Danfoss EVR 2, EVR 8, EVRH 10, EVRH 40, R 410A Data sheet

Data sheet

Solenoid valves for R 410A and R744 (CO2)
EVR 2 to EVR 8 and EVRH 10 to EVRH 40

EVR 2 and EVR 3 (direct operated) and EVR 4 to
EVR 8 / EVRH 10 to EVRH 40 (servo-operated) are
high pressure solenoid valves specially designed
to meet the requirements of high pressure
refrigerants such as R410A and R744 (CO2).
The EVRH valve can be used for liquid, suction
and hot gas lines.

Features • Normally Closed and Normally Open

• Coils for AC and DC voltages

• Suitable for R410A and R744 (CO2)

• Media temperatures up to 221°F

• Design pressure 655 psig

© Danfoss | DCS (rja) | 2017.03

• MOPD up to 350 psi

• Solder connections up to 7/8 inch

• Extended soldering ends

• Solders without dismantling the valve

DKRCC.PD.B00.C3.22 | 1

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Approvals

Technical data

The Low Voltage Directive (LVD) 2014/35/EU with
amendments EN 60730-2-8.

Listed

Temperature of medium

-40 – 105 °C for 10 or 12 W coil
Max. 130 °C during defrost

-40 – 80 °C for 20 W coil

Opening dierential pressure Δp [psig]

Type

Min. ODP

EVR 2 0 350 260 0.19
EVR 3 0 300 260 0.32
EVR 4 0.7 300 260 0.7
EVR 6 0.7 300 260 0.92
EVR 6 NO 0.7 300 300 0.92
EVR 8 0.7 300 260 1.3
EVRH 10 0.7 300 260 2.2
EVRH 15 0.7 300 260 3.0
EVRH 20 0.7 300 190 5.8
EVRH 22 0.7 300 190 6.9
EVRH 25 1.0 300 260 12
EVRH 32 1.0 300 260 18
EVRH 40 1.0 300 260 29

(with standard coil)

14 – 17 W AC 20 W DC

Refrigerants

R744, R22/R407C, R404A/R507, R410A,
R134a, R407A, R23, R744.
For other refrigerants, please contact Danfoss.

Note: EVR 2 – EVR 3 and EVRH 25 – EVRH 40 are not suitable for
R744 (CO2)applications with media temperatures constantly below
0 °C.
For other media temperatures, please contact Danfoss.

MOPD

Cv value

[gal/min]

© Danfoss | DCS (rja) | 2017.03

DKRCC.PD.B00.C3.22 | 2

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Ordering Solenoid valve – Normally Closed (NC) – Soldering ODF without coil

EVR / EVRH Valves

1)

Type Coil type Connection size [in.] Code no.

EVR 2 AC/DC 1/4

EVR 3

EVR 4

AC/DC 1/4
AC/DC 3/8
AC/DC 3/8
AC/DC 1/2
AC/DC 3/8

EVR 6

AC/DC 1/2
AC/DC 5/8

EVR 8

AC/DC 1/2

AC/DC 5/8
EVRH 10 AC/DC 1/2
EVRH 15 AC/DC 5/8
EVRH 20 AC 7/8
EVRH 25 AC/DC 1 1/8

1)

EVRH 32

AC/DC –
EVRH 40 AC/DC 1 5/8

Only available with mm connections

Solenoid valve – Normally Open (NO)

Type Coil type Connection size [in.] Code no.

EVR 6 AC/DC 3/8

EVRH 10 AC/DC 1/2

032F7100
032F7105
032F1157
032F7110
032F7111
032F7115
032F1162
032F7117
032F7121

032F7122
032G1077
032G1078
032G1079
032G1059
032G1081
032G1062

032F1164

032F1329

BJ and BX Coils

Wire length

Coil type

Voltage

[V AC]

Frequency

[Hz]

Junction box NEMA 2

BJ024CS 7 18 24 50 / 60 14

BJ120CS 7 18

BJ240CS 7 18

110 – 120

110

208 – 240

230

60
50

60
50

BJ120BS 7 18 120 60 16

BJ208BS 7 18 208 60 16

BJ240BS 7 18 240 60 16

Conduit boss NEMA 4

BX024CS 18 46 24 50 / 60 14

BX024CS 71 180 24 50 / 60 14

BX024CS 98 250 24 50 / 60 14

BX120CS 18 46

BX120CS 36 91

BX120CS 71 180

110 – 120

110

60
50

BX120CS 98 250

BX240CS 18 46

BX240CS 98 250

208 – 240

230

60
50

BX120BS 98 250 120 60 16

BX208BS 98 250 208 60 16

BX240BS 98 250 240 60 16

Power

consumption

[W] Code no.[in] [cm]

15
16

14
17

15
16

14
17

018F4100

018F4110

018F4120

018F4130

018F4132

018F4134

018F4102

018F4103

018F4104

018F4112

018F4113

018F4114

018F4115

018F4122

018F4123

018F4131

018F4133

018F4135

Technical data

© Danfoss | DCS (rja) | 2017.03

Design

In accordance with UL 429

Power supply

Alternating current (AC)

Permissible voltage variation

Alternating current (AC):
50 Hz and 60 Hz: -10% – 15%
50/60 Hz: ± 10%

Power consumption

Alternating current (AC): Inrush: 49 VA;
Holding: 28 VA, 14 – 17 W

Insulation of coil wire

Class H according to IEC 85

Connection

Junction box or Conduit boss

Enclosure, IEC 60529

Junction box NEMA 2 ~ IP 12–32
Conduit boss NEMA 4 ~ IP 54

Ambient temperature

-40 °F – 122 °F (-40 °C – 50 °C)

DKRCC.PD.B00.C3.22 | 3

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Capacity, R410A
Liquid capacity

Type

EVR 2 0.56 0.78 0.96 1.1 1.23 1.35 1.46
EVR 3 0.98 1.37 1.68 1.93 2.15 2.36 2.55
EVR 4 2.12 2.98 3.65 4.2 4.69 5.14 5.55
EVR 6 2.79 3.92 4.8 5.52 6.16 6.75 7.3

EVR 8 3.94 5.54 6.78 7.8 8.7 9.54 10.3
EVRH 10 6.63 9.31 11.4 13.1 14.6 16 17.3
EVRH 15 9.07 12.7 15.6 17.9 20 21.9 23.7
EVRH 20 17.5 24.5 30 34.5 38.5 42.2 46.6
EVRH 22 20.82 29.4 36 41.4 46.2 50.6 54.8
EVRH 25 33.65 47.59 58.29 67.31 75.25 82.44 89.04
EVRH 32 53.85 76.15 93.27 107.69 120.41 131.90 142.47
EVRH 40 84.14 118.99 145.73 168.27 188.13 206.09 222.60

1 2 3 4 5 6 7

Liquid capacity Q0 tons at pressure drop across valve p psi

Capacities are based on:
liquid temperature tl = 100 °F

Evaporating temperature te = 40 °F
Superheat 10 °F

Capacity, R410A
Suction vapour capacity

Type

EVR 2

EVR 3

EVR 4

EVR 6

EVR 8

EVRH 10

EVRH 15

EVRH 20

EVRH 22

EVRH 25

EVRH 32

EVRH 40

Note: Bold gures refer to rated capacity

Pressure

drop Δp [psi]

1 0.04 0.05 0.07 0.07 0.08 0.09 0.10 0.11
2 0.06 0.07 0.09 0.11 0.12 0.13 0.14 0.16
3 0.07 0.09 0.12 0.13 0.14 0.16 0.18 0.19
1 0.07 0.09 0.12 0.13 0.14 0.16 0.18 0.20
2 0.10 0.13 0.16 0.18 0.21 0.23 0.25 0.28
3 0.12 0.16 0.20 0.23 0.25 0.28 0.31 0.34
1 0.15 0.20 0.25 0.28 0.31 0.35 0.39 0.43
2 0.22 0.28 0.36 0.40 0.45 0.49 0.55 0.60
3 0.27 0.35 0.44 0.49 0.55 0.61 0.67 0.74
1 0.20 0.26 0.33 0.37 0.41 0.46 0.51 0.56
2 0.29 0.37 0.47 0.53 0.59 0.65 0.72 0.79
3 0.35 0.46 0.58 0.65 0.72 0.80 0.88 0.97
1 0.28 0.36 0.46 0.52 0.57 0.64 0.71 0.78
2 0.41 0.52 0.66 0.74 0.82 0.91 1.01 1.10
3 0.49 0.64 0.81 0.91 1.01 1.12 1.23 1.36
1 0.48 0.62 0.79 0.89 0.98 1.09 1.20 1.33
2 0.68 0.88 1.12 1.25 1.39 1.54 1.70 1.87
3 0.84 1.08 1.37 1.54 1.71 1.89 2.09 2.30
1 0.66 0.85 1.09 1.21 1.35 1.50 1.65 1.81
2 0.93 1.21 1.53 1.72 1.91 2.11 2.33 2.56
3 1.14 1.48 1.88 2.10 2.33 2.59 2.85 3.14
1 1.27 1.64 2.09 2.33 2.59 2.88 3.17 3.49
2 1.79 2.32 2.95 3.30 3.67 4.06 4.48 4.93
3 2.20 2.85 3.61 4.04 4.49 4.98 5.49 6.04
1 1.51 1.95 2.49 2.77 3.08 3.43 3.77 4.15
2 2.13 2.76 3.51 3.93 4.37 4.83 5.33 5.87
3 2.62 3.39 4.29 4.81 5.34 5.92 6.53 7.19
1 2.46 3.23 4.13 4.63 5.16 5.72 6.33 6.96
2 3.39 4.50 5.78 6.49 7.25 8.05 8.91 9.82
3 4.04 5.42 7.01 7.89 8.82 9.81 10.87 11.98
1 3.93 5.17 6.61 7.40 8.25 9.16 10.12 11.14
2 5.42 7.20 9.25 10.39 11.60 12.89 14.26 15.70
3 6.46 8.68 11.22 12.62 14.11 15.70 17.38 19.17
1 6.15 8.08 10.32 11.57 12.90 14.31 15.82 17.41
2 8.47 11.25 14.45 16.23 18.12 20.14 22.27 24.54
3 10.09 13.56 17.53 19.72 22.05 24.53 27.16 29.95

Suction vapour capacity Q0 tons at evaporating temperature te °F

-40 -20 0 10 20 30 40 50

© Danfoss | DCS (rja) | 2017.03

The table values refer to evaporator capacity
and are given as a function of evaporating
temperature te and pressure drop ∆p across the
valve. Capacities are based on liquid temperature
tl = 100 °F ahead of the expansion valve and
superheat ts = 7 °F. For each additional 10 °F of
superheat, the table capacities must be reduced
by 2%.

Correction factors for liquid temperature t

l

When liquid temperature tl ahead of the
expansion valve is other than 100°F, adjust
the table capacities by multiplying them by
the appropriate correction factor found in the
following table:

tl˚F 80 90 100 110 120
Factor 1.10 1.05 1.00 0.95 0.90

DKRCC.PD.B00.C3.22 | 4

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Capacity R410A
Hot gas capacity

Type

EVR 2

EVR 3

EVR 4

EVR 6

EVR 8

EVRH 10

EVRH 15

EVRH 20

EVRH 22

EVRH 25

EVRH 32

EVRH 40

Pressure drop

p [psi]

2 0.19 0.20

5 0.30 0.31
10 0.42 0.44
15 0.52 0.54
20 0.60 0.62
25 0.67 0.69

2 0.33 0.34

5 0.52 0.54
10 0.74 0.76
15 0.90 0.94
20 1.04 1.08
25 1.16 1.21

2 0.72 0.75

5 1.13 1.17
10 1.61 1.65
15 1.97 2.02
20 2.27 2.33
25 2.54 2.60

2 0.94 0.98

5 1.49 1.55
10 2.11 2.19
15 2.59 2.68
20 2.98 3.10
25 3.34 3.46

2 1.31 1.37

5 2.08 2.17
10 2.95 3.06
15 3.62 3.75
20 4.17 4.33
25 4.67 4.84

2 2.24 2.33

5 3.54 3.68
10 5.02 5.20
15 6.14 6.36
20 7.08 7.36
25 7.92 8.22

2 3.07 3.18

5 4.85 5.03
10 6.86 7.11
15 8.40 8.70
20 9.69 10.00
25 10.8 11.2

2 5.90 6.12

5 9.32 9.68
10 13.2 13.7
15 16.1 16.7
20 18.6 19.3
25 20.8 21.6

2 7.02 7.28

5 11.1 11.5
10 15.7 16.3
15 19.2 19.9
20 22.1 23.0
25 24.7 25.7

2 12.95 13.91

5 20.32 21.89
10 28.34 30.70
15 34.22 37.28
20 38.94 42.68
25 42.88 47.30

2 20.73 22.26

5 32.51 35.02
10 45.34 49.12
15 54.75 59.65
20 62.30 68.29
25 68.61 75.68

2 32.39 34.78

5 50.79 54.72
10 70.85 76.75
15 85.54 93.20
20 97.34 106.70
25 107.21 118.25

Hot gas capacity Qh tons at evaporating temp. te=40 °F.

hotgas temp. th=tc+40 °F. subcooling tu=10 °F

Condensing temperature tc °F

70 100

© Danfoss | DCS (rja) | 2017.03

DKRCC.PD.B00.C3.22 | 5

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Hot gas capacity values in the table are given
as a function of condensing temperature tc and
pressure drop across the valve ∆p.
Capacities are based on gas superheated 40 °F
above condensing temperature,
(th= tc + 40 °F)
For each additional 10 °F of superheat above
40 °F, the table capacities must be reduced by
1%.
In a hot gas defrost circuit, evaporator
temperature aects valve capacity.

When the evaporator temperature diers from
40 °F, adjust the table capacities by multiplying
them by applying a correction factor from the
following table.

Correction factors for th and t

tl˚F -40 -20 0 20 40 50
Factor 1.18 1.14 1.09 1.04 1 0.97

Note: The MOPD is depending on the choise of coil, please refer
to page 4.

c

© Danfoss | DCS (rja) | 2017.03

DKRCC.PD.B00.C3.22 | 6

Danfoss

32F9024.10

4

16

18

45

49

83

90

20

40

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Capacity R744 (CO2) With CO

Design and Function

4. Coil

16. Armature

18. Valve plate/ Pilot valve plate

20. Ground terminal

28. Gasket

29. Pilot orice

40. Protective cap, Junction box

43. Valve cover

45. Valve cover gasket

49. Valve body

73. Equalization port

80. Diaphragm and servo piston

83. Valve seat

90. Mounting hole

© Danfoss | DCS (rja) | 2017.03

EVRH valves can only be used in

2

subcritical applications.
For CO

capacity tables, refer to Cool selector® or

2

contact your local Danfoss oce.

Direct operated
EVR 2 and EVR 3

EVRH solenoid valves are designed on two
dierent principles:

1. Direct operation

2. Servo operation

1. Direct operation

EVR 2 and EVR 3 are direct operated. The valves
open directly for full ow when the armature (16)
moves up into the magnetic eld of the coil. This
means that the valves operate with a min.
dierential pressure of 0 bar. The valve plate (18)
is tted directly on the armature (16). Inlet
pressure acts from above on the armature and
the valve plate. Thus, inlet pressure, and spring
force act to close the valve when the coil is
currentless.

2. Servo operation

EVR 4 to EVR 8 and EVRH 10 – EVRH 20 are servo
operated with a “oating” diaphragm (80). The
pilot orice (29) is placed in the centre of the
diaphragm. The pilot valve plate (18) is tted
direct to the armature (16). When the coil is
currentless, the main orice and pilot orice are
closed. The pilot orice and main orice are held
closed by the armature spring force and the
dierential pressure between inlet and outlet
sides. When current is applied to the coil the
armature is drawn up into the magnetic eld and
opens the pilot orice. This relieves the pressure
above the diaphragm, i.e. the space above the
diaphragm becomes connected to the outlet
side of thevalve.

Note: EVR 2-3 and EVRH 25-40 are not suitable for R744 (CO2)
applications with media temperatures constantly below 0 °C.
For other media temperatures, please contact Danfoss.

40

20

4

16
18
29

45

43

73
83

80

90

49

Danfoss

32F9025.10

Servo operated

EVR 4 to EVR 8 and EVRH 10 to EVRH 40

The dierential pressure between inlet and
outlet sides then presses the diaphragm away
from the main orice and opens it for full ow.
Therefore a certain minimum dierential
pressure is necessary to open the valve and
keep it open. For EVR 4 to EVR 8 and EVRH 10
– EVRH 20 valves this dierential pressure is

0.05 bar. When current is switched o, the pilot
orice closes. Via the equalization holes (73) in
the diaphragm, the pressure above the
diaphragm then rises to the same value as the
inlet pressure and the diaphragm closes the
main orice.
EVRH 25 – EVRH 40 are servo operated piston
valves. The valves are closed with currentless
coil. The servo piston (80) with main valve plate
(84) closes against the valve seat (83) by means
of the dierential pressure between inlet and
outlet side of the valve and the force of the
compression spring (76).
When current to the coil is switched on, the
pilot orice (29) opens. This relieves the
pressure on the piston spring side of the valve.
The dierential pressure will then open the
valve. The minimum dierential pressure
needed for full opening of the valves is 0.2 bar.

DKRCC.PD.B00.C3.22 | 7

32F665.10.20FW

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Material specications

EVR 2 – EVR 8 and EVRH 10 – EVRH 25

3
8
2
5
1
7

Danfoss

© Danfoss | DCS (rja) | 2017.03

No. Description Material

1 Valve body Brass

2 Cover

3 Armature tube Stainless steel

4 Armature tube nut Stainless steel

5 Gasket Rubber

6 Gasket Al. gasket

7 Solder tube Copper

8 Screws Stainless steel

9 Spindle for man. operat. Stainless steel

10 Gasket Rubber

Stainless steel

Brass

Cast iron

DKRCC.PD.B00.C3.22 | 8

32G1062 FW

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Material specications

(continued)

EVRH 32 – EVRH 40

57 4

3

6

2

8

1

No. Description Material

1 Valve body Cast Iron

2 Cover Brass

3 Armature tube Stainless steel

4 Armature tube nut Stainless steel

5 Gasket Rubber

6 Gasket Al. gasket

7 Solder tube Bi-metallic tube

8 Screws Stainless steel

Danfoss

© Danfoss | DCS (rja) | 2017.03

DKRCC.PD.B00.C3.22 | 9

Data sheet | Solenoid valves for R410A and R744 (CO2), EVR 2 to EVR 8, EVRH 10 to EVRH 40

Dimensions and weight

EVR 2 – 6 and EVRH 10 – 20

Danfoss

EVRH 25

EVRH 32

Danfoss

Danfoss

© Danfoss | DCS (rja) | 2017.03

DKRCC.PD.B00.C3.22 | 10

EVRH 40

EVRH 25, EVRH 32 – 40, solder connection

Danfoss

Type

connection

[in]

Solder

EVR 2 1⁄4 lbs

EVR 3

EVR 4

EVR 6

1

3⁄8

3

1⁄2
3⁄8

1

⁄4

⁄8

⁄2

5⁄8

EVR 8

1⁄2

5⁄8
EVRH 10 1⁄2 5⁄8 3
EVRH 15 5⁄8
EVRH 18 –
EVRH 20 7⁄8
EVRH 22

7

⁄8 25⁄32 3 7⁄16 – 7 1⁄2 5⁄8 2 13⁄16 –
EVRH 25 1 1⁄8 – 5 1⁄8 1 1⁄2 8 1⁄8
EVRH 32 – – 1 1⁄16 2 9 1⁄2

H1

[in]

9

⁄16 2 1⁄2 5⁄16 4

9

⁄16 2 1⁄2 5⁄16 4 9⁄32 1 5⁄16 0.44

9

⁄16 2 1⁄2 5⁄16 4 5⁄8

9

⁄16 2 3⁄4

9

⁄16 2 3⁄4

9

⁄16 2 3⁄4

9

⁄16 2 3⁄4

9

⁄16 2 3⁄4

9

⁄16 2 3⁄4

9

⁄16 2 3⁄4 3⁄8 6

3

⁄4 3 1⁄4 – 6 15⁄16 1⁄2 2 3⁄16 1.76

3

⁄4 3 1⁄4 – – – 2 3⁄16 –

25

⁄32 3 7⁄16 – 7 1⁄2 5⁄8 2 13⁄16 2.20

H

[in]

2

H

3

[in]

3

⁄8 4 1⁄4 5⁄16 1 5⁄16 –

3

⁄8 5 3⁄8 1 5⁄16 –

3

⁄8 4 1⁄4 5⁄16 1 5⁄16 0.66

3

⁄8 5

3

⁄8 6

3

⁄8 5

7

⁄16 5

L

[in]

L2

[in]

9

⁄32 1 5⁄16 0.44

5

⁄16 1 5⁄16 0.44

3

⁄8 1 5⁄16 0.66

1

⁄2 1 5⁄16 0.66

3

⁄8 1 5⁄16 –

1

⁄2 1 5⁄16 –

3

⁄8 1 13⁄16 1.10

7

⁄8 3 3⁄4 3.0

11

⁄16 3 1⁄8 4.3

B

[in]

EVRH 40 1 5⁄8 – 1 1⁄16 2 1⁄16 10 1⁄4 1 1⁄8 3 1⁄8 4.3

Net weight of coil: 0.67 lbs

Weight

[lbs]

© Danfoss | DCS (rja) | 2017.03 DKRCC.PD.B00.C3.22 | 11