Fire & Smoke Dampers All Types, All Sizes, All Styles

SD-333-3 Leakage Smoke Dampers – Class 3

SD-333-3-PB Smoke Damper Technical Specifications


SLEEVE OPTIONS
Round transition (Type CR)
Oval transition (Type CO)
Rectangular transition (Type C)



OPERATIONAL RATING
Velocity: up to 2400 fpm
Pressure: up to 4 in. w.g.
INSTALLATIONS: Vertical and Horizontal
OPERATION: Parallel Blade
STANDARD CONSTRUCTION
POWER OPEN/SPRING CLOSURE
FRAME:
16 GAUGE GALVANIZED STEEL INTERLOCKING
STACKED HAT SECTION CHANNEL FRAME
CONSTRUCTION
BLADES:
16 GAUGE GALVANIZED 3″V” FORMED
BEARINGS:
SINTERED BRONZE, OIL IMPREGNATED
AXLES:
1/2 SQUARE ZINC PLATED STEEL STUDS
LINKAGE:
.12 X .50 ZINC PLATED STEEL CONCEALED IN THE
CHANNEL FRAME
FINISH:
MILL GALVANIZED
BLADE SEALS:
60-65 DUROMETER SILICONE RUBBER WITH LAMINATED
ACRYLIC ADHESIVE PERMANENTLY BONDED TO BLADE
EDGES.
JAMB SEALS:
CORROSION RESISTENT STAINLESS STEEL
JACKSHAFT:
1/2″ DIAMETER ZINC PLATED STEEL WITH JACKSHAFT
CONNECTOR COUPLING
CAULKING:
UL APPROVED SILICONE SEALANTS: DOW CORNING RTV-
732, 999A, GE-1200
OPTIONAL MATERIAL:
Stainless steel construction
ACTUATOR:
Specify type: Electric or Pneumatic
Specify brand: SIEMENS, HONEYWELL,BELIMO
Specify mounting: External or internal
Specify voltage: 24V, 120V, 220V

Manufacture Limited Warranty

Products manufactured by Lloyd Industries are warranted to be free from defects in material and workmanship for a period of 12 months after being installed or placed in service, but in no instance shall the period of warranty be longer than 18 months from the date of original shipment by Lloyd Industries.

Lloyd Industries warrants that it will furnish replacement material, or at its option, repair any product of its manufacture that is proven to Lloyd Industries satisfaction to be defective in material or workmanship during this described warranty period… [Click Here to Download Full Warranty]

Do you have any
questions?

Contact us today at (800) 810 3280 and we will be happy to assist with any concerns while making your selection!