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BFM® Breathable Connectors

BFM® fitting's breathable connector range is ideal for processes that require airflow, but containment of product dust. They are also ideal for low temperature (LM3) or high temperature (LM4 & Teflex) use.  Teflex is also particularly suited to use with more extreme chemicals.

The chart below is a basic summary of our key breathable connector range - for more detail, refer to 'Product Specification Summary: Breathable Connectors' document, or you can click on an image below to view the specification sheet for that particular product. For information on our 'Non-Breathable Connector' range, click here.

 

  LM3 LM4 Teflex

FM1 Breather

  BFM LM3 BFM LM4 BFM Teflex

 Material

  100% woven  polypropylene   100% woven polyester   100% woven Teflon     PTFE

  100% polyester
 multi-filament scrim  supported needle felt

 Weight
 (± 10%)
 295g/m2  /  8.7oz/yd2   393g/m2  / 11.6oz/yd2  678g/m2  / 20oz/yd2

 550g/m2 / 16.22oz/yd2

 Temperature  Range:        
    Continuous  -70 - 94°C / -94 - 201°F  130°C / 266°F  260°C / 500°F    130°C / 266°F
    Surge  107°C / 225°F  150°C / 302°F  280°C / 536°F  150°C / 302°F
 Surface  Resistance  (Ohms)  108  109  Insulative  108
 FDA Approved  CFR 21 177.1680 &  177.2600  CFR 21 177.2800  CFR 21 177.1550  CFR 21 177.2800
 EU Approved  EC 1935/2004 &  10/2011  EC 1935/2004 & 10/2011  -   -
 ATEX Certified  -  Approved for all dust  explosion hazardous
 areas.  Some restrictions
 pply.
 -  -
 Air  Permeability 
 (NB: 125Pa = 0.5”
  water gauge)
 12.7  (cm3/cm2/sec@125Pa)
 25  (ft3/ft2/min@0.5”wg)
 0.381
 (cm3/cm2/sec@125Pa)
 0.75
 (ft3/ft2/min@0.5” wg)
 0.254
 (cm3/cm2/sec@125Pa)
 0.50
 (ft3/ft2/min@0.5” wg)
 17
 (cm3/cm2/sec@125Pa)
 33
 (ft3/ft2/min@0.5” wg)

 

 


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