General information

General information for V. Aa. Gram products containing information regarding:

  1. General data in connection with used measuring units, conversion tables, Gram surface treatment as well as galvanized products.
  2. Information regarding fans with position overview, fan test, information regarding electro motors as well as an overview over fan wheels.
  3. Data regarding W3 filter units as well as the filter technical demands and norms.
  4. Information regarding the ATEX Directive
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General data

Measurements, enamelling as well as conversion
en/products/general-information/generelle-data.html
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Fans

Positon overview, fan test, electro motors and fan wheels
en/products/general-information/fans.html
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Filter units

W3 - What does it mean? - Filter technical demands and norms
en/products/general-information/filter-units.html
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ATEX

Legal demands ATEX
en/products/general-information/atex.html