Pulse Motor Expansion Valves Type KV -...
Transcript of Pulse Motor Expansion Valves Type KV -...
2 USCO.PD.V1.A1.22 / 521U0082 © Danfoss Inc (USCO / mks), 1-2008
Technical leaflet Pulse Motor Expansion Valves, Type KV
Introduction .....................................................................................................................................................................................3
Features ..............................................................................................................................................................................................3
Explanation of Action ...................................................................................................................................................................4
Operation Principles ..................................................................................................................................................................4-5
Common Refrigerant Valve and Coil Specifications...........................................................................................................6
Application Examples ...................................................................................................................................................................7
Selection Method .......................................................................................................................................................................8-9
Capacity R410A ............................................................................................................................................................................ 10
CO2 Applications .......................................................................................................................................................................... 11
Dimensions .................................................................................................................................................................................... 12
Contents Page
© Danfoss Inc (USCO / mks), 1-2008 USCO.PD.V1.A1.22 / 521U0082 3
Technical leaflet Pulse Motor Expansion Valves, Type KV
Wide selection for refrigeration and air •conditioning applicationsCompatible with various refrigerants: •R-410A, R-407C, R-134a, R-404A, R-22 Stepper motor drive provides high-precision •flow controlA range of full closing valve types is available •that generally require no solenoid valveHigh resolution: 480 steps from fully closed •to fully open
Introduction As environmental consciousness is being raised and global warming concerns are bringing ever more stringent regulations, the demand is quickly growing for energy-saving cooling and heating devices in household and commercial applications, including cold storage warehouses and, rapid freezing devices.
The KV series of stepper motor expansion valves have been solidly respected in Japanese markets since 1982. Danfoss Saginomiya offers KV series pulse motor expansion valves for numerous applications. KV reliability has been extensively field proven.
Features Compact and lightweight design•Power-saving design requires no energy for •stopping.Ideally suited for microcomputer control•Unipolar drive system (for bipolar drive, please •contact us)Bi-flow design for heat pump applications•UKV, SKV, VKV, AKV: UL recognized•
2007.10.18
4800 Pulse
FlowMax
4800 Pulse
FlowMax
4800 Pulse
FlowMax
a b c
KV valves have excellent flow characteristics, including high resolution at low load. •In KV valves that have an inflected flow characteristic as shown in (a) and (c), the flow per pulse has one rate for low flow and a higher rate for greater flow. With these valves, fine control can be accomplished with a low load (low flow). Full closing KV valves having a flow characteristic (b), (c) are available with inflected flow characteristic or continuous flow characteristic, the latter having very nearly the same change in flow rate per pulse.
Long valve lift range results in a wider range of controllable capacity•
As can be seen in the diagram above, pulse motor expansion valves have a much greater range than mechanical valves.
2007.10.18
VPX-3415BPC2.62
PKV-18BS
Capa
city
(U.S
.R.T
)
0
3
VPX-3408BPC1.40
VPX-3405BPC0.87
VPX-3403BPC0.52
Our mechanical expansion valves
Our pulse motorexpansion valves
(capacity ..... R407C)
3.0
4 USCO.PD.V1.A1.22 / 521U0082 © Danfoss Inc (USCO / mks), 1-2008
Technical leaflet Pulse Motor Expansion Valves, Type KV
In operation of the KV valve, the magnet-needle valve assembly is rotated by the stepper motor (principle described in next paragraph) and by means of a screw structure has linear motion, opening and closing to regulate refrigerant flow. This simple structure results in compact products.
2007.10.10
Sectional diagram of KV series
B
A
Magnet
Coil Male screw
Female screw
Needle valve
Body
Fluid direction
Explanation of Action
Figs.1-1 and 1-2 show a vertical cross section of the coils (upper coil (A and A) and lower coil (B and B). Each coil comprises a clockwise winding A, B and a counterclockwise winding A, B. Each coil has 3 terminals. Fig.1-3 shows the arangement of the stators that surround the armature. The polarities of the magnetic poles change depending on the direction of current flow.
Operation Principle I
2007.10.10
KV_Z_6
Operation principle
Lower coil
Stator
Upper coil Housing
SS
NN
COM
COM
A
A
B
B
A Phase A,B Phase A,B PhaseB Phase
Upper coil
Lower coil
S N S N
NSNS
S N
SN
Fig.1-1
Fig.1-2
Fig.1-3
Connector No. ONOFF1 A Phase
2 B PhaseA PhaseB Phase
345 COM.(+)
Fig.1-4 Excitation sequence (1-2 phase excitation)
Valve operation Valve opens Valve is closed
© Danfoss Inc (USCO / mks), 1-2008 USCO.PD.V1.A1.22 / 521U0082 5
Technical leaflet Pulse Motor Expansion Valves, Type KV
This section explains the rotation of the permanent magnet rotor. The rotor has 24 poles, but the following explanation is simplified by dealing with only 4 of the poles.Fig.2-1 shows a vertical cross section through the stator. It shows the positional relation of the stator magnetic poles with the horizontal sectional diagram in Fig.2-2. In Fig.2-1, j shows the upper teeth of phase A, k shows the lower teeth of phase A, l shows the upper teeth of phase B, and m shows the lower teeth of phase B.
Assume that a current flows to phase A as a pulse. The polarities in Fig. (I) are generated in the stator to stabilize the rotor with an arrow facing upward. When feeding a current to phase AB by sending a pulse, the polarities are as shown in Fig. (II) causing the rotor to turn 22.5 degrees. When a subsequent current pulse is sent to phase B, the polarities are as shown in Fig. (III) causing the rotor to turn a further 22.5 degrees. By feeding pulses sequentially, one cycle is composed of 8 pulses, and the rotor rotates 180 grees in this figure. (A KV valve, remember, actually has 24 poles, so that the rotor rotates one sixth as far as in our example, or 30 degrees with every cycle. )
2007.10.10
KV_Z_7
Fig.2-1
A PhaseUpper tooth
Lower tooth
B PhaseUpper tooth
Lower tooth
N
N NS
N
S S
A Phase
S
N
N
S S
S
S
N
N
AB Phase
NN
S
SS
S
N
N
AB Phase
S
S
N NN
NSS
N
N
S
S
AB Phase
N
N
S SS
NN
S
NS
N
N
N
S
S
B Phase
S
S
S
N N
AB Phase
N
N
S
S
SS
N
N
S
NS
N
S
N N
A Phase
S
N
NS
S
S
N
N
B Phase
S
Fig.2-2
Operation Principle II
6 USCO.PD.V1.A1.22 / 521U0082 © Danfoss Inc (USCO / mks), 1-2008
Technical leaflet Pulse Motor Expansion Valves, Type KV
Valve Specifications
Coil Specifications
0.31 OD 0.31 OD0 to 3.5 0 to 507
0.28
0.23
0.18
2.4 348 or less
1.0 145 or less
VKV–25D
0 to 2.5 0 to 3621.5 217 or less
0.37 OD 0.50 OD
0.63 OD 0.63 OD 0 to 2.5 0 to 362 0.7 101 or less
2.2 319 or less
2.8 406 or less
1.5 217 or less
2.2 319 or less
3/8" 0 to 2.3 0 to 333
0 to 2.8 0 to 406
0.5
0.8
0.3
PKV-24BS 0.09
0 to 2.2 0 to 319 0.71/2"(Flare)5.0 17.5 3.9 13.7 3.5 12.3 5.1 18.0
PKV-14BS 0.06 1.5 5.2 1.1 4.0 1.0 3.6 1.5 5.3 1.7 6.1
2.9 10.3PKV-18BS 0.07 2.3 8.1 2.1 7.3 3.0 10.6 3.4 12.1
5.9 20.6
5.3 18.5 4.1 14.5 3.7 13.1 5.4 19.0 6.2 21.8
PKV-30BS 0.12 7.9 27.8 6.2 21.7 5.6 19.6 8.1 28.5 9.3 32.7
Catalog No.PortSize
( inch)
Capacity(U.S.R.T.) kW
Connection (Solder)(inch)
Operating PressureDifferential, B to A
(MPa) psi
Wt.(kg)
R22 R134a R407C R410A B side A side
0.31 OD 0.31 OD
0.25 OD 0.25 OD
0.31 OD 0.31 OD
0 to 3.5 0 to 507
0 to 3.5 0 to 507
Valve shut press.on, A to B
flow directionflow direction(MPa) psiR404A
2.5 362 or less
2.4 348 or less
Capacity: Based on CT=38°C[100˚F], ET=5°C[41˚F], SC=0°C[0˚K] and SH=0°C[0˚K]
(Flare)
3/8"(Flare)
*1
*1 Refer to the following fig. *2 Weight includes a coil.
*1*1 *2
2.3 8.2 1.8 6.4 2.4 8.5 2.8 9.7SKV–16D 1.7 5.80.06
SKV–18D 2.9 10.3 2.3 8.1 3.0 10.6 3.4 12.12.1 7.30.07
2.9 10.3 2.3 8.1 2.1 7.3 3.0 10.6 3.4 12.1UKV–18D 0.07
VKV–20D 2.5 8.73.5 12.4 2.7 9.7 3.6 12.7 4.1 14.50.08
0.09
VKV–30D 7.0 24.7 5.5 19.3 5.0 17.4 7.2 25.4 8.3 29.10.12
5.6 19.6 4.4 15.3 3.9 13.8 5.7 20.1 6.5 23.0UKV–25D 0.09
7.6 26.8 6.0 20.9 5.4 18.9 7.8 27.5 9.0 31.5UKV–30D 0.12
VKV–32D 5.8 20.38.2 28.8 6.4 22.5 8.4 29.6 9.6 33.90.125
AKV–55D 27.9 98.116.7 58.80.22 23.7 83.4 18.5 65.2 24.4 85.6
Maximum working pressure: 609 psi (4.2 MPa) Ambient temperature: -22 to 140oF (-30 to 60oC) Type PKV: -58 to 140oF (-50 to 60oC)Fluid Temperature: -22 to 248oF (-30 to 12oC) Type AKV: -22 to 266oF (-30 to 130oC) Type PKV: -58 to 140oF (-50 to 60oC)Ambient humidity 95% RH or less
Modulation: Permanent magnet type direct operating stepper motorExcitation method: 1-2 phaseExcitation speed: 31.3 pps +10% Operating range: 0 to 480 pulsesIntialization: Phase A COM (+)
Common Refrigerant ModelsSpecifications
Motor and Drive Specifications
0.38A / Phase
AKV
0.26A / Phase Current (at 20˚C[68˚F])12V DC ±10%Rated voltage
UKV,SKV,VKV,PKVType
32 ± 3 Ω (at 20˚C[68˚F])
46 ± 3 Ω(at 20˚C[68˚F])
Direct current resistance
IP66Enclosure
Class E MoldedInsulation class
115˚C[239˚F] or less by rated voltage, temperature - resistance method. Max. coil temperature
B Side Conn.
A Side Conn.
*1
B to A flow direction
A to B flow direction
© Danfoss Inc (USCO / mks), 1-2008 USCO.PD.V1.A1.22 / 521U0082 7
Technical leaflet Pulse Motor Expansion Valves, Type KV
Comp.
Remote ControllerMain PC Board
Anti Freeze Heater
Pulse Motor Expansion ValveKV series
4-WayReversing Valve
Type STF
Pressure SensorType XSK
High Pressure ControlsType HNS
Aircoil TemperatureSensor
Type TEK
Inlet Temperature SensorType TEK
Outlet Temperature SensorType TEK
Flow SwitchType FQS
Comp.
Cooling
Indoor UnitOutdoor Unit
Controller
Accumulator
Pressure SensorType NSK
4-way reversingvalve
Type STF
Pulse Motor Expansion ValveKV series
Application Examples Multi-type heat pump unit
Chiller unit
8 USCO.PD.V1.A1.22 / 521U0082 © Danfoss Inc (USCO / mks), 1-2008
Technical leaflet Pulse Motor Expansion Valves, Type KV
Aimed refrigerating temperature: - 40oFKind of refrigerant used: R407C
Operating conditions of unit
Just after starting operation Just after terminating operation
Condensing temp (CT)
104oF 104oF
Sub cool (SC) 54oF 72oF
Evaporating temp (ET)
-22oF -58oF
Required capacity26.5kW
(with the maximum load)15.6kW
If the operating conditions of the unit are known, a KV valve can be selected easily according to the capacity – valve opening graph given on the next page.
Let’s select an optimum pulse motor expansion valve for the operating conditions shown at the bottom of this page.1) Calculate the required maximum refrigerating capacity of the unit (normally, the capacity just after starting).Enter the R-407C correction factor table in the row for evaporating temperature (-22˚F) and condensing temperature (72˚F) , and in the column for the subcool temperature (54˚F) , and at their intersection find the correction factor (1.39). Then calculate the required maximum capacity (19.1kW) of the unit by dividing the refrigerating capacity (26.5kW) by the correction factor.2) Calculate the required minimum refrigerating capacity of the unit (normally, the capacity just after stopping operation). Enter the table in the row for the evaporating temperature (-58˚F) and condensing temperature (104˚F) , and in the column for the subcool temperature (72˚F) , and at their intersection find the correction factor (1.47). Then calculate the required minimum capacity (10.6kW) of the unit by dividing the refrigerating capacity (15.6kW) by the correction factor.3) Selection of pulse motor expansion valvesPulse motor expansion valves PKV-30BS and PKV-24BS can have refrigerating capacity larger than the required maximum capacity of the unit at maximum opening 480 pulses. When comparing the valve opening width between the maximum load and the minimum load with each other, it is 80 pulses in PKV-30BS and 200 pulses in PKV-24BS. Select PKV-24BS in this case because the valve opening width between the maximum load and minimum load is wider (high resolution).
Selection Method
© Danfoss Inc (USCO / mks), 1-2008 USCO.PD.V1.A1.22 / 521U0082 9
Technical leaflet Pulse Motor Expansion Valves, Type KV
PKV-14BS
PKV-18BS
PKV-24BS
PKV-30BS
0.0
5.0[1.42]
10.0[2.84]
15.0[4.27]
20.0[5.69]
25.0[7.11]
30.0[8.53]
kW[U.S.R.T]
0 50 100 150 250 300 350 400 450200
R407C Correction factor tableSuperheat=9˚F
Sub cool[˚F][˚F] [˚F] 0 18 36 54 72 90 108
-58 0.88 1.04 1.20 1.35 1.51 1.66 1.810.90 1.05 1.20 1.35 1.49 1.63 1.770.92 1.06 1.20 1.33 1.47 1.60 1.730.93 1.06 1.19 1.31 1.44 1.57 1.690.93 1.05 1.17 1.29 1.41 1.52 1.64
-40 0.92 1.08 1.24 1.39 1.55 1.70 1.850.94 1.09 1.24 1.38 1.53 1.67 1.810.95 1.09 1.23 1.37 1.50 1.63 1.760.96 1.09 1.22 1.34 1.47 1.59 1.710.96 1.08 1.20 1.31 1.43 1.54 1.66
-22 0.95 1.11 1.27 1.43 1.58 1.73 1.880.97 1.12 1.27 1.41 1.55 1.69 1.830.98 1.12 1.25 1.39 1.52 1.65 1.780.98 1.11 1.24 1.36 1.48 1.60 1.730.97 1.09 1.21 1.32 1.44 1.55 -
-13 0.97 1.13 1.28 1.44 1.59 1.74 1.890.98 1.13 1.28 1.42 1.56 1.70 1.840.99 1.13 1.26 1.39 1.53 1.66 1.790.99 1.12 1.24 1.36 1.48 1.61 -0.98 1.09 1.21 1.32 1.44 1.55 -
-4
122
0.98 1.14 1.29 1.45 1.60 1.74 1.89
113
0.99 1.14 1.28 1.43 1.56 1.70 1.84
104
1.00 1.13 1.27 1.40 1.53 1.66 -
95
0.99 1.12 1.24 1.36 1.48 1.60 - 86
122113104 95
86
122113104 95
86
122113104 95
86
122113104 95 86
0.98 1.09 1.21 1.32 1.43 - -
Pulse
[PKV]
19.1
10.6
Refrigerant : R407CEvaporating temp : 5˚FCondensing temp : 104˚FSub cool : 0˚FSuperheat : 9˚F
Capacity – valve opening graph
Evaporating temp.
Condensingtemp.
Selection Method, continued
10 USCO.PD.V1.A1.22 / 521U0082 © Danfoss Inc (USCO / mks), 1-2008
Technical leaflet Pulse Motor Expansion Valves, Type KV
[˚F] [˚F] 0 18 36 54 72 90 108-76
122
0.87 1.06 1.23 1.40 1.57 1.73 1.89
113
0.91 1.08 1.24 1.40 1.56 1.71 1.86
104
0.94 1.09 1.24 1.39 1.54 1.68 1.820.95 1.10 1.24 1.37 1.51 1.64 1.77
86
95
122113104 95
86
122113104
86
95
122113104 95
86
122113104
95 86
122113104
95 86
122113104
95 86
122113104
95 86
122113104
95 86
122113104
86
95
122113104 95
86
0.96 1.09 1.22 1.35 1.48 1.60 1.72-58 0.91 1.09 1.27 1.44 1.60 1.77 1.93
0.94 1.11 1.27 1.43 1.59 1.74 1.890.97 1.12 1.27 1.42 1.56 1.70 1.840.98 1.12 1.26 1.40 1.53 1.66 1.790.98 1.11 1.24 1.37 1.49 1.62 1.74
-40 0.93 1.12 1.29 1.46 1.63 1.79 1.950.97 1.14 1.30 1.45 1.61 1.76 1.910.99 1.14 1.29 1.44 1.58 1.72 1.861.00 1.14 1.28 1.41 1.54 1.67 1.801.00 1.13 1.25 1.38 1.50 1.62 1.74
-22 0.96 1.14 1.31 1.48 1.64 1.80 1.960.98 1.15 1.31 1.46 1.61 1.76 1.911.00 1.15 1.30 1.44 1.58 1.72 1.851.00 1.14 1.28 1.41 1.54 1.67 1.791.00 1.12 1.25 1.37 1.49 1.61 -
-13 0.96 1.14 1.31 1.48 1.64 1.80 1.950.99 1.15 1.31 1.46 1.61 1.76 1.901.00 1.15 1.29 1.44 1.57 1.71 1.841.00 1.14 1.27 1.40 1.53 1.65 -0.99 1.12 1.24 1.36 1.48 1.59 -
-4 0.96 1.14 1.31 1.48 1.64 1.79 1.950.99 1.15 1.31 1.46 1.60 1.75 1.891.00 1.15 1.29 1.43 1.56 1.70 -1.00 1.13 1.26 1.39 1.51 1.64 -0.98 1.10 1.22 1.34 1.46 - -
5 0.96 1.14 1.31 1.47 1.63 1.78 1.930.98 1.14 1.30 1.45 1.59 1.73 -0.99 1.14 1.28 1.41 1.55 1.68 -0.98 1.12 1.24 1.37 1.49 - -0.97 1.09 1.20 1.32 1.43 - -0.96 1.14 1.30 1.46 1.61 1.77 -0.98 1.13 1.28 1.43 1.57 1.71 -0.98 1.12 1.26 1.39 1.52 - -0.97 1.10 1.22 1.34 1.46 - -0.94 1.06 1.17 1.28 - - -0.95 1.12 1.29 1.44 1.59 1.74 -0.96 1.12 1.26 1.41 1.55 - -0.96 1.10 1.23 1.36 1.49 - -0.94 1.07 1.19 1.31 - - -0.92 1.03 1.13 1.24 - - -
32
23
0.94 1.11 1.27 1.42 1.57 - -0.95 1.10 1.24 1.38 1.51 - -0.94 1.07 1.20 1.32 - - -0.91 1.03 1.15 1.26 - - -0.88 0.98 1.09 - - - -
41 0.92 1.08 1.24 1.38 1.53 - -0.92 1.07 1.20 1.34 - - -0.91 1.03 1.16 1.28 - - -0.87 0.99 1.10 - - - -0.83 0.93 1.02 - - - -
0.0
10.0(2.84)
20.0(5.69)
30.0(8.53)
[kW]([U.S.R.T])
0 50 100 150 200 250 300 350 400 450[Pulse]
SKV-16D46
SKV-18D49
VKV-20D32
VKV-25D34
VKV-30D36
VKV-32D38
Refrigerant : R410AEvaporating temp. : -13˚FCondensing temp. : 104˚FSub cool : 0˚FSuperheat : 9˚F
R410A Correction factor tableSuperheat=9˚F
Sub cool[˚F]Evaporating temp.
Condensingtemp.
14
Capacity - R410A
© Danfoss Inc (USCO / mks), 1-2008 USCO.PD.V1.A1.22 / 521U0082 11
Technical leaflet Pulse Motor Expansion Valves, Type KV
Maximum working pressure: 2175 psi (15 MPa) Ambient temperature: -22 to 158oF (-30 to 70oC) Fluid temperature: -22 to 148oF (-30 to 70oC)Ambient humidity 95% RH or less
Modulation: Permanent magnet type direct operating stepper motorExcitation method: 1-2 phaseExcitation speed: 31.3 pps +10% Operating range: 0 to 480 pulsesIntialization: Phase A COM (+)
CO2 Application Specifications
Motor and Drive Specifications
0.18
Catalog No.PortSize
( inch)
CapacitykW U.S.R.T.
Connection (Solder)(inch)
Operating PressureDifferential, B to A
psi MPa
Wt.(kg)
R744 B side A side
0.25 OD 0.25 OD 0 to 1450 0 to 10
Valve shut press.on, A to B
flow directionflow direction(MPa) psi
Capacity: Based on inlet temp.=100°F[38˚C], ET=41°F[5˚F],inlet pressure=1378psi[9.5MPa] andSH=0°K[0°C]
*1
*1*1 *2
5.951.69UKV–J14D 0.06
UKV-J
0.26A / Phase Current (at 68˚F[20˚C])12V DC ±10%Rated voltage
Type
46 ± 3 Ω(at 68˚F[20˚C])
Direct current resistance
IP66Enclosure
Class E MoldedInsulation class
239˚F[115˚C] or less by rated voltage, temperature - resistance method. Max. coil temperature
Valve Specifications
Coil Specifications
B Side Conn.
A Side Conn.
*1
*1 Refer to the following fig. *2 Weight includes a coil.
B to A flow direction
A to B flow direction
Hot water storage unit side
Relief valveType VSV/WSV
Pressure reducing valveType CRV
Hydrothermal exchanger
Air heatexchanger
Tank
Comp.
DefrostSolenoid valve
Pressure control
Type CCBType HPV
Motorizedcontrol valve
Type UKV-J
Heat pump unit side
Mixing valve
WaterSupply
Hot Water Supply
Pump
Hot water irrigation
Waterirrigation
Application ExamplesCO2 Hot Water Supply Unit
12 USCO.PD.V1.A1.22 / 521U0082 © Danfoss Inc (USCO / mks), 1-2008
Technical leaflet Pulse Motor Expansion Valves, Type KV
DimensionsUnit: inch[mm]
1.50[38]
1.89[ 48]
[ 7.94±0.1 t=0.8] 0.31±0.004 t=0.031
1.39
±0.
08[4
9±2]
4.06
±0.
12[1
03±
2]7.94
±0.
1 t=
0.8
2.44±0.08[62±2]
Conn.
Conn.A Side
B Side
0.
31±
0.00
4
t=
0.03
1
Type SKV
[ 1
5.88
±0.1
5 t=
1.2]
Conn.
[( 67)]( 2.64)
(2.5
8)[(6
5.5)
]
(2.54)[(64.5)](5
.91)
[(150
)]
Conn.
A side
B side
[ 15.88±0.15 t=1.2] 0.63±0.006 t=0.047
0.
63±0
.006
t=0.
047
Type AKV
1.46 [37]
1.89
Conn.
2.52±0.08[64±2]
1.93
±0.0
8[49
±2]
4.41
±0.1
2[11
2±3]
Conn.B side
A side
[ 48]
[ 7
.94±
0.1
t=0.
8]
0.
31±0
.004
t=0.
031
[ 7.94±0.1 t=0.8]
0.31±0.004 t=0.031
Type VKV-20D to 30D Type VKV-32D
1.46[37]
1.89
Conn.
2.60±0.08[66±2]
2.52
±0.0
8[64
±2]
5.12
±0.1
2[13
0±3]Conn.
[ 12.7±0.15 t=0.8]
[ 9
.52±
0.15
t=0.
8]
[ 48]
A side
B side
0.5±0.006 t=0.031
0.37
±0.0
06 t
=0.0
31
Inlet
Flow direction
Outlet
1.18[30]0.71[85]
( 2.17)[( 55)]
(3.6
2)[(9
2)]
19.6
9[50
0]
5/8 - 18UNF 5/8 - 18UNF
Type PKV-14BS to 24BS Type PKV-30BS
Inlet
Flow direction
M14×1
Outlet
1.42 [ 36]
( 2.17)[( 55)]
(4.1
3)[(1
05)]
19.6
9[50
0]
3.82[97]
5/8 - 18UNF 3/4 - 16UNF
0.25
0±0.
039
t=
0.04
7
1.54 [39]
1.85±0.079[47±2]
Conn.
Conn.
B side
A side
1.97
±0.0
79[5
0±2]
(3.9
0)[(9
9)]
[6.35±0.1 t=1.2]
[6.3
5±0.
1 t=
1.2]
1.28[32.5]
0.250±0.039 t=0.047
Type UKV Type UKV-J
Danfoss, Refrigeration & Air-Conditioning Division, 7941 Corporate Drive, Baltimore, MD 21236 Tel. 410-931-8250, Fax 410-931-8256, www.danfoss.us
1.97
±0.0
79[5
0±2]
(3.8
8)[(9
8.6)
]
1.85±0.079[47±2]
A
B
(1.85)[(47)]
Conn.
Conn. Catalog No. A B
UKV–18D 0.250±0.039 t=0.028[ 6.35±0.1 t=0.7]
UKV–30D
UKV–25D
(1.6
9)[(4
3)]
(1.2
6)[(3
2)]
B side
A side
[ 7.94±0.1 t=0.8]0.313±0.039 t=0.031
1.97
±0.0
79[5
0±2]
(3.8
8)[(9
8.6)
]
1.85±0.079[47±2]
A
B
(1.85)[(47)]
Conn.
Conn. Catalog No. A B
UKV–18D 0.250±0.039 t=0.028[ 6.35±0.1 t=0.7]
UKV–30D
UKV–25D
(1.6
9)[(4
3)]
(1.2
6)[(3
2)]
B side
A side
[ 7.94±0.1 t=0.8]0.313±0.039 t=0.031