Norsound NOR841 Retro Fit Glass Door Bottom Auto Drop Seal

Norsound NOR841 Retro Fit Hinged Glass Door Bottom Auto Drop Seal | Glass 10mm | Side-Glass Mount | 14.6 × 44.5mm

The NOR841 is a single-actuation automatic drop seal designed for retrofit installation to the side face of hinged acoustic glass doors with 10mm glass thickness. It shares the same housing profile, actuation mechanism, and fixing method as the NOR840, but is specifically sized for 10mm glass. The housing is bonded to the side face of the glass door leaf. For 8mm glass with side mounting, see the NOR840; for glass >6mm with side mounting, see the NOR842.

The NOR841 housing is manufactured from aluminium with a silicone gasket, supplied in silver anodised (C 0) or stainless steel-coloured anodised (C 31) finish. The housing profile is 14.6 × 44.5mm. Standard lengths are 708mm, 833mm, 958mm, 1083mm, and 1208mm, with a 125mm cutback. Single actuation. Bonded with adhesive (not supplied).

Applications

• Hinged acoustic glass doors — 10mm glass, side-glass mounting — bond to the side face of the 10mm hinged glass door leaf to seal the gap between the door bottom and the floor when the door is in the closed position. The housing is sized for 10mm glass, ensuring correct positioning of the seal relative to the floor on closing. Select the appropriate length for the door leaf width, accounting for the 125mm cutback at the actuator end.
• Retrofit installation on existing 10mm hinged glass doorsets — the bonded fixing method allows the NOR841 to be installed on existing glass door leaves without drilling or screwing into the glass.

Product Benefits

• Sized for 10mm glass — correct housing fit for side-face bonding. The 14.6 × 44.5mm housing profile is dimensioned for side-face mounting on 10mm glass, ensuring the seal is correctly positioned relative to the floor when the door is closed.
• Side-glass mounting — alternative to under-glass mount where underside access is restricted.
• Single-actuation automatic drop mechanism — consistent sealing on every close.
• Bonded fixing — no drilling into glass required.
• Five standard lengths — 708mm to 1208mm.
• Two finish options — silver anodised and stainless steel-coloured anodised.

Installation

Select the appropriate seal length for the door leaf width, accounting for the 125mm cutback at the actuator end. Clean the side face of the 10mm glass door leaf thoroughly — the surface must be dry, grease-free, and free from contamination before bonding. Apply a suitable structural adhesive (not supplied) to the housing and press it firmly onto the side face of the glass, ensuring correct alignment. Allow the adhesive to cure fully before operating the door.

Once cured, close the door and check that the actuator engages the door stop cleanly and the seal carrier drops to make full contact with the floor. Check that the carrier retracts fully on opening.

The Technical Details