Danfoss AKV 15, AKV 20 Data sheet

Data Sheet

Electric expansion valve
Type AKV 15 and AKV 20

For liquid injection into evaporators

AKV are electrically operated expansion valves
designed for refrigerating plants.

The AKV valves are normally controlled by a
controller from Danfoss’ range of ADAP- KOOL
controllers.

The AKV valves are supplied as a component
programme, as follows:

• Separate valve

• Separate coil with terminal box or cable

• Spare parts in the form upper part, orice and

lter

Valve capacity is indicated with a number
forming part of the type designation. The
number represents the size of the orice of the
valve in question. A valve with orice 3 will for
example be designated AKV 15-3. The orice
assembly is replaceable.

Features:

• Refrigerants: R134a, R22, R23, R404A, R407A,
R407C, R407F, R407H, R410A, R422B, R422D,
R438A, R448A, R449A, R449B, R450A, R452A,
R463A, R507, R513A, R513B, R515A, R515B,
R744.

• For a complete list of approved refrigerants,
visit https://store.danfoss.com/ and search for
individual code numbers, where refrigerants
are listed as part of technical data.

• The valve requires no adjustment

• Wide regulation range Replaceable orice
assembly

• Both expansion valve and solenoid valve

• Wide range of AC and DC coils

®

AI251586497622en-001301

AK-CC 550 case controller

AK-CC 750 case controller

EKC 315A superheat controller

DML/DMSC Eliminator® hermetic l‐

ter drier

Electric expansion valve, Type AKV 15 and AKV 20

Portfolio overview

Related products

Table 1: Portfolio overview

© Danfoss | Climate Solutions | 2021.05 AI251586497622en-001301 | 2

0

6

12

18

Electric expansion valve, Type AKV 15 and AKV 20

Function

Figure 1: Function

The valve capacity is regulated by means of pulse-width modulation. Within a period of six seconds a voltage signal
from the controller will be transmitted to and removed from the valve coil. This makes the valve open and close for
the ow of refrigerant.

The relation between this opening and closing time indicates the actual capacity. If there is an intense need for
refrigeration, the valve will remain open for almost all six seconds of the period. If the required amount of
refrigeration is modest, the valve will only stay open during a fraction of the period.

The amount of refrigeration needed is determined by the controller. When no refrigeration is required, the valve will
remain closed and thus function as a solenoid valve.

© Danfoss | Climate Solutions | 2021.05 AI251586497622en-001301 | 3

Valve type

AKV 15

AKV 20

Tolerance of coil voltage (coil dependent)

10 / - 15%

10 / - 15%

Enclosure to IEC 529

Max. IP67

Max. IP67

Working principle

Pulse Width Modulation (PWM)

Recommended period of time

6 sec.

6 sec.

Capacity (R404A/R507)

14 – 85 kW / 3.98 – 24.17 ton

56 – 530 kW / 15.92 – 150.70 ton

Regulation range (Capacity range)

10 – 100%

10 – 100%

Connection

Solder

Solder or weld

Evaporating temperature

- 50 – 60 °C / -58 – 140 °F

- 40 – 60 °C / -104 – 140 °F

Ambient temperature (coil dependent)

- 40 – 50 °C / -104 – 122 °F

- 40 – 50 °C / -104 – 122 °F

MOPD (Max. Opening Pressure Dierential)

22 bar / 319 psig

18 bar / 261 psig

Filter, replaceable

External 100 μm

External 100 μm

Max. working pressure

AKV 15-1 – 15-4: 46 barg / 667 psig

AKV 20-1 – 20-5: 28 barg / 406 psig

.FW

Valve

type

Rated capacity

(1)

kv val‐
ue[m3/h]

Connections Solder ODF

R22

R134a

R407C

R404A/ R507

R407A

R410A

R744

Inlet ×

out‐

let[in]

Inlet ×

outlet

[mm]

Multipack

Code no.

[kW]

[TR]

[kW]

[TR]

[kW]

[TR]

[kW]

[TR]

[kW]

[TR]

[kW]

[TR]

[kW]

[TR]

AKV 15-1

25.7

7.3

19.9

5.66

27.1

7.72

18.1

5.14

25.4

7.23

30.1

8.56

32.7

9.3

0.25

¾ × ¾-068F5000

25.7

7.3

19.9

5.66

27.1

7.72

18.1

5.14

25.4

7.23

30.1

8.56

32.7

9.3

0.25

-

18 ×

18

068F5001

25.7

7.3

19.9

5.66

27.1

7.72

18.1

5.14

25.4

7.23

30.1

8.56

32.7

9.3

0.25

¾ × ¾-068F5035

(2)

AKV 15-2

41.1

11.7

31.8

9.03

43.3

12.3

28.9

8.23

40.6

11.6

48.1

13.7

52.4

14.9

0.4

¾ × ¾-068F5005

41.1

11.7

31.8

9.03

43.3

12.3

28.9

8.23

40.6

11.6

48.1

13.7

52.4

14.9

0.4

-

18 ×

18

068F5006

41.1

11.7

31.8

9.03

43.3

12.3

28.9

8.23

40.6

11.6

48.1

13.7

52.4

14.9

0.4

¾ × ¾-068F5036

(2)

AKV 15-3

64.5

18.3

49.9

14.1

68.1

19.4

45.4

12.9

63.8

18.1

75.7

21.5

82.6

23.5

0.63

⁷⁄₈ × ⁷⁄₈-068F5010

64.5

18.3

49.9

14.1

68.1

19.4

45.4

12.9

63.8

18.1

75.7

21.5

82.6

23.5

0.63

⁷⁄₈ × ⁷⁄₈-068F5037

(2)

AKV 15-4

1022978.6

22.3

107

30.5

71.9

20.5

101

28.6

120

34.1

131

37.2

1

1

1

⁄8 ×

1

1

⁄8

-

068F5015

1022978.6

22.3

107

30.5

71.9

20.5

101

28.6

120

34.1

131

37.21-

28 ×

28

068F5016

1022978.6

22.3

107

30.5

71.9

20.5

101

28.6

120

34.1

131

37.2

1

1

1

⁄8 ×

1

1

⁄8

-

068F5038

(2)

Electric expansion valve, Type AKV 15 and AKV 20

Product specication

Technical data

Table 2: Technical data

Filter

Figure 2: Filter

On plants using AKV 15 or AKV 20 a lter must be mounted in front of AKV 15 and AKV 20.

Capacity

Table 3: AKV 15

© Danfoss | Climate Solutions | 2021.05 AI251586497622en-001301 | 4