HD Series - Circular Spigotfit, Galvanised Steel Blades, Hand Operated/ Extended Spindle FD-A-G-AF100x600

HD Series - Circular Spigotfit, Galvanised Steel Blades, Hand Operated/ Extended Spindle FD-A-G-AF100x600The HD series damper range offers damper blade profiles that provide air volume control through to low closed blade leakage characteristics designed for systems where high air pressures and velocities are involved. With its robust construction, the HD series damper blades make it the ideal choice for use on air handling units, and the aerodynamic blade profile encourages smooth airflow offering minimal pressure drop. Side covers are fitted to the

shock-proof construction

and long-term stability when automating ventilation windows or ventilation flaps

Simplified synchronisation of the units

Improves long-term durability of actuator systems

Melinex lined silencers must be used to prevent grease impregnation into the acoustic media for kitchen extract applications as prescribed in DW/172 HVAC Specification For Kitchen Ventilation Systems

Weight (kg): 6

Double Insulated (Class II)

Motor Efficiency: 86

● Trickle and boost function

and long-term durability

LD motorised lobby dampers have vertical damper blades whilst the LDN has horizontal damper blades

twin fan or Master & Slave Fans selected via the remote LCD Display