Measuring Gas Velocity with the D-FL 100 Differential Pressure Bar
Measuring Gas Velocity with the D-FL 100 Differential Pressure Bar
Measuring Gas Velocity with the D-FL 100 Differential Pressure Bar
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D−<strong>FL</strong> <strong>100</strong> Seite 30Inner diameter(mm)c-factorInner diameter(mm)c-factor300 0,6931 900 0,7749350 0,7356 <strong>100</strong>0 0,7773400 0,7442 1<strong>100</strong> 0,7793450 0,7506 1200 0,7813550 0,7592 1350 0,7816600 0,7634 1500 0,7839650 0,7658 1750 0,7857700 0,7685 2000 0,7871750 0,7703 2250 0,7873800 0,7721 2500 0,7876850 0,7736 ≥ 2800 0,78789.2. Selecting a differential pressure barThe differential pressure bar is available in two models. The model used depends on <strong>the</strong> inner diameterof <strong>the</strong> duct/stack. <strong>Bar</strong>s of smaller diameter are recommended for stacks of smaller diameter. Thefollowing table shows <strong>the</strong> suitability ranges of <strong>the</strong> two differential pressure bars:<strong>Bar</strong> typeD-<strong>FL</strong><strong>100</strong>-ID-<strong>FL</strong><strong>100</strong>-IID-<strong>FL</strong><strong>100</strong>-llIInner diameter400-2000 mm(15 3/4 in. - 78 3/4 in.)2000-4000 mm(78 ¾.-.157 1/2 in.)>4000 mm(>157 1/2 in.)GmbH
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