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Heavy Duty Control Dampers
The Heavy Duty Multi-Leaf Volume Control Damper has been specifically
designed for installation in systems where high air pressures and velocities
are experienced. Combined with a robust construction, the damper is
suitable for use on air handling units. Dampers for air control can be
manufactured with a single drive to a maximum size of 2500mm
wide x 2000mm High.
where low closed blade leakage is required, the max. size with a single
drive is 1000mm x 1000mm. Manual Quadrant Control, Motor Option or
19mm dia.
Extended Spindle for actuation by others are available as standard.
Features :
* Standard case construction is galvanised mild steel.
* Three airfoil blade designs.
* Four casing options.
* Low and high pressure models.
* Out of airflow linkage.
* Easy conversion from manual to motorised or vice versa.
* Can be supplied with blades and case in 316 or 430 stainless steel.
* Balance and control dampers.
* Infinite sizing capability.
* Variable flange dimensions and casing widths.
* Comprehensive control options.
* Stainless steel side seals to order.
Specifications and Testing :
* Unless stated otherwise, flange models suitable for class A & B of DW144, spigot models suitable for class A B & C
* Conforms to HVCA specification DW144
* Conforms to Eurovent 2/2 classes A - C
* Independent performance tests for pressure drop, leakage and airtightness. Test reports 158 and 160 refer.
Baldes :
The 100mm wide galvanised blade is offered as standard with the option of extruded aluminium airfoil section or precision rolled grade 430 or 316 stainless steel available to order. All blades are fitted to 19mm diameter spindles. All models are available with either opposed or parallel blades (unless specified, opposed blades will be supplied as standard). Fitted to the ends of the aluminium blades are End Caps to alleviate noise generation.
This product was added to our catalog on Saturday 13 January, 2007.
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