COMBINATION FIRE SMOKE DAMPE
UL 555 & UL 555S Classified combination fire smoke damper used in dynamic smoke management system and can be used in a 2 or 4 hours walls or floors . It meets NFPA 90A , UL 555 & UL 555S
Operation & Dynamic closure for Vertical & Horizontal mount with airflow on both sides rated:
-Max static pressure : up to 4” W.G(1000 Pa)
-Max Velocity : up to 4000 FPM (20.3 m/S0
-Operating Temp : up to 350ºF (177 ºC)
STANDARD CONSTRUCTION
FRAME
16 gauge (1.6 mm) galvanized steel interlocking hat section channel frame construction.
BLADES
16 gauge (1.6 mm) galvanized 3 “V” formed .
CLOSURE DEVICE.
Electronic fusible link with closure temperature of 165 ºF(74ºC) (others available)
BEARINGS
Sintered bronze, oil impregnated.
LINKAGE
Plated steel in opposed blade configuration, concealed inside the jamb, Operator shaft ½ “ steel rod.
FINISH
Mill Galvanized
BLADE SEALS
Extruded silicone blade seals and stainless steel jamb seals.
JAMB SEALS
300 series stainless Steel , flexible metal compression type.
SLEEVES
Rectangular 18GA x 16” galvanized steel
MINIMUM SIZE SINGLE SECTION
8” width x 6” Height
MAXIMUM SIZE SINGLE SECTION
36” Width X 48 “ Height Vertical
36” x 36 “ Vertical /Horizontal
OPTIONAL CONSTRUCTION
Heat sensor -212 ºF ,250ºF
JACK SHAFT
½ “ ( 12.7 MM) diameter zinc plated steel with jack shaft connector coupling
ACUATOR :
Electric spring return 230 V ,120 V or 24 V and pneumatic.
CAULKING
UL approved silicone sealants
OPTIONS
Closure device –Fusible Link
Bearings : Stainless Steel
Actuator Mounting : External & internal
Optional Material : Stainless steel construction
Sleeves : Round, Oval and specials.