Sanyo ECO G SGP-EW120M2G2W, Технические данные инструкция

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System Design
3. Refrigerant piping design
D-11
(5) Equivalent length of refrigerant piping
The following table shows the equivalent straight piping length of connectors that may be used in the piping
system.
Table 3. Equivalent straight piping length of connectors
Units (m)
Inlet pipe or thick pipe
(gas pipe)
φ
9.52
φ
12.7
φ
15.88
φ
19.05
φ
22.22
φ
25.4
φ
28.58
φ
31.75
φ
38.1
90º elbow 0.15 0.3 0.35 0.42 0.48 0.52 0.57 0.7 0.79
45º elbow 0.1 0.23 0.26 0.32 0.36 0.39 0.43 0.53 0.59
T-tee 0.2 0.5 0.5 0.6 – 0.8 0.9 0.9 –
Socket 0.05 0.1 0.11 0.12
–
0.14 0.16 0.18
–
U bend (R60 -100mm) 0.7 0.9 1.05 1.26 1.44 1.56 1.71 2.1 2.37
Trap bend 1.8 2.3 2.8 3.2 3.8 4.3 4.7 5.0 5.8
Branch pipe 0.5
Header pipe 1
Ball valve for service Not applicable to equivalent length calculation
Table 4. Equivalent straight piping length of bent pipe
Equivalent length
R
d
45º bend 90º bend 180º bend
0.5 25.0×d 40.0×d 53.5×d
1.0 12.0×d 18.5×d 25.8×d
1.5 7.8×d 12.2×d 16.4×d
2.0 6.4×d 10.0×d 13.4×d
2.5 5.9×d 9.2×d 12.3×d
3.0 5.7×d 9.0×d 12.0×d
3.5 5.9×d 9.2×d 12.2×d
4.0 6.4×d 10.0×d 13.4×d
4.5 7.1×d 11.0×d 14.8×d
Calculation example
d: OD R: Bend radius
－
=
－
=1.57
Example:
For a 19 mm dia. Pipe bent 90º with 30 mm radius
(d=19
・
R=30)
From the table,
Length = 12.2 x 19 =231 mm
The result is 0.23
R
d
30
19