Airflow management

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  Blue-R – round volume control damper
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  Blue-RC4 – round volume control damper tightness class versions acc. to EN 1751
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  Blue-S – volume control damper
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  Blue-S2 – volume control damper for heavy duty operation
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  CAV HP – round constant flow damper
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  CAV-R – round constant flow
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  CAV-S – constant flow
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  NRD61 – back draft damper
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  NRD61V – horizontal mounted vertical flow back draft damper
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  NRDR – backdraft damper for round ducts
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  PRD61 – pressure relief damper
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  VAV 3000 Grand Controller

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