Equivalent Length Calculations - Samsung RD VHXF Series Installation Manual

Equivalent length calculations

 Equivalent length calculation method
Equivalent length = actual pipe length(m) + number of 'Y-joint'×0.5(m)+number of 'Header joint'×1.0(m)+
number of elbows×equivalent length of each elbow
Elbow
Pipe size(O.D.)
mm inches
Ø9.52 Ø3/8
Ø12.70 Ø1/2
Ø15.88 Ø5/8
Ø19.05 Ø3/4
Ø22.23 Ø7/8
Ø25.40 Ø1
Ø28.58 Ø1-1/8
Ø31.75 Ø1-1/4
Ø34.93 Ø1-3/8
Ø38.10 Ø1-1/2
Ø41.30 Ø1-5/8
Ø44.45 Ø1-3/4
Ø50.80 Ø2
Equivalent length
Y joint
m ft
Header joint
0.18 0.59
0.20 0.66
0.25 0.82
0.35 1.15
0.40 1.31
0.45 1.48
0.50 1.64
0.55 1.80
0.58 1.90
0.60 1.97
0.70 2.30
0.75 2.46
0.80 2.62
Equivalent length
Type
m ft
0.5 1.64
1.0 3.28
installing the unit _19