ATEX BADA Non-return valve

An explosion involves not only the immediate processed material, but can also propagate to the rest of the process. This propagation can be avoided if the affected processed material is quickly isolated by a non-return valve.

The BADA non-return valve is designed to separate the filter from the plant. It is a simple and effective system that is easy to install, without electronics which require no electrical connections, practically no maintenance and with very low-pressure loss.


  • An economically suitable solution for security against an explosion
  • Completely mechanical requiring practically no maintenance
  • NO power consumption
  • Low-pressure loss
  • High-pressure resistance


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Product range

  • Series includes diameters Ø200 up to Ø1000, all in stock
  • NPFA certified for the USA/Canada market
  • You can order a position sensor or a dust level sensor as an option
  • Sold with welded flanges for your convenience.
  • Material:
    • Body: steel 16MO3 (EN 10028)
    • Closing flap: HB 400 HARDOX (EN10051)
    • Surface treatment: powder-coated RAL 5010
  • ATEX certification:
    • Conformity according to : EN 16447 : 2014; NFPA 69 regulations
    • Certification number : FTZU 18 ATEX 0141X ; FTZU 16 ATEX Q 002
    • ATEX norm 114 : 2014/34/EC
    • Exterior zone certification : 21-22
    • Interior zone certification : 20-21-22