Danfoss KVS 15, KVS 42 Data sheet
Data sheet
Electric Regulating Valve
Type KVS
KVS is a series of electronic suction modulating valves for AC transport and refrigeration applications.
Accurate temperature or pressure control is obtained by modulating the refrigerant flow in the evaporator with a current or voltage driver.
With an EKC 368 controller (current driver) and an AKS sensor placed in the media to be controlled, an accuracy better than ± 0.5K can be obtained.
The balanced design provides bi-flow operation as well as solenoid shut-off function in both flow directions at MOPD 33 bar (478 psig).
Features |
• Biflow. |
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• High resolution for precise control. |
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• Wide range for all common refrigerants R22, |
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R134a, R404A, R407A, R407C, R407F, R422B, |
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R422D, R438A, R448A, R449A, R450A, R452A, |
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R507, R513A, R410A, R1234ze and other |
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refrigerants |
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• Balanced port design (KVS 42). |
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• Solenoid tight shut-off. |
•Low power consumption.
•Corrosion resistant design external as well as internal.
•Cable and connector assemblies as accessories.
•For manual operation and service of KVS valves an AST-g service driver is available.
For further information please contact Danfoss (Commercial Refrigeration & Air Conditioning Controls).
© Danfoss | DCS (sw) | 2017.10 |
DKRCC.PD.VC1.C7.02 | 1 |
Data sheet | Electric regulating valve type KVS 15 – KVS 42
Technical data
Electrical data
Parameter |
KVS 15 |
KVS 42 |
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R22, R134a, R404A, R407A, R407C, |
R22, R134a, R404A, R407A, R407C, |
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Compatible refrigerants |
R407F, R422B, R422D, R438A, |
R407F, R422B, R422D, R438A, |
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R448A, R449A, R450A, R452A, R507, |
R448A, R449A, R450A, R452A, R507, |
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R513A, R410A, R1234ze and other |
R513A, R410A, R1234ze and other |
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refrigerants |
refrigerants |
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Refrigerant oil |
All mineral and ester oils |
All mineral and ester oils |
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CE marking |
No |
Yes |
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MOPD |
33 bar / 478.6 psig |
33 bar / 478 psig |
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Max. working pressure |
45.5 bar / 660 psig |
34 bar / 493 psig |
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Inlet fluid temperature |
-40 to +65 °C / -40 to +149 °F |
-40 to +65 °C / -40 to +149 °F |
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Ambient temperature |
-40 to +60 °C / -40 to +140 °F |
-40 to +60 °C / -40 to +140 °F |
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Total stroke |
13 mm / 0.5 inch |
17.2 mm / 0.68 inch |
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Motor enclosure |
IP 67 |
IP 67 |
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Material of Construction |
Body and AST Encloser: Brass |
Body and AST Encloser: Brass |
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Connector: Copper |
Connector: Copper |
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Parameter |
KVS 15 and KVS 42 |
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Stepper motor type |
Bi-polar - permanent magnet |
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Step mode |
2 phase full step |
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Phase resistance |
52 Ω ±10% |
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Phase inductance |
85 mH |
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Holding current |
Constant voltage drive: Depends on application. |
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Chopper drive: full current allowed (100% duty cycle) |
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Step angle |
7.5° (motor), |
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0.9° (lead screw), |
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Gearing ration 8.5:1. (38/13)2:1 |
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Nominal voltage |
Constant voltage drive: 12 V DC -4% – 15%, 150 steps/sec. |
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Phase current |
(Using chopper drive) 100 mA RMS -4% +15%, |
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Max. total power |
Voltage / current drive: 5.5 / 1.3 W (UL: NEC class 2) |
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Step rate |
Constant voltage drive: 150 steps/sec. |
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Chopper current drive: 0 – 300 steps/sec. 300 recommended |
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Total steps |
KVS 15: 2625 [+160 / -0] steps |
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KVS 42: 3810 [+160 / -0] steps |
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Full travel time |
KVS 15: 17 / 8.5 sec. (voltage / current) |
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KVS 42: 25.4 / 12.7 sec. (voltage / current) |
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Lifting height |
KVS 15: 13 mm / 0.5 inch |
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KVS 42: 17.2 mm / 0.68 in |
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Reference position |
Overdriving against the full close position |
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Electrical connection |
M12 connector |
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Compatible controller / driver |
EKC 368 / EKD 316 or EKD 316C |
Flow curves |
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KVS 15 Capacity Curve |
KVS 42 Capacity Curve |
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© Danfoss | DCS (sw) | 1017.10 |
DKRCC.PD.VC1.C7.02 | 2 |
Data sheet | Electric regulating valve type KVS 15 – KVS 42
Ordering |
KVS valves in single pack |
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Rated capacity1) |
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Connections |
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Type |
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R22 |
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R134a |
R404A/R507 |
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ODF |
Code no. |
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single |
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kW |
TR |
kW |
TR |
kW |
TR |
mm |
in. |
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pack |
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KVS 15 |
5.15 |
1.31 |
3.78 |
0.94 |
4.58 |
1.07 |
16 |
5∕8 |
034G4252 |
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22 |
7∕8 |
034G4253 |
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22 |
7∕8 |
034G2858 |
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KVS 42 |
40.4 |
11.4 |
29.3 |
8.3 |
35.3 |
10.0 |
28 |
11∕8 |
034G2850 |
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35 |
13∕8 |
034G2851 |
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15∕8 |
034G2852 |
1) Rated capacity is the valve capacity at evaporating temperature te = –10°C (14°F), condensing temperature tc = +25°C (77°F) and pressure drop across valve ∆p = 0.2 bar (2.9 psig).
Accessories:
M12 Female Connector Cable
Actuator with integrated M12 connection
Spare parts |
Items |
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10.34G179 Danfoss
10.34G179 Danfoss
Description |
Quantity |
Code no. |
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[pcs] |
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Actuator with integrated M12 with Ceramic bearing |
1 |
034G2088 |
(incl. metal gasket) for KVS 15 |
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Actuator with integrated M12 with ceramic bearing |
1 |
034G2087 |
(incl. metal gasket) for KVS 42 |
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Metal Gasket |
1 |
034G2344 |
© Danfoss | DCS (sw) | 1017.10 |
DKRCC.PD.VC1.C7.02 | 3 |
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