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Welding/Fume Extractor Self Supporting fume arms Measurements All Diagrams Are Not To Scale   Pressure Drops Static pressure drop in WG  The graph shows the variation in pressure drop in relation to the air volume for the different Fume Extractors. Please note that the curves show the drop in pressure when the fume extractor arm is in normal working position. An air volume of at least 725 CFM is recommended for each fume extractor, for normal welding. When choosing a fan, refer to the drop in pressure at this air volume. Use as a guideline only. All Diagrams Are Not To Scale  |
