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  1. airductservices

    pressure drop across 2 duct silencers

    I have just completed a university project. Air balancing contractor is coming back with excessive resistance on REF1. REF1 is a booster behind the mixing box on 30ton air handler. REF1 is rated for 11,000 cfm. On each side of REF1 I have and Industrial accoustics 5ES silencer 42x36-60 with a...

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