Your enquiry is empty!
Robust volume control dampers for large scale balancing applications.
The new NCA S800B heavy-duty volume control damper has been designed to suit applications requiring a large-format volume control damper for balancing or throttling applications, without the requirement of verified low leakage levels when fully closed.
Suitability for high airflow velocities is provided by the robust construction utilising a 180mm deep galvanised steel frame.
The robust construction comprises a 1.2mm galvanised steel frame, 1.5mm thick roll formed 'triple-v' blade/s and an all-steel low torque drive system, ensuring smooth operation.
Although untested for blade leakage when closed, S800B dampers are available with silicone rubber blade edge seals and/or stainless steel frame side seals if required. Should verified levels of blade leakage be required, we would recommend NCA S800C heavy-duty shut-off dampers.
Like all dampers available from HVC, the drive system is protected from dust and dirt by being positioned within the channel outer frame, making S800B dampers less susceptible to requiring frequent maintenance than rival units where the linkage is within the airstream.
A range of control options is available for your S800B dampers, from locking quadrants to factory-fitted electronic or pneumatic actuators. ATEX rated actuators can be supplied if required.
Minimal resistance to airflow is another benefit of the large format design, with the 150mm blade pitch allowing a maximum free area of around 80%.
Large single section sizes are available thanks to the low torque characteristics of the drive system which means single sections of up to 1.2m x 2m can be manufactured and driven from a single actuator.
Features for S800B Heavy Duty Volume Control Dampers include -
Please download the product PDF for detailed information and ordering codes.
If you have any questions about heavy-duty volume control dampers, please contact us today.
Struggling to find what you need, or just require more information? Please contact our dedicated sales team.