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  • Users: Kmann444
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  1. Kmann444

    Medium pressure ductwork

    How is medium pressure air reduced to low pressure I saw a installation where they used a pneumatic air valve to reduce pressure to low pressure . The work was done 40 years ago .I was wondering if this is still the way to go on an alteration
  2. Kmann444

    Medium pressure ductwork

    How do you lower medium pressure ductwork to low pressure ductwork

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