Briton 1120BT Adjustable Door Closer – Matt Black
The Briton 1120 Series is a non-handed, slimline door closer designed for commercial interior and exterior timber and metal doors, including storeroom, office and toilet applications. Door closing is hydraulically controlled with adjustable valve regulators to suit site conditions.
Key Features
- Universal, fully reversible, non-handed door closer.
- Hydraulic control with adjustable backcheck, closing speed and latching speed.
- Precision rack and pinion mechanism.
- Surface mounted to door face or top jamb.
- Tested to 500,000 operating cycles.
Fire Rated
- Successfully tested on fire door assemblies in accordance with AS1905.1 Fire Resistant Doorsets.
- Fire door suitability must be confirmed with the door manufacturer prior to installation.
Specifications
- Item Code: 1120BT
- Product Type: Adjustable door closer
- Installation Options: Regular arm (pull side), top jamb (push side), parallel arm (push side)
- Spring Strength: EN2 to EN4 (regular arm), EN1 to EN3 (track arm)
- Factory Setting: EN3
- Construction: Pressure die cast aluminium body with steel rack and pinion
- Adjustable Closing Speed: Yes
- Adjustable Latching Speed: Yes
- Backcheck: Yes
- Slide Arm: Yes
- Finish: Matt Black
What's In The Box
- Briton 1120 series door closer body
- Slide arm assembly
- Mounting hardware
Suitable Uses
- Commercial interior doors including offices, storerooms and amenities.
- Commercial exterior timber and metal doors requiring controlled closing.
- Fire rated doors when approved by the door manufacturer.
Frequently Asked Questions
- Is this door closer suitable for fire doors?
Yes. The Briton 1120 series has been tested to AS1905.1, however final suitability must be confirmed with the fire door manufacturer. - Can the closing speed be adjusted on site?
Yes. Backcheck, closing speed and latching speed are independently adjustable using the hydraulic valves. - Does this suit left and right hand doors?
Yes. The closer is non-handed and suitable for both left and right hand door installations.
Additional Information
- The 1120 series is commonly selected where a slide arm is preferred for reduced projection and improved vandal resistance.
- Installers should adjust spring strength to suit door size and weight rather than relying on the factory EN3 setting.
- Incorrect backcheck adjustment can cause excessive stress on door frames and hinges.
