BACHSMOKE DA is an Automatic Smoke Curtain that in the case of fire, limits
and controls the movement of smoke, with DA classification.
The curtain is composed by: fiberglass fabric with polyurethane coating on both
sides seamed with high resistant kevlar wire and fixed to a steel roller of 78 mm
of diameter. Galvanized steel headbox and aluminum profile bottom bar.
All the system is driven by a 24 V tubular motor and controlled by an electronic
board, CRM (Control and Regulation for Motor) with special Gravity Fail Safe
System.
The control panel for automatic curtains (CBM), with a nominal input voltage of
115 V or 230 V and output voltage of 24 V.
Uninterruptible Power Supply (UPS System) with autonomy up to 6 hours exists
in all control panels.
Tested and approved according to the European Standard UNE EN 12101-1 and
with CE Marking.

The system can be activated by a SHEV, fire alarm contact, internal fire and smoke detection devices, or manual emergency buttons. In the event of a fire, the BACH’s Control Panel (CBM), receives the signal alarm, and the automatic curtain deploys automatically, with controlled and safe constant speed of descent even following total power loss on all curtains. If there is a false alarm the curtains return to stand-by position automatically after reset of alarm from main Fire Management Systems.
In case of main power loss, the curtain will remain fully retracted up to 6 hours thanks to BACH’s battery back-up system.

The fiberglass fabric resists up to 600ºC. The polyurethane coating on both sides guarantees mechanical stability when handling the fabric not only in the sewing process but also during the installation. All seams are done with high resistance Kevlar wire.

Galvanized Steel head-box 1,2mm thickness with different possibilities to adapt to different architectural spaces, and maintenance requirements.
Dimensions of the head-box varies depending on width and height of the curtain.

Galvanized Steel of 1,5mm thickness and 78mm diameter. Special slide system for fixing the fabric.

Aluminum profile RAL 9003 white painted of 1,8mm thickness.

BACH tubular motor 24Vdcc
Maximum power 24 W/18,5Nm
Maximum current 3 A
Average linear speed 0.10 m/s to 0.15 m/s

Polyester box IP56 with an electronic board inside to control the movement of the motor.
Dimensions (W x H x D) 120mm x 160mm x 75mm

Receives the signal alarm from Fire Management System and controls the movement of curtains. Visual and acoustic alert system.

Dimensions (W x H x D) from 300 x 230 x 140 mm to 400 x 400 x 210 mm
Input 115 or 230 Vac 50Hz
Output 24Vcc
Battery 2 x 12Vcc 7,5 Ah rechargeable (up to 6 hours autonomy), 2 x 12Vcc 1.3 Ah rechargeable (up to 1 hour autonomy)
Maximum capacity up to 12 motors

RAL coating head-box, side guides, bottom bar and false ceiling extra accessories.
Stainless steel elements head-box, screws, rivets.
Headbox customized set-up for specific architectural or special operational requirements.
False ceiling acessories aluminum profile painted RAL 9003 to hide head-box over false ceiling.
CBM control panel special designs up to 48 motors in one control panel, additional information output, micro switches, communication with other devices, special battery backup, possibility of delaying curtain deployment.
Escape button pushing this button the curtain goes up and the user can escape through the opening, the curtain deploys 30s later automatically.
Emergency button pushing this button the curtain deploys immediately.

Note: other requirements and customized solutions on demand.