APPLICATION
KVCD volume dampers series are designed to provide superior air control with high performance and heavy duty construction. KVCD-3V10 or 20 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 requiring flanged frame.
They are designed and built to provide cost effective and reliable dampers with high free area with a very low pressure drop.
STANDARD CONSTRUCTION
• FRAME:
18 Ga galvanized steel Flanged frame construction with 35mm flanges.
• BLADES:
16 Ga galvanized steel 3V type blades
Parallel blades model KVCD-3V10
Opposed blades model KVCD-3V20
• 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) FRAME CONSTRUCTION
a) Aluminum or stainless steel frame construction.
b) Frame thickness 1.5mm or 1mm (for 1mm thickness not available for Aluminum construction).
2) FLANGES:
Variable size of frame flanges sizes: 20, 25, 30 or 40mm.
3) BLADES CONSTRUCTION
Aluminum or stainless steel blades construction.
4) Rubber foam blade seals. (-BS)
5) BEARINGS:
Bronze bearings (std for motorized dampers)
or stainless steel bearings.
6) ACTUATORS:
a) Electric (24,120 & 230V) or pneumatic.
b) Spring return or non-spring return.
c) With or without auxiliary switch.
7) Blades indicator switch - BIS
8) EXTENDED SHAFT (without Hand Quadrant):
4.7” (120mm) extended shaft (round or square) beyond the air control frame.
9) 2" Elevated hand bracket.
MINIMUM SIZES:
a) SINGLE BLADE TYPE:
4"W(101mm) x 4"H(101mm).
b) MULTI-BLADES :
4"W(101mm) x 10"H(254mm)
MAXIMUM SIZES:
a) SINGLE BLADE TYPE:
48"W(1219mm) x 9"H(229mm)
b) MULTI-BLADES SINGLE SECTION:
48"W(1219mm)x 48"H(1219mm)
MULTI-SECTIONS: UNLIMITED