KACAB-12 or 22 is an Ultra-low leakage damper designed to provide superior air control with high performance and heavy duty construction. Dampers are especially designed for manual & motorized balancing & Shut off applications. They are suitable for use in the majority of commercial medium to high pressure and velocity HVAC systems.
They comply to IECC (International Energy Conservation Code) with a leakage rating of 3cfm/ft2 at 1"Wg pressure (55cmh/m2 at 0.25Kpa) or less.
STANDARD CONSTRUCTION
• FRAME:
16 GA galvanized steel interlocking hat channel frame construction.
• BLADES:
Extruded aluminum double skin airfoil blades
Parallel blades model KACAB12
Opposed blades model KACAB22
• SEALS:
Stainless Steel Jamb Seal
Rubber Foam Blade Seal
• BEARINGS:
Nylon bearings
• AXLES:
0.47”(12mm) Square zinc plated steel stud
• LINKAGE:
Concealed in frame 10Ga (3mm) zinc plated steel
• MANUAL HAND-QUADRANT:
Galvanized steel die cast hand-quadrant plated for square or round shaft installed on an elevated bearing bracket
• BRACKET:
1” (25mm) elevated hand bracket
• FINISH:
Mill galvanized
MINIMUM SIZES:
a) SINGLE BLADE: 6"W(152mm) x 6"H(152mm)
b) MULTI-BLADES: 6"W(152mm) x 12"H(305mm)
MAXIMUM SIZES:
a) SINGLE BLADE: 48"W(1219mm) x 10"H(254mm)
b) MULTI-BLADES SINGLE SECTION:
48"W(1219mm)x 48"H(1219mm)
MULTI-SECTIONS: UNLIMITED
Dampers are supplied 1/4" less than order WIDTH & HEIGHT unless specified "ACTUAL SIZE"
OPTIONS
1) BEARINGS:
Bronze bearings (std for motorized dampers) or stainless steel bearings.
2) FRAME CONSTRUCTION
Aluminum frame construction or stainless steel frame construction.
3) ACTUATORS:
a) Electric (24,120 & 230V) or pneumatic.
b) Spring return or non-spring return.
c) With or without auxiliary switch.
4) Blades indicator switch - BIS
5) FLANGES:
Standard duct flanges 35 mm (with 1.5 mm thickness for damper without sleeve or same as sleeve thickness) or duct mate flanges 35mm
6) SLEEVES :
Refer to the air control damper sleeve catalogue for standard type of sleeve
7) EXTENDED SHAFT (without Hand Quadrant):
4.7” (120mm) extended Shaft (round or square) beyond the air control frame.
8) 2" Elevated hand bracket.