Danfoss KVC Data sheet
Data sheet
Hot gas bypass regulator
Type KVC
KVC hot gas bypass regulator are used to adapt compressor capacity to actual evaporator load by supplying a replacement capacity in form of
hot / cool gas.
It is installed in a bypass line between the high and low pressure sides of the refrigeration system and is designed for direct gas injection into the suction line.
Features |
• |
Accurate, adjustable pressure regulation |
• Compact angle design for easy installation |
|
|
• Wide capacity and operating range |
• |
”Hermetic” brazed construction |
|
|
• |
Pulsation damping design |
• Available with flare or ODF solder connections |
|
|
• |
Stainless steel bellows |
• |
May be used in the following EX range: Category |
|
|
|
|
3 (Zone 2) |
© Danfoss | DCS (rm) | 2020.10 |
DKRCC.PD.HE0.A7.22 | 1 |
Data sheet | Hot gas bypass regulator, type KVC
Approvals |
UL LISTED, file SA7200 |
|
|
|
EAC |
|
|
|
|
|
|
Technical data |
|
|
|
Refrigerants |
R22, R134a, R290, R404A, R407A, R407C, R407F, R407H, R448A, |
||
|
R449A, R449B, R450A, R452A, R454A, R454C, R455A, R507A, R513A, |
||
|
|
R515B, R516A, R600, R600a, R1234ze(E), R1234yf, R1270 |
|
|
Regulating range |
Pe = 3.00 – 87.00 psig |
|
Metric conversions: |
Factory setting = 29 psig |
||
|
|||
Maximum working pressure |
MWP = 406 psig |
||
1 psi = 0.07 bar |
|||
5⁄9 (t1 °F - 32) = t2 °C |
Maximum test pressure |
Pe = 450 psig |
|
1 TR = 3.5 kW |
Medium temperature range |
-49 – 266 °F |
|
|
|||
|
Maximum P-band |
29 psi |
This product is approved for R290, R454A, R454C, R455A, R600, R600a, R1234ze(E), R1234yf, R1270 by ignition source assessment in accordance with standard EN ISO80079-36. Flare connections are only approved for A1 and A2L refrigerants.
For complete list of approved refrigerants, visit www.products.danfoss.com and search for individual code numbers, where refrigerants are listed as part of technical data.
Ordering |
|
Rated capacity 1) |
|
Flare |
|
Solder |
|
|
Type |
|
|
[TR] |
|
connection 2) |
Code no. |
connection |
Code no. |
|
R22 |
R134a |
R404A/R507 |
R407C |
[in] |
|
[in] |
|
KVC 12 |
2.14 |
1.36 |
2.02 |
2.31 |
1⁄2 |
034L0141 |
1⁄2 |
034L0143 |
KVC 15 |
4.17 |
2.65 |
3.93 |
4.50 |
5⁄8 |
034L0142 |
5⁄8 |
034L0147 |
KVC 22 |
5.35 |
3.41 |
5.04 |
5.78 |
– |
– |
7⁄8 |
034L0144 |
1) Rated capacity is based on: Suction gas temperature ts = 14 °F Condensing temperature tl = 77 °F Offset ∆p = 10 psi
2) KVC are delivered without flare nuts. Separate flare nuts can be supplied: 1⁄2 in code no 011L1103
5⁄8 in code no 011L1167
Note:
The connection dimensions chosen must not be too small, as gas velocities in excess of 130 ft / s at the inlet of the regulator can result in flow noise.
If the temperature in the discharge gas line is too high according to the compressor specifications, it is recommanded to install a liquid injection valve in a bypass from the liquid line to the suction line.
© Danfoss | DCS (rm) | 2020.10 |
DKRCC.PD.HE0.A7.22 | 2 |
Data sheet | Hot gas bypass regulator, type KVC
Replacement capacity
Metric conversions: 1 psi = 0.07 bar
5⁄9 (t1 °F - 32) = t2 °C 1 TR = 3.5 kW
1 in = 25.4 mm
Maximum regulator capacity Qe 1)
R22
|
Offset ∆p |
|
Regulator capacity Qe 1) [TR] suction gas temperature ts after |
|
|||||
Type |
|
|
pressure / temperature reduction [°F] |
|
|
||||
|
|
|
|
|
|||||
|
[psi] |
-50 |
-40 |
-25 |
-10 |
10 |
30 |
50 |
|
|
1.5 |
– |
0.68 |
0.70 |
0.71 |
0.73 |
0.75 |
0.77 |
|
|
2.0 |
– |
0.93 |
0.95 |
0.97 |
1.00 |
1.03 |
1.05 |
|
|
3.0 |
– |
1.33 |
1.36 |
1.39 |
1.43 |
1.47 |
1.51 |
|
KVC 12 |
5.0 |
– |
1.75 |
1.79 |
1.83 |
1.88 |
1.93 |
1.98 |
|
7.5 |
– |
1.93 |
1.97 |
2.01 |
2.07 |
2.12 |
2.18 |
||
|
|||||||||
|
10.0 |
– |
2.00 |
2.04 |
2.08 |
2.14 |
2.20 |
2.26 |
|
|
15.0 |
– |
2.19 |
2.24 |
2.28 |
2.35 |
2.41 |
2.48 |
|
|
20.0 |
– |
2.62 |
2.67 |
2.72 |
2.80 |
2.87 |
2.94 |
|
|
1.5 |
– |
1.01 |
1.03 |
1.06 |
1.09 |
1.12 |
1.15 |
|
|
2.0 |
– |
1.20 |
1.23 |
1.25 |
1.29 |
1.32 |
1.35 |
|
|
3.0 |
– |
1.73 |
1.77 |
1.80 |
1.85 |
1.90 |
1.95 |
|
KVC 15 |
5.0 |
– |
2.64 |
2.69 |
2.75 |
2.83 |
2.90 |
2.98 |
|
7.5 |
– |
3.39 |
3.46 |
3.54 |
3.63 |
3.73 |
3.83 |
||
|
|||||||||
|
10.0 |
– |
3.90 |
3.98 |
4.06 |
4.17 |
4.28 |
4.39 |
|
|
15.0 |
– |
4.76 |
4.66 |
4.75 |
4.88 |
5.01 |
5.14 |
|
|
20.0 |
– |
5.05 |
5.16 |
5.27 |
5.42 |
5.57 |
5.72 |
|
|
1.5 |
– |
1.09 |
1.12 |
1.14 |
1.17 |
1.21 |
1.24 |
|
|
2.0 |
– |
1.38 |
1.41 |
1.44 |
1.48 |
1.52 |
1.56 |
|
|
3.0 |
– |
1.89 |
1.93 |
1.97 |
2.02 |
2.07 |
2.12 |
|
KVC 22 |
5.0 |
– |
2.88 |
2.94 |
3.00 |
3.08 |
3.16 |
3.24 |
|
7.5 |
– |
4.02 |
4.11 |
4.19 |
4.31 |
4.43 |
4.54 |
||
|
|||||||||
|
10.0 |
– |
4.98 |
5.09 |
5.20 |
5.35 |
5.50 |
5.64 |
|
|
15.0 |
– |
6.35 |
6.49 |
6.63 |
6.82 |
7.01 |
7.20 |
|
|
20.0 |
– |
7.10 |
7.25 |
7.40 |
7.60 |
7.79 |
7.99 |
|
1) The capacities are based on: Condensing temperature tl = 77 °F
Correction factors for condensing temperature tl. When liquid temperature tl is other than 77 °F, adjust the table capacities by multiplying them by the appropriate correction factor found in the following table.
Correction factors for condensing temperature tl
tl [°F] |
50 |
59 |
68 |
77 |
86 |
95 |
104 |
113 |
122 |
R22 |
0.9 |
0.93 |
0.96 |
1.00 |
1.05 |
1.1 |
1.13 |
1.18 |
1.24 |
System capacity × correction factor = table capacity |
|
|
|
|
|
|
|||
© Danfoss | DCS (rm) | 2020.10 |
DKRCC.PD.HE0.A7.22 | 3 |
Loading...