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.
• High resolution for precise control.
• Wide range for all common refrigerants R22,
R134a, R404A, R407A, R407C, R407F, R422B,
R422D, R438A, R448A, R449A, R450A, R452A,
R507, R513A, R410A, R1234ze and other
refrigerants
• Balanced port design (KVS 42).
• 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
R22, R134a, R404A, R407A, R407C,
Compatible refrigerants
Refrigerant oil All mineral and ester oils All mineral and ester oils
CE marking No Yes
MOPD 33 bar / 478.6 psig 33 bar / 478 psig
Max. working pressure 45.5 bar / 660 psig 34 bar / 493 psig
Inlet fluid temperature -40 to +65 °C / -40 to +149 °F -40 to +65 °C / -40 to +149 °F
Ambient temperature -40 to +60 °C / -40 to +140 °F -40 to +60 °C / -40 to +140 °F
Total stroke 13 mm / 0.5 inch 17.2 mm / 0.68 inch
Motor enclosure IP 67 IP 67
Material of Construction
Parameter KVS 15 and KVS 42
Stepper motor type Bi-polar - permanent magnet
Step mode 2 phase full step
Phase resistance 52 Ω ±10%
Phase inductance 85 mH
Holding current
Step angle
Nominal voltage Constant voltage drive: 12 V DC -4% – 15%, 150 steps/sec.
Phase current (Using chopper drive) 100 mA RMS -4% +15%,
Max. total power Voltage / current drive: 5.5 / 1.3 W (UL: NEC class 2)
Step rate
Total steps
Full travel time
Lifting height
Reference position Overdriving against the full close position
Electrical connection M12 connector
R407F, R422B, R422D, R438A,
R448A, R449A, R450A, R452A, R507,
R513A, R410A, R1234ze and other
refrigerants
Body and AST Encloser: Brass
Connector: Copper
Constant voltage drive: Depends on application.
Chopper drive: full current allowed (100% duty cycle)
7.5° (motor),
0.9° (lead screw),
Gearing ration 8.5:1. (38/13)2:1
Constant voltage drive: 150 steps/sec.
Chopper current drive: 0 – 300 steps/sec. 300 recommended
KVS 15: 2625 [+160 / -0] steps
KVS 42: 3810 [+160 / -0] steps
KVS 15: 17 / 8.5 sec. (voltage / current)
KVS 42: 25.4 / 12.7 sec. (voltage / current)
KVS 15: 13 mm / 0.5 inch
KVS 42: 17.2 mm / 0.68 in
R22, R134a, R404A, R407A, R407C,
R407F, R422B, R422D, R438A,
R448A, R449A, R450A, R452A, R507,
R513A, R410A, R1234ze and other
refrigerants
Body and AST Encloser: Brass
Connector: Copper
Flow curves
Compatible controller / driver EKC 368 / EKD 316 or EKD 316C
KVS 15 Capacity Curve
.
.
KVS 42 Capacity Curve
© Danfoss | DCS (sw) | 1017.10
DKRCC.PD.VC1.C7.02 | 2
Data sheet | Electric regulating valve type KVS 15 – KVS 42
Ordering
Accessories:
M12 Female Connector Cable
Spare parts
KVS valves in single pack
Rated capacity
Type
R22 R134a R404A/R507 ODF Code no.
kW TR kW TR kW TR mm in.
KVS 15 5.15 1.31 3.78 0.94 4.58 1.07
KVS 42 40.4 11 . 4 29.3 8.3 35.3 10.0
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).
1)
Connections
single
pack
16 ⁄ 034G4252
22 ⁄ 034G4253
22 ⁄ 034G2858
28 1⁄ 034G2850
35 1⁄ 034G2851
- 1⁄ 034G2852
Actuator with integrated M12 connection
Items Description Quantity
[pcs]
34G179.10
Danfoss
Actuator with integrated M12 with Ceramic bearing
(incl. metal gasket) for KVS 15
Code no.
1 034G2088
34G179.10
Danfoss
Actuator with integrated M12 with ceramic bearing
1 034G2087
(incl. metal gasket) for KVS 42
Metal Gasket 1 034G2344
© Danfoss | DCS (sw) | 1017.10
DKRCC.PD.VC1.C7.02 | 3
Loading...