Materials
Casing : 0.7 mm thickness galvanized steel. |
Damper blade : Double layer 0.7 mm thickness galvanized steel with a sandwiched peripheral gasket. |
Internal insulation : 25mm (1”) 32 kg/m³ (2 lb) density fiber glass with matt black tissue facing. |
Bearing : Engineering plastic. |
Hexagon shaft : Hexagon bar mild steel |
Differential pressure sensor : Aluminum. |
Air Volume Control Type
Variable Air Volume (VAV) Pressure Dependent Control | Variable Air Volume (VAV) Pressure Independent Control |
Constant Air Volume (CAV) Pressure Independent Control |
• Without differential pressure sensor. • Pressure dependent. • No monitoring of air volume. |
• With differential pressure sensor. • Pressure independent. • Air volume varies depending on design flow and signal by controller. • Air volume could be monitored. |
• With differential pressure sensor. • Pressure independent. • Air volume is constant (design flow) provided that the minimum static pressure is achieved. • Air volume could be monitored. |
Features
• Oval shape damper for better flow management.
• Neoprene peripheral gasket to prevent leakage.
• Multi-point averaging inlet differential pressure sensor.
• 1”, 2 lbs fiberglass with black matt tissue internal insulation for noise reduction.
• Round inlet with beading for good inlet connection.
• Hexagon shaft for better grip mounting of actuator.
• Shaft indicator indicating damper position.
• Tube conceal (optional).
• Double layer heavy gauge damper blade.
• Protective metal shroud for control components mounting.
• Low pressure drop construction with round inlet and rectangular outlet- static regain.
• Can be used for Constant Air Volume (CAV) application.
• Rectangular discharge opening with slip and drive cleat duct connection.
• Optional internal perforated sheet or aluminum foil facing.
• Reheat coil available upon request.
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