SJK / RSK – Backdraft Dampers
- The patented SJK Smooth Flow backdraft dampers are constructed from injection moulded plastic designed with a low resistance gravity damper.
- Both dampers form an excellent seal against backdraft when the fans are switched off.
- The SJK Smooth Flow damper has the lowest resistance of the two models.
- The pressure loss through the backdraft dampers has to be added to the system resistance before selecting the fan.
- The RSK backdraft dampers are manufactured from steel with spring actuated aluminium flaps.
SKU: EFAA-55
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