Mortised

A medium duty, mortised automatic drop seal. The unique double activated mechanism has an adjustable brass striker button at the hinge side and a nylon striker at the latch side. The mechanism also contains additional internal seals and a double compression facility to provide exceptional acoustic performance. Can be used for both 44mm and 54mm doors.


A single activated variant is also available for use on double doors (LAS8040 SA).

Finish

System specification

PropertyLAS8040LAS8040 SA
LOCATIONSingle swing, single leaf doors. For use on both right and left handed doorsSingle swing, single or double leaf doors. For use on both right and left handed doors
MIN/MAX GAP SIZES3mm/14mm3mm/14mm
SEAL MATERIALFlexible thermoplastic elastomer gasket + internal finsFlexible thermoplastic elastomer gasket + internal fins
FINISHESSilver anodised aluminium with black flexible gasketSilver anodised aluminium with black flexible gasket
STANDARD LENGTHS 535mm, 635mm, 735mm, 835mm, 935mm, 1035mm + 1135mm. Note: Each size cuts back by 100mm (50mm from both ends). . 535mm cuts back by 80mm335mm, 435mm, 535mm, 635mm, 735mm, 835mm, 935mm, 1035mm + 1135mm. Note: Note: Each size cuts back by 100mm. 335mm cannot be cut back
ADJUSTMENT Self-levelling on uneven surfaces - can be adjusted independently of fixing screws. Adjust using the buttons at either end of the sealSelf-levelling on uneven surfaces - can be adjusted independently of fixing screws. Adjust using the brass button at the hinge side of the seal
Test evidence Acoustic: BS EN ISO 10140-2: 2010 (up to Rw 40dB)Acoustic: BS EN ISO 10140-2: 2010 (up to Rw 40dB)
Performance Meets smoke requirement: BS 9999: 2017Meets smoke requirement: BS 9999: 2017

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