Seals that are designed to fill the gap between the bottom of a door and the floor or sill are called Door Bottom Seals. There are two common versions of these seals; the mechanically lifting automatic seal and the sweep seal. The operation of both of these seals is enhanced when they are used in conjunction with a low profile threshold plate which has been fixed to the sill immediately under the door.The automatic door bottom seal lifts automatically as the door is opened and conversely lowers to seal as the door is closed. This ensures that the seal does not impede the normal function of the door, allowing the seal to lift clear of carpets and other obstacles. They look neat if face mounted to the door and some versions can even be fully morticed into the door, out of sight. The sweep seal operates by bringing a flexible seal, mounted on the door, into contact with a low profile threshold plate. These seals are often made of a strip of flexible PVC (rubber or brush) mountednto an aluminium holder.
A concealed, acoustic automatic door bottom silicon seal for medium temperature smoke and fire door applications.
TS8Si is spring loaded to lift clear off the floor as soon as the door leaf is opened by a few millimetres. Mounted into a 15mm x 34mm groove that has been morticed into the bottom edge of the door, it is operated automatically by pressure against the door jamb on its adjustable strike block. TS8 Si can also be fitted into the bottom hollow rail of an aluminium door by the fabricator.
Location Single and double butt hinged doors.
Min/Max Gap 3mm to 13mm. Seal Sizes 1220mm, 1070mm, 920mm, 820mm, 600mm, 380mm to 295mm(min). Seals cut back to exact size. Standard Finish Aluminium anodised 15 microns. Satin Clear (Silver) or Bronze finish. Seal Material Silicon Rubber (SE) (Grey). Fixing Method Concealed, with supporting colour matched stainless steel escutcheon plates. Screws supplied. Adjustment Has adjustment strike block screw for sealing action adjustment. Escutcheon Plate Dimensions Stainless steel rounded: 22mm wide, 57mm high, (Ø22mm router bit) 1.2mm thick. Replacement Seal TS308 Si.
