Lorient LAS8003si Drop Down Seal - 935mm
Lorient LAS8003si Drop Down Seal - 935mm
Lorient LAS8003si Drop Down Seal - 935mm

Lorient LAS8003si Drop Down Seal – 935mm

The Lorient LAS8003 si is a face-fixed or semi-mortised drop seal with a high efficiency mechanism which lifts the seal clear of the floor as soon as the door is opened by a few millimetres; resulting in lower door operating forces. It requires no power connection. Surface mounted application suitable for upgrading existing doors.

Certifire Certificate – CF5179



Product Code LAS8003/935

120 in stock

Next day delivery available


Key benefits
Durable flexible elastomeric fin elements are incorporated with the housing to provide acoustic and smoke properties.
Tested for acoustic performance with BS EN ISO 10140-2: 2010.
Meets the smoke leakage performance requirements of BS 9999 and is used for sealing the threshold of door assemblies against leakage of ambient temperature smoke, as defined in BS 476: Part 31.1: 1983.
Suitable for use on timber fire doors for up to 60 minutes under conditions of BS 476: Pt.20/22: 1987 and BS EN 1634-1: 2014 (when face-fixed).
Tested for reliability, the seal completed 1,000,000 cycles without failure.

Single swing doors.
For use on both right and left handed doors.

Use with
Any perimeter seal.
Any threshold plate.

Min/max gap size

Seal material
Grey silicone rubber.

Standard lengths
335mm, 435mm, 535mm, 635mm, 735mm, 835mm, 935mm, 1035mm,1135mm and 1235mm.
Note: each length can be cut to the next size down.
The 335mm can be cut back to 255mm.

LAS8003 si is face-fixed or semi-mortised onto the door bottom. PVC cover strip should be removed, then drill aluminium and screw to door face, then replace PVC cover strip.

Self-levelling on uneven surfaces. Can be adjusted independently of the fixing screws.







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