CD3-1 CD3-1 Elbow, Die Stamped, 90 Degree, r/D = 1.5 (UMC 1985, Report SRF785; Idelchik 1986, Diagram 6-1)Theta == 90r/D == 1.53.0 <= D && D <= 10.0 CD3-10 CD3-10 Elbow, 7 Gore, 90 Degree, r/D = 2.5 (UMC 1985, Report SRF1285)Theta == 90r/D == 2.53.0 <= D && D <= 60.0 CD3-11 CD3-11 Elbow, Flat-back, 90 Degree (UMC 1985, Report SRF1285)Theta == 903.0 <= D && D <= 48.0 CD3-12 CD3-12 Elbow, 3 Gore, 90 Degree, r/D=0.75 to 2.0 (Locklin 1950, Fig. 10)Theta == 900.8 <= r/D && r/D <= 2.0 CD3-13 CD3-13 Elbow, 3 Gore, 60 Degree, r/D = 1.5 (UMC 1985, Report SRF1285; Idelchik 1986, Diagram 6-1)Theta == 60r/D == 1.53.0 <= D && D <= 60.0 CD3-14 CD3-14 Elbow, 3 Gore, 45 Degree, r/D = 1.5 (UMC 1985, Report SRF1285; Idelchik 1986, Diagram 6-1)Theta == 45r/D == 1.53.0 <= D && D <= 60.0 CD3-15 CD3-15 Elbow, Mitered, 90 Degree (UMC 1985, Report SRF1285; Idelchik 1986, Diagram 6-1)Theta == 903.0 <= D && D <= 60.0 CD3-16 CD3-16 Elbow, Mitered, 60 Degree (Idelchik 1986, Diagram 6-5)Theta == 603.0 <= D && D <= 60.0 CD3-17 CD3-17 Elbow, Mitered, 45 Degree (Idelchik 1986, Diagram 6-5)Theta == 453.0 <= D && D <= 60.0 CD3-18 CD3-18 Elbow, Mitered, 30 Degree (UMC 1985, Report SRF1285; Idelchik 1986, Diagram 6-1)Theta == 303.0 <= D && D <= 60.0 CD3-19 CD3-19 Elbow, Mitered, 22.5 Degree (UMC 1985, Report SRF1285; Idelchik 1986, Diagram 6-1)Theta == 233.0 <= D && D <= 60.0 CD3-2 CD3-2 Elbow, Die Stamped, 90 Degree, r/D = 1.0 (UMC 1985, Report SRF785; Idelchik 1986, Diagram 6-1)Theta == 90r/D == 1.03.0 <= D && D <= 10.0 CD3-20 CD3-20 Elbow, Mitered with Vanes, 90 Degree (UMC 1985, Report SRF1285)Theta == 903.0 <= D && D <= 60.0 CD3-21 CD3-21 Elbow, 5 Gore, 90 Degree, r/D = 1.0 (UMC 1985, Report SRF1285; Brooks 1993)Theta == 90r/D == 1.03.0 <= D && D <= 60.0 CD3-3 CD3-3 Elbow, Die Stamped, 45 Degree, r/D = 1.5 (UMC 1985, Report SRF785; Idelchik 1986, Diagram 6-1)Theta == 45r/D == 1.50.0 <= D && D <= 10.0 CD3-4 CD3-4 Elbow, Die Stamped, 45 Degree, r/D = 1.0 (UMC 1985, Report SRF785; Idelchik 1986, Diagram 6-1)Theta == 45r/D == 1.03.0 <= D && D <= 10.0 CD3-5 CD3-5 Elbow, Pleated, 90 Degree, r/D = 1.5 (UMC 1989, Report SRS189)Theta == 90r/D == 1.54.0 <= D && D <= 16.0 CD3-6 CD3-6 Elbow, Pleated, 60 Degree, r/D = 1.5 (UMC 1989, Report SRS189)Theta == 60r/D == 1.54.0 <= D && D <= 16.0 CD3-7 CD3-7 Elbow, Pleated, 45 Degree, r/D = 1.5 (UMC 1989, Report SRS189)Theta == 45r/D == 1.54.0 <= D && D <= 16.0 CD3-8 CD3-8 Elbow, Pleated, 30 Degree, r/D = 1.5 (UMC 1989, Report SRS189)Theta == 30r/D == 1.54.0 <= D && D <= 16.0 CD3-9 CD3-9 Elbow, 5 Gore, 90 Degree, r/D = 1.5 (UMC 1985, Report SRF1285; Brooks 1993)Theta == 90r/D == 1.53.0 <= D && D <= 60.0 CD6-1 CD6-1 Screen (Only) (Idelchik 1986, Diagrams 8-6 and 3-15)0.3 <= n && n <= 1.00.2 <= A1/Ao && A1/Ao <= 6.0 CD6-2 CD6-2 Perforated Plate, Thick (Idelchik 1986, Diagram 8-3)0.2 <= n && n <= 1.00.0 <= t/d && t/d <= 10.0 CD6-3 CD6-3 Obstruction, Smooth Cylinder in Round Duct (Idelchik 1986, Diagram 10-1)0.0 <= Sm/Ao && Sm/Ao <= 0.2100.0 <= Re && Re <= 1000000.00.0 <= y/D && y/D <= 0.4 CD6-4 CD6-4 Round Duct, Depressed to Avoid an Obstruction (SMACNA 1990) CD8-1 CD8-1 Silencer, Ducted, Double Wall with Bullet, Standard Pressure Drop CD8-2 CD8-2 Silencer, Ducted, Double Wall with Bullet and Tail Cone, Standard Pressure Drop CD8-3 CD8-3 Silencer, Ducted, Double Wall with Bullet, Low Pressure Drop CD8-4 CD8-4 Silencer, Ducted, Double Wall with Bullet and Tail Cone, Low Pressure Drop CD8-5 CD8-5 Silencer, Ducted, Single Wall with Bullet, Standard Pressure Drop CD8-6 CD8-6 Silencer, Ducted, Single Wall with Bullet and Tail Cone, CD8-7 CD8-7 Silencer, Ducted, Single Wall with Bullet, Low Pressure Drop CD8-8 CD8-8 Silencer, Ducted, Single Wall with Bullet and Tail Cone, Low Pressure Drop CD9-1 CD9-1 Damper, Butterfly (Idelchik 1986, Diagram 9-16; Zolotov 1967)0.0 <= Theta && Theta <= 90.00.5 <= D/Do && D/Do <= 1.0 CD9-2 CD9-2 Damper, Gate (Idelchik 1986, Diagram 9-5)0.0 <= h/D && h/D <= 1.0 CD9-2 Damper, Gate (Idelchik 1986, Diagram 9-5)0.0 <= h/D && h/D <= 1.0 CD9-3 CD9-3 Fire Damper, Curtain Type, Type C CF3-1CF3-1 Elbow, Flat Oval, Hard Bend, 5 Gore, 90 Degree (B.S. Townsend et al. 1994 andTheta == 900.1 <= a/A && a/A <= 1.01.0 <= r/Dh && r/Dh <= 9.0 CR3-1 CR3-1 Elbow, Smooth Radius, without Vanes (Idelchik 1986, Diagram 6-1)0.3 <= H/W && H/W <= 8.00.5 <= r/W && r/W <= 2.0 CR3-1 Elbow, Smooth Radius, without Vanes (Idelchik 1986, Diagram 6-1)0.0 <= Theta && Theta <= 180.0 CR3-10 CR3-10 Elbow, Mitered, 90 Degree, Single-Thickness Vanes (Design 2), (Rozell 1974)Theta == 90 CR3-11 CR3-11 Elbow, Mitered, 90 Degree, Single-Thickness Vanes (Design 3), (Rozell 1974)Theta == 90 CR3-12 CR3-12 Elbow, Mitered, 90 Degree, Single-Thickness Vanes (Design 4), (Brooks 1990)Theta == 90 CR3-13 CR3-13 Elbow, Mitered, 90 Degree, Single-Thickness Vanes (Design 5), (Rozell 1976)Theta == 90 CR3-14 CR3-14 Elbow, Mitered, 90 Degree, Double-Thickness Vanes (Design 1), (Brooks 1990)Theta == 90 CR3-15 CR3-15 Elbow, Mitered, 90 Degree, Double-Thickness Vanes (Design 2), (Rozell 1974)Theta == 90 CR3-16 CR3-16 Elbow, Mitered, 90 Degree, Double-Thickness Vanes (Design 3), (Brooks 1990)Theta == 90 CR3-17 CR3-17 Elbow, Z Shaped (Idelchik 1986, Diagram 6-11)0.0 <= L/W && L/W <= 100.00.3 <= H/W && H/W <= 8.0 CR3-17 Elbow, Z Shaped (Idelchik 1986, Diagram 6-11)10000.0 <= Re && Re <= 500000.0 CR3-18 CR3-18 Elbow, Combined 90 Degree Elbows Lying in Different Planes (Idelchik 1986, Diagram 6-11)Theta == 900.0 <= L/W && L/W <= 100.00.3 <= H/W && H/W <= 8.0 CR3-18 Elbow, Combined 90 Degree Elbows Lying in Different Planes (Idelchik 1986, Diagram 6-11)Theta == 9010000.0 <= Re && Re <= 500000.0 CR3-19 CR3-19 Elbows, Four 45 Degree Smooth Radius Elbows Theta == 45 CR3-2 CR3-2 Elbow, Sharp Throat (r/W=0.5), Radius Heel, 90 Degree (Idelchik 1986, Diagram 6-1)Theta == 900.3 <= H/W && H/W <= 8.0 CR3-3 CR3-3 Elbow, Smooth Radius, One Splitter Vane (Locklin 1950; Madison & Parker 1936)0.3 <= H/W && H/W <= 8.00.6 <= r/W && r/W <= 1.0 CR3-3 Elbow, Smooth Radius, One Splitter Vane (Locklin 1950; Madison & Parker 1936)0.0 <= Theta && Theta <= 90.0 CR3-3 Elbow, Smooth Radius, One Splitter Vane (Locklin 1950; Madison & Parker 1936)0.6 <= r/W && r/W <= 1.0 CR3-3 Elbow, Smooth Radius, One Splitter Vane (Locklin 1950; Madison & Parker 1936)0.6 <= r/W && r/W <= 1.0 CR3-4CR3-4 Elbow, Smooth Radius, Two Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.3 <= H/W && H/W <= 8.00.6 <= r/W && r/W <= 1.0CR3-4 Elbow, Smooth Radius, Two Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.0 <= Theta && Theta <= 90.0CR3-4 Elbow, Smooth Radius, Two Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.6 <= r/W && r/W <= 1.0CR3-4 Elbow, Smooth Radius, Two Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.6 <= r/W && r/W <= 1.0 CR3-5 CR3-5 Elbow, Smooth Radius, Three Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.3 <= H/W && H/W <= 8.00.6 <= r/W && r/W <= 1.0 CR3-5 Elbow, Smooth Radius, Three Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.0 <= Theta && Theta <= 90.0 CR3-5 Elbow, Smooth Radius, Three Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.6 <= r/W && r/W <= 1.0 CR3-5 Elbow, Smooth Radius, Three Splitter Vanes (Locklin 1950; Madison & Parker 1936)0.6 <= r/W && r/W <= 1.0 CR3-6 CR3-6 Elbow, Mitered (Idelchik 1986, Diagram 6-5)0.3 <= H/W && H/W <= 8.020.0 <= Theta && Theta <= 90.0 CR3-7 CR3-7 Elbow, Rounded Throat, Sharp Heel, 90 Degree (Idelchik 1986, Diagram 6-8)Theta == 900.3 <= H/W && H/W <= 8.00.1 <= r/W && r/W <= 1.0 CR3-8 CR3-8 Elbow, Beveled Throat, Sharp Heel, 90 Degree (Idelchik 1986, Diagram 6-8)Theta == 900.3 <= H/W && H/W <= 8.00.1 <= L/W && L/W <= 0.5 CR3-9 CR3-9 Elbow, Mitered, 90 Degree, Single-Thickness Vanes (Design 1), (Brooks 1990)Theta == 90 CR6-1 CR6-1 Screen (Only) (Idelchik 1986, Diagrams 8-6 and 3-15)0.3 <= n && n <= 1.00.2 <= A1/Ao && A1/Ao <= 6.0 CR6-2 CR6-2 Perforated Plate, Thick (Idelchik 1986, Diagram 8-3)0.2 <= n && n <= 1.00.0 <= t/d && t/d <= 10.0 CR6-3 CR6-3 Orifice, Thick-Edged (Idelchik 1986, Diagram 4-15)0.0 <= A1/Ao && A1/Ao <= 1.00.0 <= L/Dh && L/Dh <= 5.0 CR6-4 CR6-4 Obstruction, Smooth Cylinder in Rectangular Duct (Idelchik 1986, Diagram 10-1)0.0 <= Sm/Ao && Sm/Ao <= 0.2100.0 <= Re && Re <= 1000000.00.0 <= y/H && y/H <= 0.4 CR6-5 CR6-5 Rectangular Duct, Depressed to Avoid an Obstruction (SMACNA 1990)0.1 <= L/H && L/H <= 0.31.0 <= W/H && W/H <= 4.0 CR8-1 CR8-1 Silencer, Ducted, Standard Pressure Drop36.0 <= L && L <= 120.0 CR8-10 CR8-10 Terminal Control Unit, Basic Assembly, One-Row Coil with Attenuator CR8-11 CR8-11 Terminal Control Unit, Basic Assembly, Two-Row Coil and Attenuator CR8-2 CR8-2 Silencer, Ducted, Medium Pressure Drop36.0 <= L && L <= 120.0 CR8-3 CR8-3 Silencer, Ducted, Medium-Low Pressure Drop36.0 <= L && L <= 120.0 CR8-4 CR8-4 Silencer, Ducted, Low Pressure Drop36.0 <= L && L <= 120.0 CR8-5 CR8-5 Coil, Electric, Open Coil CR8-6 CR8-6 Coil, Electric, Finned Tubular CR8-7 CR8-7 Coil, Hot Water, One Row CR8-8 CR8-8 Coil, Hot Water, Two Row CR8-9 CR8-9 Terminal Control Unit, Basic Assembly and Attenuator CR9-1 CR9-1 Damper, Butterfly (Idelchik 1986, Diagram 9-17; Zolotov 1967)0.0 <= Theta && Theta <= 90.00.1 <= H/W && H/W <= 2.0 CR9-2 CR9-2 Damper, Gate (Idelchik 1986, Diagram 9-5)0.1 <= h/H && h/H <= 1.00.5 <= H/W && H/W <= 2.0 CR9-3 CR9-3 Damper, Parallel Blades (Brown 1957)0.0 <= Theta && Theta <= 80.00.3 <= L/R && L/R <= 1.5 CR9-4 CR9-4 Damper, Opposed Blades (Brown 1957)0.0 <= Theta && Theta <= 80.00.3 <= L/R && L/R <= 1.5 CR9-5 CR9-5 Fire Damper, Curtain Type, Type A CR9-6 CR9-6 Fire Damper, Curtain Type, Type B CR9-7 CR9-7 Fire Damper, Curtain Type, Type C ED1-1 ED1-1 Duct Mounted in Wall (Idelchik 1986, Diagram 3-1)0.0 <= L/D && L/D <= 10.00.0 <= t/D && t/D <= 10.0 ED1-2 ED1-2 Bellmouth (Idelchik 1986, Diagram 3-4)0.0 <= r/D && r/D <= 10.0 ED1-3 ED1-3 Bellmouth, with Wall (Idelchik 1986, Diagram 3-4)0.0 <= r/D && r/D <= 10.0 ED1-4 ED1-4 Conical Bellmouth/Sudden Contraction (Idelchik 1986, Diagram 3-6)0.0 <= Theta && Theta <= 180.00.0 <= L/D && L/D <= 1.0 ED1-5 ED1-5 Conical Bellmouth/Sudden Contraction, with Wall (Idelchik 1986, Diagram 3-7)0.0 <= Theta && Theta <= 180.00.0 <= L/D && L/D <= 0.6 ED1-6 ED1-6 Intake Hood (Idelchik 1986, Diagram 3-18)0.1 <= L/D && L/D <= 4.00.0 <= Theta && Theta <= 15.0 ED1-7 ED1-7 Orifice, Sharp-Edged (Brooks 1993)0.4 <= Dor/D && Dor/D <= 1.0 ED10-1 ED10-1 Hood, Conical, Round Duct (Brandt 1946)0.0 <= Theta && Theta <= 180.0 ED10-2 ED10-2 Hood, Rectangular-Shaped, Tapered, Round Duct (Brandt 1946)0.0 <= Theta && Theta <= 180.0 ED2-1 ED2-1 Conical Diffuser, Round to Plenum, Exhaust/Return Systems (Idelchik 1986, Diagram 5-8)0.5 <= L/Do && L/Do <= 14.01.5 <= A1/Ao && A1/Ao <= 20.0 ED2-1 Conical Diffuser, Round to Plenum, Exhaust/Return Systems (Idelchik 1986, Diagram 5-8)0.5 <= L/Do && L/Do <= 14.01.5 <= A1/Ao && A1/Ao <= 20.0 ED4-1 ED4-1 Transition, Round to Round, Exhaust/Return Systems (Idelchik 1986, Diagram 5-2 & 5-22)S0 == S110.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 10.0 ED4-2 ED4-2 Transition, Round to Rectangular, Exhaust/Return Systems (Idelchik 1986, Diagram 5-27)S0 == Round10.0 <= Angle && Angle <= 180.00.1 <= Ao/A1 && Ao/A1 <= 10.0 ED5-1 ED5-1 Wye, 30 Degree, Converging (Sepsy 1973) Theta == 30 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-1 Wye, 30 Degree, Converging (Sepsy 1973) Theta == 30 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-10 ED5-10 Double Wye, 45 Degree, Ab1 = Ab2, As = Ac, Converging (Idelchik 1986, Diagram 7-27) Theta == 45 P == 3 Ab1 == Ab2 As == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.6 0.5 <= Qb2/Qb1 && Qb2/Qb1 <= 2.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-10 Double Wye, 45 Degree, Ab1 = Ab2, As = Ac, Converging (Idelchik 1986, Diagram 7-27) Theta == 45 P == 3 Ab1 == Ab2 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 0.5 <= Qb2/Qb1 && Qb2/Qb1 <= 2.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-11 ED5-11 Cross, Ab1 = Ab2, As = Ac, Converging (Idelchik 1986, Diagram 7-29) P == 2 Theta == 90 Ab1 == Ab2 As == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.6 0.5 <= Qb2/Qb1 && Qb2/Qb1 <= 2.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-11 Cross, Ab1 = Ab2, As = Ac, Converging (Idelchik 1986, Diagram 7-29) P == 2 Theta == 90 Ab1 == Ab2 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 ED5-2 ED5-2 Wye, 45 Degree, Converging (Sepsy 1973) Theta == 45 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-2 Wye, 45 Degree, Converging (Sepsy 1973) Theta == 45 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-3 ED5-3 Tee, Dc < or = 10 inches (250 mm), Converging (Sepsy 1973) P == 1 Theta == 90 Dc <= 10 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-3 Tee, Dc < or = 10 inches (250 mm), Converging (Sepsy 1973) P == 1 Theta == 90 Dc <= 10 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-3 Tee, Dc > 10 inches (250 mm), Converging (Sepsy 1973) P == 1 Theta == 90 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-3 Tee, Dc > or = 10 inches (250 mm), Converging (Sepsy 1973) P == 1 Theta == 90 Dc >= 10 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.2 <= Ab/Ac && Ab/Ac <= 1.0 0.2 <= As/Ac && As/Ac <= 1.0 ED5-4 ED5-4 Bullhead Tee without Vanes, Db1 > or = Db2, Converging (UMC 1985, Report SRF785E) P == 2 Theta == 180 Db1 >= Db2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.2 <= Ab2/Ac && Ab2/Ac <= 1.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-4 Bullhead Tee without Vanes, Db1 > or = Db2, Converging (UMC 1985, Report SRF785E) P == 2 Theta == 180 Db1 >= Db2 0.1 <= Qb2/Qc && Qb2/Qc <= 0.9 0.2 <= Ab2/Ac && Ab2/Ac <= 1.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-5 ED5-5 Bullhead Tee with Vanes, Db1 > or = Db2, Converging (UMC 1985, Report SRF785E) P == 2 Theta == 180 Db1 >= Db2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.2 <= Ab2/Ac && Ab2/Ac <= 1.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-5 Bullhead Tee with Vanes, Db1 > or = Db2, Converging (UMC 1985, Report SRF785E) P == 2 Theta == 180 Db1 >= Db2 0.1 <= Qb2/Qc && Qb2/Qc <= 0.9 0.2 <= Ab2/Ac && Ab2/Ac <= 1.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-6 ED5-6 Capped Wye, Branch with 45 Degree Elbow, Branch 90 Degrees to Main, Theta == 45 P == 2 0.1 <= Ab/Ac && Ab/Ac <= 1.0 ED5-7 ED5-7 Capped Tee, Converging (UMC 1983, Report SRN1083) Theta == 90 P == 1 0.1 <= Ab/Ac && Ab/Ac <= 1.0 ED5-8 ED5-8 Heel-Tapped Elbow, 90 Degree, r/Dc = 1.5, Converging (UMC 1985, Report SRF785E)Theta == 90r/Dc == 1.50.1 <= Qb/Qc && Qb/Qc <= 0.90.2 <= Ab/Ac && Ab/Ac <= 1.00.2 <= As/Ac && As/Ac <= 1.0 ED5-8 Heel-Tapped Elbow, 90 Degree, r/Dc = 1.5, Converging (UMC 1985, Report SRF785E)Theta == 90r/Dc == 1.50.1 <= Qs/Qc && Qs/Qc <= 0.90.2 <= Ab/Ac && Ab/Ac <= 1.00.2 <= As/Ac && As/Ac <= 1.0 ED5-9 ED5-9 Symmetrical Wye, 60 Degree, Db1 > or = Db2, Converging (UMC 1985, Report SRF785E) Theta == 60 P == 2 Db1 >= Db2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.2 <= Ab2/Ac && Ab2/Ac <= 1.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED5-9 Symmetrical Wye, 60 Degree, Db1 > or = Db2, Converging (UMC 1985, Report SRF785E) Theta == 60 P == 2 Db1 >= Db2 0.1 <= Qb2/Qc && Qb2/Qc <= 0.9 0.2 <= Ab2/Ac && Ab2/Ac <= 1.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ED7-1 ED7-1 Centrifugal Fan Located in Plenum or Cabinet (AMCA 1990, Fig. 9-11)0.3 <= L/Do && L/Do <= 0.8 ED7-2 ED7-2 Fan Inlet, Centrifugal, SWSI, with 4-Gore Elbow (AMCA 1990, Fig. 9-5)0.0 <= L/Do && L/Do <= 10.00.5 <= r/Do && r/Do <= 3.0 ED7-3 ED7-3 Fan Inlet, Centrifugal, SWSI, with 3-Gore Elbow (AMCA 1990, Fig. 9-5)0.0 <= L/Do && L/Do <= 10.00.5 <= r/Do && r/Do <= 3.0 ED7-4 ED7-4 Fan Inlet, Centrifugal, SWSI, with Mitered Elbow (AMCA 1990, Fig. 9-5)0.0 <= L/Do && L/Do <= 10.0 ED7-5 ED7-5 Fan Inlet, Tubeaxial, 0.25 Hub-Tip Ratio, with 4-Gore Elbow (AMCA 1990, Fig. 9-2)0.0 <= L/Do && L/Do <= 100.0 ED7-6 ED7-6 Fan Inlet, Tubeaxial, 0.25 Hub-Tip Ratio, with Mitered Elbow (AMCA 1990, Fig. 9-2)0.0 <= L/Do && L/Do <= 100.0 ED7-7 ED7-7 Fan Inlet, Tubeaxial, 0.35 Hub-Tip Ratio, with Mitered Elbow (AMCA 1990, Fig. 9-2)0.0 <= L/Do && L/Do <= 100.0 ED7-8 ED7-8 Fan Inlet, Vaneaxial, 0.61 Hub-Tip Ratio, with 4-Gore Elbow (AMCA 1990, Fig. 9-2)0.0 <= L/Do && L/Do <= 100.0 ED7-9 ED7-9 Fan Inlet, Vaneaxial, 0.61 Hub-Tip Ratio, with Mitered Elbow (AMCA 1990, Fig. 9-2)0.0 <= L/Do && L/Do <= 3.0 ER1-1ER1-1 Duct Mounted in Wall (Idelchik 1986, Diagram 3-1)0.0 <= L/Dh && L/Dh <= 10.00.0 <= t/Dh && t/Dh <= 10.0 ER1-2ER1-2 Conical Bellmouth/Sudden Contraction (Idelchik 1986, Diagram 3-7)0.0 <= Theta && Theta <= 180.00.0 <= L/Dh && L/Dh <= 1.0 ER1-3 ER1-3 Conical Bellmouth/Sudden Contraction, with Wall (Idelchik 1986, Diagram 3-7)0.0 <= Theta && Theta <= 180.00.0 <= L/Dh && L/Dh <= 0.6 ER2-1 ER2-1 Bellmouth, Plenum to Round, Exhaust/Return Systems (Idelchik 1986, Diagram 4-9)0.0 <= r/D1 && r/D1 <= 10.01.5 <= Ao/A1 && Ao/A1 <= 8.0 ER2-2ER2-2 Conical Bellmouth/Sudden Contraction, Plenum to Round, Exhaust/Return Systems0.0 <= Theta && Theta <= 180.00.0 <= L/D1 && L/D1 <= 0.61.1 <= Ao/A1 && Ao/A1 <= 10.0 ER2-3ER2-3 Plain Diffuser (Two Sides Parallel), Rectangular to Plenum, Exhaust/Return Systems0.0 <= A1/Ao && A1/Ao <= 0.02.0 <= 1.5 && 1.5 <= 20.0ER2-3 Plain Diffuser (Two Sides Parallel), Rectangular to Plenum, Exhaust/Return Systems0.5 <= L/Ho && L/Ho <= 14.01.5 <= A1/Ao && A1/Ao <= 20.0 ER2-4 ER2-4 Pyramidal Diffuser, Rectangular to Plenum, Exhaust/Return Systems (Idelchik 1986, Diagram 5-9)0.5 <= L/Dh && L/Dh <= 14.01.5 <= A1/Ao && A1/Ao <= 20.0 ER2-4 Pyramidal Diffuser, Rectangular to Plenum, Exhaust/Return Systems (Idelchik 1986, Diagram 5-9)0.5 <= L/Dh && L/Dh <= 14.01.5 <= A1/Ao && A1/Ao <= 20.0 ER3-1ER3-1 Elbow, 90 Degree, Variable Inlet/Outlet Areas, Exhaust/Return SystemsTheta == 900.0 <= H/Wo && H/Wo <= 0.01.0 <= 0.25 && 0.25 <= 100.0 ER4-1 ER4-1 Transition, Rectangular, Two Sides Parallel, Symmetrical, Exhaust/Return Systems (Idelchik 1986, Diagram 5-5)S0 == S110.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 10.0 ER4-2 ER4-2 Transition, Pyramidal, Exhaust/Return Systems (Idelchik 1986, Diagram 5-4)S0 == S110.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 10.0 ER4-3 ER4-3 Transition, Rectangular to Round, Exhaust/Return Systems (Idelchik 1986, Diagram 5-27)S0 == Rectangular10.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 10.0 ER5-1 ER5-1 Smooth Radius Wye of the Type As + Ab > or = Ac, Branch 90 Degrees to Main, Converging (Idelchik 1986, Diagram 7-11) Theta == 90 P == 2As+Ab >= Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.3 <= Ab/Ac && Ab/Ac <= 1.0 0.5 <= As/Ac && As/Ac <= 1.0 ER5-1 Smooth Radius Wye of the Type As + Ab > or = Ac, Branch 90 Degrees to Main, Converging (Idelchik 1986, Diagram 7-11) Theta == 90 P == 2 As+Ab >= Ac 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.3 <= Ab/Ac && Ab/Ac <= 1.0 0.5 <= As/Ac && As/Ac <= 1.0 ER5-10 ER5-10 Cross of the Type As = Ac, Ab1 = Ab2, Converging (Idelchik 1986, Diagram 7-29) P == 2 Theta == 90 As == Ac Ab1 == Ab2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.6 0.5 <= Qb2/Qb1 && Qb2/Qb1 <= 2.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ER5-10 Cross of the Type As = Ac, Ab1 = Ab2, Converging (Idelchik 1986, Diagram 7-29) P == 2 Theta == 90 As == Ac Ab1 == Ab2 0.0 <= Qs/Qc && Qs/Qc <= 1.0 ER5-2 ER5-2 Tee, Round Tap to Rectangular Main, Converging (SMACNA 1990) P == 1 Theta == 90 0.0 <= Qb/Qc && Qb/Qc <= 1.0 ER5-2 Tee, Round Tab to Rectangular Main, Converging (SEPSY 1973) P == 1 Theta == 90 0.0 <= Qs/Qc && Qs/Qc <= 1.0 ER5-3 ER5-3 Tee, 45 Degree Entry Branch, Converging (SMACNA 1990) Theta == 90 P == 1 0.0 <= Qb/Qc && Qb/Qc <= 1.0 ER5-3 Tee, 45 Degree Entry Branch, Converging (SEPSY 1973) Theta == 90 P == 1 0.0 <= Qs/Qc && Qs/Qc <= 1.0 ER5-4 ER5-4 Wye, Symmetrical, Dovetail, Qb/Qc = 0.5, Converging P == 2 Theta == 180 Qb/Qc == 0.5 0.5 <= Ab/Ac && Ab/Ac <= 1.0 ER5-5 ER5-5 Bullhead Tee without Vanes, Converging (Idelchik 1986, Diagram 7-23) P == 2 Theta == 180 0.1 <= Qb1/Qc && Qb1/Qc <= 1.0 0.3 <= Ab1/Ac && Ab1/Ac <= 1.0 ER5-6 ER5-6 Symmetrical Wye of the Type Ab1 + Ab2 = Ac, Ab1 = Ab2, 30 Degree, Converging Theta == 30 P == 2 Ab1+Ab2 == Ac Ab1 == Ab2 0.0 <= Qb1/Qc && Qb1/Qc <= 1.0 ER5-7 ER5-7 Symmetrical Wye of the Type Ab1 + Ab2 = Ac, Ab1 = Ab2, 60 Degree, Converging Theta == 60 P == 2 Ab1+Ab2 == Ac Ab1 == Ab2 0.0 <= Qb1/Qc && Qb1/Qc <= 1.0 ER5-8 ER5-8 Symmetrical Wye of the Type Ab1 + Ab2 = Ac, Ab1 = Ab2, 90 Degree, Converging Theta == 90 P == 2 Ab1+Ab2 == Ac Ab1 == Ab2 0.0 <= Qb1/Qc && Qb1/Qc <= 1.0 ER5-9 ER5-9 Double Wye of the Type As = Ac, Ab1 = Ab2, 45 Degree, Converging (Idelchik 1986, Diagram 7-27) Theta == 45 P == 3 As == Ac Ab1 == Ab2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.6 0.5 <= Qb2/Qb1 && Qb2/Qb1 <= 2.0 0.2 <= Ab1/Ac && Ab1/Ac <= 1.0 ER5-9 Double Wye of the Type As = Ac, Ab1 = Ab2, 45 Degree, Converging (Idelchik 1986, Diagram Theta == 45 P == 3 As == Ac Ab1 == Ab2 0.0 <= Ab1/Ac && Ab1/Ac <= 0.0 0.0 <= 0.2 && 0.2 <= 0.0 ER7-1 ER7-1 Fan Inlet, Centrifugal, SWSI, 90 Degree Smooth Radius Elbow (Square) (AMCA 1990, Fig. 9-6)Theta == 900.0 <= L/H && L/H <= 10.00.5 <= r/H && r/H <= 2.0 ER7-2 ER7-2 Fan Inlet, Centrifugal, SWSI, 90 Degree Smooth Radius Elbow (Square) with Full Radius Vanes (AMCA 1990, Fig. 9-6)Theta == 900.0 <= L/H && L/H <= 10.00.5 <= r/H && r/H <= 2.0 ER7-3 ER7-3 Fan Inlet, Centrifugal, SWSI, 90 Degree Smooth Radius Elbow (Square) with Short Vanes (AMCA 1990, Fig. 9-6)Theta == 900.0 <= L/H && L/H <= 10.00.5 <= r/H && r/H <= 2.0 SD1-1 SD1-1 Bellmouth, Plenum to Round, Supply Air Systems (Idelchik 1986, Diagram 4-9)0.0 <= r/Do && r/Do <= 10.0 SD1-2SD1-2 Conical Bellmouth/Sudden Contraction, Plenum to Round,0.0 <= Ao/A1 && Ao/A1 <= 0.00.0 <= 0.10 && 0.10 <= 0.0 SD2-1 SD2-1 Abrupt Exit (Idelchik 1986, Diagram 11-1) SD2-2 SD2-2 Discharge From Duct Flush with Wall (Idelchik 1986, Diagram 11-2)0.0 <= V/Vo && V/Vo <= 2.030.0 <= Theta && Theta <= 150.0 SD2-3 SD2-3 Conical Diffuser, Free Discharge (Idelchik 1986, Diagram 11-3)10.0 <= Theta && Theta <= 90.01.0 <= A1/Ao && A1/Ao <= 16.0 SD2-4 SD2-4 Conical Diffuser, with Wall (Idelchik 1986, Diagram 5-8)0.5 <= L/D && L/D <= 14.0 SD2-4 Conical Diffuser, with Wall (Idelchik 1986, Diagram 5-8)0.5 <= L/D && L/D <= 14.0 SD2-5 SD2-5 Exhaust Hood (Idelchik 1986, Diagram 11-16)0.1 <= L/D && L/D <= 1.0 SD2-6 SD2-6 Stackhead (Idelchik 1986, Diagram 11-23)0.3 <= De/D && De/D <= 1.0 SD4-1 SD4-1 Transition, Round to Round, Supply Air Systems (Idelchik 1986, Diagrams 5-2 & 5-22)S0 == S110.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 16.0 SD4-2 SD4-2 Transition, Rectangular to Round, Supply Air Systems (Idelchik 1986, Diagram 5-27)S0 == Rectangular10.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 16.0 SD5-1 SD5-1 Wye, 45 Degree, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-1 Wye, 45 Degree, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-10 SD5-10 Tee, Conical Branch Tapered into Body, Diverging (UMC 1986, Report SRF386) P == 1 Theta == 90 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-10 Tee, Conical Branch Tapered into Body, Diverging (UMC 1986, Report SRF386) P == 1 Theta == 90 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-11 SD5-11 Tee, Conical Branch, Diverging (Jones 1969, Fig. 12) P == 1 Theta == 90 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-11 Tee, Conical Branch, Diverging (UMC 1986, Report SRF386) P == 1 Theta == 90 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-12 SD5-12 Tee, 45 Degree Entry Branch, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 1 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-12 Tee, 45 Degree Entry Branch, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 1 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-13 SD5-13 Tee, Branch with 45 Degree Elbow, Branch 90 Degrees to Main, Diverging (Jones 1969, Fig. 18) Theta == 90 P == 1 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-13 Tee, Branch with 45 Degree Elbow, Branch 90 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 1 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-14 SD5-14 Tee, Conical Branch with 45 Degree Elbow, Branch 90 Degrees to Main, Diverging (Jones 1969, Fig. 19) Theta == 90 P == 1 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-14 Tee, Conical Branch with 45 Degree Elbow, Branch 90 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 1 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-15 SD5-15 Tee, Branch with 90 Degree Elbow, Branch 90 Degrees to Main, Diverging (Jones 1969, Fig. 17) Theta == 90 P == 1 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-15 Tee, Branch with 90 Degree Elbow, Branch 90 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 1 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-16 SD5-16 Tee, Branch with 60 Degree Elbow, Branch 45 Degrees to Main, Diverging (Jones 1969, Fig. 22) Theta == 45 P == 1 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-16 Tee, Branch with 60 Degree Elbow, Branch 45 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 1 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-17 SD5-17 Tee, Conical Branch with 60 Degree Elbow, Branch 45 Degrees to Main, Diverging (Jones 1969, Fig. 23) Theta == 45 P == 1 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-17 Tee, Conical Branch with 60 Degree Elbow, Branch 45 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 1 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-18 SD5-18 Bullhead Tee without Vanes, Diverging (Sepsy 1969) P == 2 Theta == 180 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SD5-19 SD5-19 Bullhead Tee with Vanes, Diverging (Sepsy 1969) P == 2 Theta == 180 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SD5-2 SD5-2 Wye, 45 Degree, Conical Branch Tapped into Body, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-2 Wye, 45 Degree, Conical Branch Tapped into Body, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-20 SD5-20 Capped Cross, 90 Degree, Diverging (Sepsy 1969) Theta == 180 P == 2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SD5-21 SD5-21 Heel-Tapped Elbow, 90 Degree, r/Dc = 1.5, Diverging (UMC 1990)Theta == 90r/Dc == 1.50.1 <= Qb/Qc && Qb/Qc <= 0.90.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-21 Heel-Tapped Elbow, 90 Degree, r/Dc = 1.5, Diverging (UMC 1990)Theta == 90r/Dc == 1.50.1 <= Qs/Qc && Qs/Qc <= 0.90.1 <= As/Ac && As/Ac <= 0.9 SD5-22 SD5-22 Symmetrical Wye, 45 Degree, Branches with 45 Degree Elbows, Branches 90 Degrees to Main, Diverging (Sepsy 1969) Theta == 180 P == 2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SD5-23 SD5-23 Double Wye, 45 Degree, Diverging (UMC 1990, Fig. 33) Theta == 45 P == 3 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 0.2 <= As/Ac && As/Ac <= 1.0 SD5-23 Double Wye, 45 Degree, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 3 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-24 SD5-24 Cross, Diverging (UMC 1990, Fig. 33) P == 2 Theta == 90 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 0.2 <= As/Ac && As/Ac <= 1.0 SD5-24 Cross, Diverging (UMC 1986, Report SRF386) P == 2 Theta == 90 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-25 SD5-25 Cross, Conical Branches Tapered into Body, Diverging (UMC 1990, Fig. 33) P == 2 Theta == 90 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 0.2 <= As/Ac && As/Ac <= 1.0 SD5-25 Cross, Conical Branches Tapered Into Body, Diverging (UMC 1986, Report SRF386) P == 2 Theta == 90 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-26 SD5-26 Cross, 45 Degree Entry Branches, Diverging (UMC 1990, Fig. 33) Theta == 90 P == 2 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 0.2 <= As/Ac && As/Ac <= 1.0 SD5-26 Cross, 45 Degree Entry Branches, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-3 SD5-3 Wye, 45 Degree, Conical Branch, Diverging (Jones 1969, Fig. 14) Theta == 45 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-3 Wye, 45 Degree, Conical Branch, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-4 SD5-4 Wye, 45 Degree, Branch with 45 Degree Elbow, Branch 90 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-4 Wye, 45 Degree, Branch with 45 Degree Elbow, Branch 90 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-5 SD5-5 Wye, 45 Degree, Conical Branch with 60 Degree Elbow, Branch 90 Degrees to Main,Diverging (Jones 1969, Fig. 20) Theta == 90 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-5 Wye, 45 Degree, Conical Branch with 60 Degree Elbow, Branch 90 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-6 SD5-6 Wye, 45 Degree, Branch with 60 Degree Elbow, Branch 90 Degrees to Main, Diverging (Jones 1963, Fig. 3) Theta == 90 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-6 Wye, 45 Degree, Branch with 60 Degree Elbow, Branch 90 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 90 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-7 SD5-7 Wye, 45 Degree, Branch with 30 Degree Elbow, Branch 45 Degrees to Main, Diverging (Jones 1963, Fig. 2) Theta == 45 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-7 Wye, 45 Degree, Branch with 30 Degree Elbow, Branch 45 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-8 SD5-8 Wye, 45 Degree, Conical Branch with 30 Degree Elbow, Branch 45 Degrees to Main, Diverging (Jones 1969, Fig. 24) Theta == 45 P == 2 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-8 Wye, 45 Degree, Conical Branch with 30 Degree Elbow, Branch 45 Degrees to Main, Diverging (UMC 1986, Report SRF386) Theta == 45 P == 2 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD5-9 SD5-9 Tee, Diverging (UMC 1986, Report SRF386) P == 1 Theta == 90 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SD5-9 Tee, Diverging (UMC 1986, Report SRF386) P == 1 Theta == 90 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SD7-1 SD7-1 Fan, Vaneaxial, Discharging into a Plenum (AMCA 1990, Fig. 8-2)0.0 <= L/Le && L/Le <= 100.0 SD7-2 SD7-2 Fan Outlet, Tubeaxial, with 4-Gore Elbow (AMCA 1990, Fig. 8-4) SD7-3 SD7-3 Fan Outlet, Tubeaxial, with Mitered Elbow (AMCA 1990, Fig. 8-4) SD7-4 SD7-4 Fan Outlet, Vaneaxial, with 4-Gore Elbow (AMCA 1990, Fig. 8-4)0.0 <= L/Le && L/Le <= 100.0 SD7-5 SD7-5 Fan Outlet, Vaneaxial, with Mitered Elbow (AMCA 1990, Fig. 8-4)0.0 <= L/Le && L/Le <= 100.0 SF5-1 SF5-1 Tee, Flat Oval, Straight Body Branch, Diverging P == 1 Theta == 90 0.0 <= Qb/Qc && Qb/Qc <= 1.0 0.0 <= Ab/Ac && Ab/Ac <= 1.0 SF5-1 Tee, Flat Oval, Straight Body Branch, Diverging P == 1 Theta == 90 0.0 <= Qs/Qc-> && Qs/Qc-> <= 1.0 SF5-2 SF5-2 Tee, Flat Oval, Conical Body Branch, Diverging P == 1 Theta == 90 0.0 <= Qb/Qc && Qb/Qc <= 1.0 0.0 <= Ab/Ac && Ab/Ac <= 1.0 SF5-2 Tee, Flat Oval, Conical Body Branch, Diverging P == 1 Theta == 90 0.0 <= Qs/Qc-> && Qs/Qc-> <= 1.0 SF5-3 SF5-3 Wye, Flat Oval, 45 Degree, Straight Body Branch, Converging Theta == 45 P == 2 0.0 <= Qb/Qc && Qb/Qc <= 1.0 0.0 <= Ab/Ac && Ab/Ac <= 1.0 SF5-3 Wye, Flat Oval, 45 Degree, Straight Body Branch, Diverging Theta == 45 P == 2 0.0 <= Qs/Qc-> && Qs/Qc-> <= 1.0 SF5-4 SF5-4 Wye, Flat Oval, 45 Degree, Conical Body Branch, Converging Theta == 45 P == 2 0.0 <= Qb/Qc && Qb/Qc <= 1.0 0.0 <= Ab/Ac && Ab/Ac <= 1.0 SF5-4 Wye, Flat Oval, 45 Degree, Conical Body Branch, Diverging Theta == 45 P == 2 0.0 <= Qs/Qc-> && Qs/Qc-> <= 1.0 SR1-1 SR1-1 Conical Bellmouth/Sudden Contraction, Plenum to Rectangular, Supply Air Systems (Idelchik 1986, Diagram 4-9)0.0 <= Theta && Theta <= 180.00.0 <= L/Dh && L/Dh <= 0.60.1 <= Ao/A1 && Ao/A1 <= 0.9 SR2-1 SR2-1 Abrupt Exit (Idelchik 1986, Diagram 11-1)0.1 <= H/W && H/W <= 10.0 SR2-1 Abrupt Exit (Idelchik 1986, Diagram 11-1) SR2-2 SR2-2 Discharge from Duct Flush with Wall (Idelchik 1986, Diagram 11-2)0.0 <= V/Vo && V/Vo <= 2.030.0 <= Theta && Theta <= 150.00.1 <= H/W && H/W <= 10.0 SR2-3 SR2-3 Plain Diffuser (Two Sides Parallel), Free Discharge (Idelchik 1986, Diagram 11-6)8.0 <= Theta && Theta <= 120.050000.0 <= Re && Re <= 2000000.01.0 <= A1/Ao && A1/Ao <= 6.0 SR2-4 SR2-4 Plain Diffuser (Two Sides Parallel), with Wall (Idelchik 1986, Diagram 5-10)0.5 <= L/H && L/H <= 14.0 SR2-4 Plain Diffuser (Two Sides Parallel), with Wall (Idelchik 1986, Diagram 5-10)0.5 <= L/H && L/H <= 14.0 SR2-5 SR2-5 Pyramidal Diffuser, Free Discharge (Idelchik 1986, Diagram 11-5)8.0 <= Theta && Theta <= 120.050000.0 <= Re && Re <= 2000000.01.0 <= A1/Ao && A1/Ao <= 10.0 SR2-6 SR2-6 Pyramidal Diffuser, with Wall (Idelchik 1986, Diagram 5-9)0.5 <= L/Dh && L/Dh <= 14.0 SR2-6 Pyramidal Diffuser, with Wall (Idelchik 1986, Diagram 5-9)0.5 <= L/Dh && L/Dh <= 14.0 SR3-1 SR3-1 Elbow, 90 Degree, Variable Inlet/Outlet Areas, Supply Air Systems (Idelchik 1986, Diagram 6-4)Theta == 900.6 <= Wo/W1 && Wo/W1 <= 2.00.3 <= H/W1 && H/W1 <= 100.0 SR4-1 SR4-1 Transition, Rectangular, Two Sides Parallel, Symmetrical, Supply Air Systems (Idelchik 1986, Diagram 5-5)S0 == S110.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 16.0 SR4-2 SR4-2 Transition, Pyramidal, Supply Air Systems (Idelchik 1986, Diagram 5-4)S0 == S110.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 16.0 SR4-3 SR4-3 Transition, Round to Rectangular, Supply Air Systems (Idelchik 1986, Diagram 5-27)S0 == Round10.0 <= Theta && Theta <= 180.00.1 <= Ao/A1 && Ao/A1 <= 16.0 SR5-1 SR5-1 Smooth Radius Wye of the Type As + Ab > or = Ac, Branch 90 Degrees to Main, Diverging (Idelchik 1986, Diagram 7-21) Theta == 90 P == 2 As+Ab >= Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.3 <= Ab/Ac && Ab/Ac <= 1.0 0.5 <= As/Ac && As/Ac <= 1.0 SR5-1 Smooth Radius Wye of the Type As + Ab > or = Ac, Branch 90 Degrees to Main, Diverging (Idelchik 1986, Diagram 7-21) Theta == 90 P == 2 As+Ab >= Ac 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.3 <= Ab/Ac && Ab/Ac <= 1.0 0.5 <= As/Ac && As/Ac <= 1.0 SR5-10 SR5-10 Tee of the Type As + Ab = Ac, Diverging (Idelchik 1986, Diagram 7-16) P == 1 Theta == 90 As+Ab == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-10 Tee of the Type As + Ab = Ac, Diverging (Idelchik 1986, Diagram 7-17) P == 1 Theta == 90 As+Ab == Ac 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR5-11 SR5-11 Tee, Rectangular Main to Round Tap, Diverging (Brooks 1993) P == 1 Theta == 90 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-11 Tee, Rectangular Main to Round Tap, Diverging (Brooks 1993) P == 1 Theta == 90 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR5-12 SR5-12 Tee, Rectangular Main to Round Conical Tap, Diverging (Inoue 1980, Korst 1950) P == 1 Theta == 90 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-12 Tee, Rectangular Main to Round Conical Tap, Diverging (Brooks 1993) P == 1 Theta == 90 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR5-13 SR5-13 Tee, 45 Degree Entry Branch, Diverging (Brooks 1993) Theta == 90 P == 1 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-13 Tee, 45 Degree Entry Branch, Diverging (Brooks 1993) Theta == 90 P == 1 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR5-14 SR5-14 Wye, Symmetrical, Dovetail, Qb/Qc = 0.5, Diverging (Idelchik 1986, Diagram 7-24) P == 2 Theta == 180 Qb/Qc == 0.5 0.5 <= Ab/Ac && Ab/Ac <= 1.0 SR5-15 SR5-15 Bullhead Tee without Vanes, Diverging (Idelchik 1986, Diagrams 7-16 & 7-30) P == 2 Theta == 180 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SR5-16 SR5-16 Symmetrical Wye of the Type Ab1 + Ab2 = Ac, 30 Degree, Diverging (Idelchik 1986, Diagrams 7-16 and 7-30) Theta == 30 P == 2 Ab1+Ab2 == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SR5-17 SR5-17 Symmetrical Wye of the Type Ab1 + Ab2 = Ac, 60 Degree, Diverging (Idelchik 1986, Diagrams 7-16 and 7-30) Theta == 60 P == 2 Ab1+Ab2 == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SR5-18 SR5-18 Symmetrical Wye of the Type Ab1 + Ab2 = Ac, 90 Degree, Diverging (Idelchik 1986, Diagrams 7-16 and 7-30) Theta == 90 P == 2 Ab1+Ab2 == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SR5-19 SR5-19 Symmetrical Wye of the Type Ab1 + Ab2 = Ac, 120 Degree, Diverging (Idelchik 1986, Diagrams 7-16 and 7-30) Theta == 120 P == 2 Ab1+Ab2 == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.9 SR5-2 SR5-2 Wye of the Type As + Ab > Ac, As = Ac, 30 Degree, Diverging (Idelchik 1986, Diagram 7-15) Theta == 30 P == 2 As == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.8 SR5-2 Wye of the Type As + Ab > Ac, As = Ac, 30 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 30 P == 2 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 SR5-20 SR5-20 Double Wye of the Type As = Ac, 45 Degree, Diverging (Idelchik 1986, Diagrams 7-15 & 7-27) Theta == 45 P == 3 As == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.8 SR5-20 Double Wye of the Type As = Ac, 45 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 45 P == 3 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 SR5-21 SR5-21 Cross of the type, As = Ac, Diverging (Idelchik 1986, Diagrams 7-15 and 7-29) P == 2 Theta == 90 As == Ac 0.1 <= Qb1/Qc && Qb1/Qc <= 0.9 0.1 <= Ab1/Ac && Ab1/Ac <= 0.8 SR5-21 Tee of the type, As = Ac, Diverging (Idelchik 1986, Diagram 7-17) P == 1 Theta == 90 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 SR5-3 SR5-3 Wye of the Type As + Ab > Ac, As = Ac, 45 Degree, Diverging (Idelchik 1986, Diagram 7-15) Theta == 45 P == 2 As == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.8 SR5-3 Wye of the Type As + Ab > Ac, As = Ac, 45 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 45 P == 2 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 SR5-4 SR5-4 Wye of the Type As + Ab > Ac, As = Ac, 60 Degree, Diverging (Idelchik 1986, Diagram 7-15) Theta == 60 P == 2 As == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.8 SR5-4 Wye of the Type As + Ab > Ac, As = Ac, 60 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 60 P == 2 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 SR5-5 SR5-5 Tee of the Type As + Ab > Ac, As = Ac, Diverging (Idelchik 1986, Diagram 7-15) P == 1 Theta == 90 As == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.8 SR5-5 Tee of the Type As + Ab > Ac, As = Ac, Diverging (Idelchik 1986, Diagram 7-17) P == 1 Theta == 90 As == Ac 0.1 <= Qs/Qc && Qs/Qc <= 1.0 SR5-6 SR5-6 Wye of the Type As + Ab = Ac, 15 Degree, Diverging (Idelchik 1986, Diagram 7-16) Theta == 15 P == 2 As+Ab == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-6 Wye of the Type As + Ab = Ac, 15 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 15 P == 2 As+Ab == Ac 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR5-7 SR5-7 Wye of the Type As + Ab = Ac, 30 Degree, Diverging (Idelchik 1986, Diagram 7-16) Theta == 30 P == 2 As+Ab == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-7 Wye of the Type As + Ab = Ac, 30 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 30 P == 2 As+Ab == Ac 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR5-8 SR5-8 Wye of the Type As + Ab = Ac, 45 Degree, Diverging (Idelchik 1986, Diagram 7-16) Theta == 45 P == 2 As+Ab == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-8 Wye of the Type As + Ab = Ac, 45 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 45 P == 2 As+Ab == Ac 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR5-9 SR5-9 Wye of the Type As + Ab = Ac, 60 Degree, Diverging (Idelchik 1986, Diagram 7-16) Theta == 60 P == 2 As+Ab == Ac 0.1 <= Qb/Qc && Qb/Qc <= 0.9 0.1 <= Ab/Ac && Ab/Ac <= 0.9 SR5-9 Wye of the Type As + Ab = Ac, 60 Degree, Diverging (Idelchik 1986, Diagram 7-17) Theta == 60 P == 2 As+Ab == Ac 0.1 <= Qs/Qc && Qs/Qc <= 0.9 0.1 <= As/Ac && As/Ac <= 0.9 SR7-1 SR7-1 Fan, Centrifugal, without an Outlet Diffuser, Free Discharge (AMCA 1990, Fig. 8-3)0.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-10 SR7-10 Fan Outlet, Centrifugal, DWDI, with Elbow (Position B) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-11 SR7-11 Fan Outlet, Centrifugal, DWDI, with Elbow (Position C) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-12SR7-12 Fan Outlet, Centrifugal, DWDI, with Elbow (Position D) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-13 SR7-13 Plane Symmetric Diffuser at Centrifugal Fan Outlet with Ductwork (Idelchik 1986, Diagram 5-12)1.5 <= Ao/A1 && Ao/A1 <= 4.010.0 <= Theta && Theta <= 35.0 SR7-14 SR7-14 Plane Asymmetric Diffuser (Configuration 1) at Centrifugal Fan Outlet with Ductwork(Idelchik 1986, Diagram 5-13)1.5 <= Ao/A1 && Ao/A1 <= 4.010.0 <= Theta && Theta <= 35.0 SR7-15 SR7-15 Plane Asymmetric Diffuser (Configuration 2) at Centrifugal Fan Outlet with Ductwork (Idelchik 1986, Diagram 5-14)1.5 <= Ao/A1 && Ao/A1 <= 4.010.0 <= Theta && Theta <= 35.0 SR7-16 SR7-16 Plane Asymmetric Diffuser (Configuration 3) at Centrifugal Fan Outlet with Ductwork (Idelchik 1986, Diagram 5-15)1.5 <= Ao/A1 && Ao/A1 <= 4.010.0 <= Theta && Theta <= 35.0 SR7-17 SR7-17 Pyramidal Diffuser at Centrifugal Fan Outlet with Ductwork (Idelchik 1986, Diagram 5-16)1.5 <= Ao/A1 && Ao/A1 <= 4.010.0 <= Theta && Theta <= 30.0 SR7-2 SR7-2 Plane Asymmetric Diffuser at Centrifugal Fan Outlet, Free Discharge (Idelchik 1986, Diagram 11-11)1.5 <= A1/Ao && A1/Ao <= 4.010.0 <= Theta && Theta <= 35.0 SR7-3 SR7-3 Pyramidal Diffuser at Centrifugal Fan Outlet, Free Discharge (Idelchik 1986, Diagram 11-11)1.5 <= A1/Ao && A1/Ao <= 4.010.0 <= Theta && Theta <= 30.0 SR7-4 SR7-4 Fan, Centrifugal, Discharging into a Plenum (AMCA 1990, Fig. 8-3)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-5 SR7-5 Fan Outlet, Centrifugal, SWSI, with Elbow (Position A) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-6 SR7-6 Fan Outlet, Centrifugal, SWSI, with Elbow (Position B) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-7 SR7-7 Fan Outlet, Centrifugal, SWSI, with Elbow (Position C) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-8 SR7-8 Fan Outlet, Centrifugal, SWSI, with Elbow (Position D) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0 SR7-9 SR7-9 Fan Outlet, Centrifugal, DWDI, with Elbow (Position A) (AMCA 1990, Fig. 8-5)0.0 <= L/Le && L/Le <= 10.00.4 <= Ab/Ao && Ab/Ao <= 1.0