WIXLIB

21.262009 ASHRAE Handbook—Fundamentals (SI)FITTING LOSS COEFFICIENTSFittings to support Examples 6 and 7 and some of the more common fittings are reprinted here.For the complete fitting database see the ASHRAE Duct Fitting Database (ASHRAE 2009).ROUND FITTINGSCD3-1 Elbow, Die Stamped, 90 Degree, r/D 1.5D, 10.110.11CD3-3 Elbow, Die Stamped, 45 Degree, r/D 1.5D, 70.070.07CD3-5 Elbow, Pleated, 90 Degree, r/D 1.5D, .25CD3-7 Elbow, Pleated, 45 Degree, r/D 1.5D, .15-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

Duct Design21.27CD3-9 Elbow, 5 Gore, 90 Degree, r /D 1.5D, .180.160.150.140.130.120.120.12CD3-10 Elbow, 7 Gore, 90 Degree, r/D 2.5D, 060.050.03CD3-12 Elbow, 3 Gore, 90 Degree, r/D 0.75 to 2.0r/D0.751.001.502.00Co0.540.420.340.33-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---CD3-13 Elbow, 3 Gore, 60 Degree, r/D 1.5D, .140.120.120.110.100.090.090.09CD3-14 Elbow, 3 Gore, 45 Degree, r/D 1.5D, .110.110.090.080.080.070.070.07Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

21.282009 ASHRAE Handbook—Fundamentals (SI)CD3-17 Elbow, Mitered, 45 DegreeD, 0.710.700.690.680.680.67CD6-1 Screen (Only)Co ValuesnA1 /Ao 0.300.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.90 1.000.2 155.00 102.50 75.00 55.00 41.25 31.50 24.25 18.75 14.50 11.00 8.00 3.50 0.00.3 68.89 45.56 33.33 24.44 18.33 14.00 10.78 8.33 6.44 4.89 3.56 1.56 0.00.4 38.75 25.63 18.75 13.75 10.31 7.88 6.06 4.69 3.63 2.75 2.00 0.88 0.00.5 24.80 16.40 12.00 8.80 6.60 5.04 3.88 3.00 2.32 1.76 1.28 0.56 0.00.6 17.22 11.39 8.33 6.11 4.58 3.50 2.69 2.08 1.61 1.22 0.89 0.39 0.00.7 12.65 8.37 6.12 4.49 3.37 2.57 1.98 1.53 1.18 0.90 0.65 0.29 0.00.89.69 6.40 4.69 3.44 2.58 1.97 1.52 1.17 0.91 0.69 0.50 0.22 0.00.97.65 5.06 3.70 2.72 2.04 1.56 1.20 0.93 0.72 0.54 0.40 0.17 0.01.06.20 4.10 3.00 2.20 1.65 1.26 0.97 0.75 0.58 0.44 0.32 0.14 0.01.24.31 2.85 2.08 1.53 1.15 0.88 0.67 0.52 0.40 0.31 0.22 0.10 0.01.43.16 2.09 1.53 1.12 0.84 0.64 0.49 0.38 0.30 0.22 0.16 0.07 0.01.62.42 1.60 1.17 0.86 0.64 0.49 0.38 0.29 0.23 0.17 0.13 0.05 0.01.81.91 1.27 0.93 0.68 0.51 0.39 0.30 0.23 0.18 0.14 0.10 0.04 0.02.01.55 1.03 0.75 0.55 0.41 0.32 0.24 0.19 0.15 0.11 0.08 0.04 0.02.50.99 0.66 0.48 0.35 0.26 0.20 0.16 0.12 0.09 0.07 0.05 0.02 0.03.00.69 0.46 0.33 0.24 0.18 0.14 0.11 0.08 0.06 0.05 0.04 0.02 0.04.00.39 0.26 0.19 0.14 0.10 0.08 0.06 0.05 0.04 0.03 0.02 0.01 0.06.00.17 0.11 0.08 0.06 0.05 0.04 0.03 0.02 0.02 0.01 0.01 0.00 0.0CD9-1 Damper, 24672154009999D------ 0.98DoCD9-3 Fire Damper, Curtain Type, Type C, Horizontal DuctCo 0.12-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

Duct Design21.29ED1-1 Duct Mounted in WallCo Valuest /D0.00.0020.010.05L 01.000.720.500.501.000.720.500.50ED1-3 Bellmouth, with Wallr /D0.00.01 0.02 0.03 0.04 0.05 0.06 0.08 0.10 0.120.16 0.20 10.0Co0.50 0.44 0.37 0.31 0.26 0.22 0.20 0.15 0.12 0.09 0.06 0.03 0.03ED2-1 Conical Diffuser, Round to Plenum, Exhaust/Return Systems-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Co ValuesL /DoA1 00.100.10A1 .25.45.65.6Optimum Angle θ, degreesCopyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

21.302009 ASHRAE Handbook—Fundamentals (SI)ED4-1 Transition, Round to Round, Exhaust/Return SystemsCo ValuesAo /A135101520θ30901201501800.063 0.00.18 0.18 0.20 0.29 0.38 0.60 0.84 0.880.880.880.880.880.100.00.20 0.18 0.20 0.27 0.38 0.59 0.76 0.800.830.840.830.830.167 0.00.18 0.17 0.18 0.25 0.33 0.48 0.66 0.770.740.730.730.720.250.00.20 0.17 0.16 0.21 0.30 0.46 0.61 0.680.640.630.620.620.500.00.15 0.13 0.11 0.13 0.19 0.32 0.33 0.330.320.310.300.301.000.00.00 0.00 0.00 0.00 0.00 0.00 0.00 0.000.000.000.000.002.000.00.30 0.26 0.21 0.19 0.19 0.19 0.23 0.270.510.730.900.954.000.01.60 1.14 0.75 0.70 0.70 0.70 0.90 1.092.784.295.636.536.000.03.89 3.02 1.73 1.58 1.58 1.58 2.12 2.666.62 10.01 13.03 15.1210.00045600.0 11.80 9.30 5.30 5.00 5.00 5.00 6.45 7.90 19.00 28.50 36.70 42.70ED4-2 Transition, Round to Rectangular, Exhaust/Return SystemsCo 0030.0 0.170.0 0.170.0 0.180.0 0.160.0 0.140.0 0.000.0 0.300.0 1.600.0 3.890.0 186.4460901201501800.88 0.95 0.95 0.94 0.930.84 0.89 0.89 0.89 0.880.78 0.79 0.79 0.79 0.790.62 0.64 0.64 0.64 0.640.33 0.33 0.32 0.31 0.300.00 0.00 0.00 0.00 0.000.27 0.52 0.75 0.91 0.951.09 2.78 4.30 5.65 6.552.67 6.67 10.07 13.09 15.187.94 19.06 28.55 36.75 42.75-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Ao /A1ED5-1 Wye, 30 Degree, ConvergingCb ValuesQb /QcAs /AcAb –909.01–1151.–1420.Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from 1.051.261.51Licensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

Duct Design21.31ED5-1 Wye, 30 Degree, Converging (Continued )Cb Values (Continued)Qb /QcAs 70.390.340.310.300.310.30.40.50.60.70.8-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

21.322009 ASHRAE Handbook—Fundamentals (SI)ED5-1 Wye, 30 Degree, Converging (Continued )Cb Values (Concluded)Qb /QcAs 0.370.15–0.04–0.23–0.41–0.60–0.79Cs 81.111.110.600.380.250.150.06–0.02–0.09As 70.390.400.400.410.410.410.410.410.41Qs /Qc-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

Duct Design21.33ED5-1 Wye, 30 Degree, Converging (Continued )Cs Values (Concluded)Qb /Qc-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---As /AcAb 050.060.060.060.070.07Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

21.342009 ASHRAE Handbook—Fundamentals (SI)ED5-2 Wye, 45 Degree, ConvergingCb ValuesAs /AcAb 0.91.00.10.20.30.40.50.60.70.80.91.00.20.30.40.6-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, –174.01Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from �1.12–1.57–2.07Qb 0.760.700.630.540.440.310.15Licensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

Duct Design21.35ED5-2 Wye, 45 Degree, Converging (Continued )Cb Values (Concluded )As /AcAb /Ac0.10.20.30.4Qb 0.490.270.00–0.34–0.750.80.91.0Cs Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Qs /QcAs /Ac

21.362009 ASHRAE Handbook—Fundamentals (SI)ED5-2 Wye, 45 Degree, Converging (Continued )Cs Values opyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Qs /QcAs /Ac

Duct Design21.37ED5-2 Wye, 45 Degree, Converging (Continued )Cs Values (Concluded)Qs /QcAs 0.15ED5-3 Tee, Dc or 250 mm, ConvergingCb ValuesQb /QcAs /AcAb 22.052.312.580.2-- , ,, ,, ,,,, ,, ,, ,- - ,, ,, , ,, ---Copyright ASHRAEProvided by IHS under license with ASHRAENo reproduction or networking permitted without license from IHSLicensee AECOM User Geography and Business Line/5906698001, User Irlandez, JendlNot for Resale, 10/17/2011 17:44:43 MDT

21.382009 ASHRAE Handbook—Fundamentals (SI)ED5-3 Tee, Dc or 250 mm, Converging (Continued )Cb Values 1.081.071.000.870.810.740.650.540.421.07

21.26 2009 ASHRAE Handbook—Fundamentals (SI) FITTING LOSS COEFFICIENTS Fittings to support Examples 6 and 7 and some of the more common fittings are reprinted here. For the complete fitting database see the ASHRAE Duct Fitting Database (ASHRAE 2009). ROUND FITTINGS CD3-1 Elbow, Die Stamp