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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, click on an image below to go to the specific product page. For information on our 'Non-Breathable Connector' range, click here.
LM3 | LM4 | Teflex | ||
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Material |
100% woven polypropylene | 100% woven polyester | 100% woven Teflon PTFE |
100% polyester |
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 Resistivity (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) |
13 (cm3/cm2/sec@125Pa) 25 (ft3/ft2/min@0.5”wg) |
0.4 (cm3/cm2/sec@125Pa) 0.8 (ft3/ft2/min@0.5” wg) |
0.3 (cm3/cm2/sec@125Pa) 0.5 (ft3/ft2/min@0.5” wg) |
17 (cm3/cm2/sec@125Pa) 33 (ft3/ft2/min@0.5” wg) |