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Problem: Corrosive Air Streams, Solution...

When dealing with the exhaust of corrosive air streams, whether it be in laboratories, pool chemical rooms or Universities, sometimes the corrosive resistant duct itself needs to pass through occupied spaces.  This can make the material choice for these types of applications difficult.  On one hand, you need a material that can stand up to the harsh chemical airstreams, some that even stainless steel can’t handle, while at the same time this very same duct needs to be rated for both low flame and low smoke to satisfy Fire Code.  In the past, Fiberglass Reinforced Plastic Duct fabricated entirely from vinylester resin has been used with the additional  expense of applying external fire wrapping or intumescent paint.

 

 

So there is the problem, now for the Solution.

 

FRP Solutions by Monoxivent fabricates Hybrid Lab Duct for corrosive applications that require a Class 1 rating for both flame and smoke.  The interior of the duct is constructed of a vinylester resin, chosen for whatever the corrosive agent may be. The structural and external layers of the duct however are composed of our Modified Acrylic resin.  This Acrylic resin, typically used in our UnderDuct HVAC Solution, has passed the ASTM E-84 test for both flame and smoke without the addition of expensive traditional fire treatments.  This Hybrid Solution provides the perfect answer for exhausting corrosive materials through occupied spaces.  You can learn more about our Hybrid Solution here: http://fiberglass-duct.com/solutions/hybrid-lab-duct

 

 

 

Lab Duct can handle a wide variety of chemical fumes, including strong acids and caustics. Condensate formed in the duct system can concentrate these chemicals due to evaporation, making them even more corrosive. Because a Lab is considered occupied space, the structural and exterior surface of the duct requires a low smoke and flame rating per UL-181, as well as low fire-gas toxicity. This product blends the interior corrosion barrier with an exterior Class 1 duct material.

Hybrid-CF (Corrosive Fume) duct has an interior layer of corrosion resistant vinyl ester resin while the structural and exterior layers are fabricated with Monoxivent’s 824 UnderDuct Resin. The unique blend offers the required corrosion resistance often needed with the protection of a low smoke, low flame Class 1 Duct that is required for use in occupied buildings.

 

Applications
  • Hospitals

  • Aquariums

  • Dog Kennels

  • Exposed Vehicle Exhaust Duct

  • Laboratories

 

    Hybrid Duct

     

    1. Vinylester Interior – Fire Retardant Corrosion Liner

    2. Modified Acrylic Structural Layer – Class 1 Rated for Low Smoke & Low Flame

    3. Modified Acrylic Exterior – Class 1 Rated for Low Smoke & Low Flame

    4. Exterior Coating – Factory Applied Corrosion Resistant Gel Coat

     

     

     

     

     

     

     

     

     

     

     

     

     

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