KACAB volume dampers series are designed to provide superior air control with high performance and heavy duty construction. KACAB11 or 21 Dampers are specifically designed for manual balancing applications. They are suitable for use in the majority of commercial medium to high pressure and velocity HVAC systems.
They are designed and built to provide a cost effective and reliable dampers for reduced volume control and not positive shut-off.
STANDARD CONSTRUCTION
• FRAME:
16 Ga galvanized steel interlocking hat channel frame construction.
22Ga galvanized steel Flat type frame.
• BLADES:
Extruded aluminum double skin airfoil blades
Parallel blades model KACAB11
Opposed blades model KACAB21
• SEALS:
Stainless Steel Jamb 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
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) a) FLANGES FOR HAT TYPE FRAME:
Standard duct flanges 35mm (with 1.5mm thickness for damper without sleeve or same as sleeve thickness)
or duct mate flanges 35mm
6) b) FLANGES FOR FLAT TYPE FRAME:
Standard duct flanges 20mm (with thickness same as flat type frame thickness)
or duct mate flanges 35mm
6) SLEEVES (Not applicable on Flat type):
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.
9) Extended frame depth for Flat Type
MINIMUM SIZES:
a) SINGLE BLADE FLAT TYPE:
4"W(101mm) x 4"H(101mm).
b) SINGLE BLADE HAT TYPE:
14"W(355mm) x 6"H(152mm) & 12"W(305mm) x 8"H(203mm) & 6"W(152mm) x 10"H(254mm)
c) MULTI-BLADES :
6"W(152mm) x 12"H(305mm)
Notes: Dampers with width 4” & 5” are only available up to 8” height
MAXIMUM SIZES:
a) SINGLE BLADE FLAT TYPE:
10"W(254mm) x 8"H(203mm) & 12"W(305mm) x 6"H(152mm) & 48"W(1219mm) x 5"H(127mm)
b) SINGLE BLADE HAT TYPE:
48"W(1219mm) x 10"H(254mm)
c) MULTI-BLADES SINGLE SECTION:
48"W(1219mm)x 48"H(1219mm)
MULTI-SECTIONS: UNLIMITED
For hat type: dampers are supplied 1/4" less than order WIDTH & HEIGHT unless specified "ACTUAL SIZE"
For flat type: dampers are supplied with "ACTUAL SIZE"