Bachsmoke DHA
DESCRIPTION
BACHSMOKE DHA is an Automatic Smoke Curtain that in the case of fire, limits
and controls the movement of smoke, with classification DHA.
The curtain is composed by: fiberglass fabric with polyurethane coating on both
sides seamed with reinforced steel wire and fixed to a steel roller of 78 mm of
diameter; galvanized steel elements as headbox, side guides and 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 220 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.
OPERATION
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.
FABRIC
The fiberglass fabric resists up to 1100ºC. 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 reinforced stainless steel wires with a coating of Kevlar.
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