Danfoss EV220BW, EV228BW Data sheet

Data Sheet

Solenoid valve Type EV220BW and EV228BW

Indirect servo operated valves for drinking water

Solenoid valve range with drinking water approvals

• For water supply

• Houses and large apartments ◦ Kitchen and bathrooms

• Commercial buildings

• Industrial buildings

• Zoning

• Laundry

• Diswashing

• Main inlet valves

• Machines and food processing

Features

• Clip-on coil

• Ambient temperature: Up to 70 °C

• Coil enclosure: Up to IP67

• Water hammer damped

• Built-in lter

• Body material in Eco brass (Lead free < 0,1 %)

or Stainless steel

• New generation EPDM sealings

recommended for drinking water

AI266333732850en-000501

Features

EV220BW

EV228BW

Body material

Eco brass

Stainless steel

Eco brass

Stainless steel

DN [mm]

15-25

15-50

15-25

15-50

Connection

G1/2'' - G1''

G1/2'' - G2''

G1/2'' - G1''

G1/2'' - G2''

Sealing material

EPDM

Function

NC/NO

NC/NOUNUN

Kv [m3/h]

4-11

4-40

4-11

4-40

Dierential pressure range [bar]

0.3-10

Temperature range [°C]

0-90

0-70

Solenoid valve, Types EV220BW and EV228BW

1 Portfolio overview

Table 1: Portfolio overview

7

1.2.3.4.5.6.7.

Coil

Armature spring

Valve plate

Pilot orice

Diaphragm

Main orice

Equalizing orice

Solenoid valve, Types EV220BW and EV228BW

2 Functions

2.1 Function, NC

Coil voltage disconnected (closed)

When the voltage is disconnected, the valve plate (3) is pressed down against the pilot orice (4) by the armature spring (2). The pressure across the diaphragm (5) is built up via the equalizing orice (7). The diaphragm closes the main orice (6) as soon as the pressure across the diaphragm is equivalent to the inlet pressure. The valve will be closed for as long as the voltage to the coil is disconnected.

Coil voltage connected (open)

When voltage is applied to the coil (1), the pilot orice (4) is opened. As the pilot orice is larger than the equalizing orice (7), the pressure across the diaphragm (5) drops and therefore it is lifted clear of the main orice (6). The valve

is now open for unimpeded ow and will be open for as long as the minimum dierential pressure across the valve is maintained, and for as long as there is voltage to the coil.

Figure 1: Function, NC

2.2 Function, NO

Coil voltage disconnected (open)

When the voltage to the coil (1) is disconnected, the pilot orice (4) is open. As the pilot orice is larger than the equalizing orice (7), the pressure across the diaphragm (5) drops and therefore it is lifted clear of the main orice (6). The valve will be open for as long as the minimum dierential pressure across the valve is maintained, and for as long as the voltage to the coil is disconnected.

Coil voltage connected (closed)

When voltage is applied to the coil, the valve plate (3) is pressed down against the pilot orice (4). The pressure across the diaphragm (5) is built up via the equalizing orice (7). The diaphragm closes the main orice (6) as soon as the pressure across the diaphragm is equivalent to the inlet pressure. The valve will be closed for as long as there is voltage to the coil.

7

1.2.3.4.5.6.7.

Coil

Armature

Valve plate

Pilot orice

Diaphragm

Main orice

Equalizing orice

+

Solenoid valve, Types EV220BW and EV228BW

Figure 2: Function, NO

2.3 Function UN, latching

Figure 3: Open

When (minus) is supplied to the left terminal pin and (plus) to the right (see gure 3), the pilot orice (4) is opened. As the pilot orice is larger than the equalizing orice (7), the pressure across the diaphragm (5) drops and therefore it is lifted clear of the main orice (6). The valve is now open for ow and will stay open as long as the minimum dierential pressure across the valve is maintained, until the poles are switched back (see Figure 4: closed)

Figure 4: closed

Switching poles

When (plus) is supplied to the left terminal pin and (minus) to the right (see gure 4), the valve plate is pressed down against the pilot orice (4) by the armature spring (2). The pressure across the diaphragm (5) is built up via the equalizing orice (7). The diaphragm closes the main orice (6) as soon as the pressure across the diaphragm is equivalent to the inlet pressure. The valve will stay closed, until the poles are switched (see Figure 3: Open)

7

8

1.2.3.4.5.6.7.8.Coil

Armature spring

Valve plate

Pilot orice

Diaphragm

Main orice

Equalizing orice

Permanent magnet

Solenoid valve, Types EV220BW and EV228BW

Figure 5: Function UN, latching

Danfoss

32U1460

ON

OFF

24h

Danfoss

32U9100

Solenoid valve, Types EV220BW and EV228BW

3 Applications

It is recommended to use a lter in front of the valve. Recommended lter 50 mesh (297 microns).

Figure 6: Filter

In water applications, exercise the valves at least once every 24 hours, meaning change the state of the valve. The valve exercise will minimize the risk of the valve sticking due to calcium carbonate, zinc or iron oxide build-up.

Figure 7: Exercise: Valve on/o

To minimize scaling, and corrosion attack it is recommended that the water passing the valve have the following values:

• Hardness 6-18 °dH to avoid scaling (chalk / lime stone build up).

• Conductivity 50 – 800 µS/cm to avoid brass dezincication and corrosion.

• Above 25°C media temperature avoid stagnant water inside the valve to avoid dezincication and corrosion attack.

Media

EPDM

Drinking water

Media temperature [°C]

EV220BW EPDM

0-90 °C

EV228BW EPDM

0-70 °C

Ambient temperature [°C]

BB DC

Up 50 °C

BB AC

Up 80 °C

EEC BE240CS

Up 55 °C

Kv value [m3/h]

DN15

4 m3/h

DN20

8 m3/h

DN25

11 m3/h

DN32

18 m3/h

DN40

24 m3/h

DN50

40 m3/h

Min. Opening dierential pressure [bar]

0.3 bar

Max. Opening dierential pressure [bar]

10 bar

Max. working pressure [bar]

10 bar

Max. test pressure [bar]

15 bar

Viscosity [cSt]

Max. 50 cSt

Danfoss

A32U1267.01

EV220/228BW 15 NC/NO/UN

EV220/228BW 20 NC/NO/UN

EV220/228BW 25 NC/NO/UN

EV220/228BW 32 NC/NO/UN

EV220/228BW 40 NC/NO/UN

EV220/228BW 50 NC/NO/UN

Solenoid valve, Types EV220BW and EV228BW

4 Product specication

4.1 Technical data

Table 2: Technical data

Capacity diagram

Example, water: Capacity for EV220BW 15B at dierential pressure of 3 bar: Approx. 7 m3/h

Figure 8: Capacity diagram

Main type

EV220/228BW 15

EV220/228BW 20

EV220/228BW 25

EV220/228BW 32

EV220/228BW 40

EV220/228BW 50

Time to open [ms]

(1)

4040300

1000

1500

5000

Time to close [ms]

(1)

350

1000

2500

4000

10000

Components

Materials

Specications

Valve body/cover Eco brass

CW724R

Stainless steel

W. no. 1.4404 / AISI 316L

Equalizing orice Eco brass

CW724R

Stainless steel

W. no. 1.4404 / AISI 316L

Armature

Stainless steel

W.no. 1.4105 / AISI 430 FR

Armature tube

Stainless steel

W.no. 1.4306 / AISI 304 L

Armature stop

Stainless steel

W.no. 1.4105 / AISI 430 FR

Springs

Stainless steel

W.no. 1.4310 / AISI 301

O-rings

EPDM

Valve plate

EPDM

Diaphragm

EPDM

Type

L

B

1

[mm] / coil type

H

1

Weight without coil

[mm]

[mm]BABB / BE

BG / BO

BP

[mm]

[kg]

EV220/228BW 15

80.0

52.0324668459915.0

0.7

EV220/228BW 20

90.0

58.032466845

103

18.0

0.9

EV220/228BW 25

109.0

70.032466845

113

22.0

1.3

EV220/228BW 32

120.0

82.032466845

120

27.0

2.0

EV220/228BW 40

130.0

95.032466845

129

32.0

3.0

EV220/228BW 50

162.0

113.032466845

135

37.0

4.8

Danfoss

32U1783.10

H

L

B

H₁

B₁

Solenoid valve, Types EV220BW and EV228BW

Time to open/close

Table 3: Time to open/close

(1)

The times are indicative and apply to water. The exact times will depend on the pressure conditions. Closing times can be changed by

The times are indicative and apply to water. The exact times will depend on the pressure conditions. Closing times can be changed by replacement of the equalizing orice.

replacement of the equalizing orice.

Materials

Table 4: Materials

4.2 Dimension and weight

Table 5: Dimension and weight

Figure 9: Dimension

EV220BW

EV228BW

Solenoid valve, Types EV220BW and EV228BW

4.3 Mounting

Figure 10: Mounting angle

ISO228/1 connection

Orice

Kv value

Body material

Function

[mm]

[m3/h]

Eco brass /

Stainless steel

EV220BW

EV228BWNCNO

UN

G1/2154

Eco brass

132U1500

132U1501

132U2400

Stainless steel

132U1580

132U1581

132U2401

G3/4208

Eco brass

132U2000

132U2001

132U2402

Stainless steel

132U2080

132U2081

132U2403

G1

25

11

Eco brass

132U2500

132U2501

132U2404

Stainless steel

132U2580

132U2581

132U2405

G11/43218

Eco brass

Stainless steel

132U3280

132U3281

132U2407

G11/24024

Eco brass

Stainless steel

132U4080

132U4081

132U2409

G2

50

40

Eco brass

Stainless steel

132U5080

132U5081

132U2411

Type

Tambient

Supply voltage

Voltage

variation

Frequency

Control

Power consumption

Code no.

[°C]

[V]

[Hz]

[W]

[VA]

BB024AS

-40 – 80

24

-15%, +10%

50

NO, NC1119

018F7358

BB230AS

-40 – 80

220 - 230

-15%, +10%

50

NO, NC1119

018F7351

BB012DS

-40 – 5012±10%

DC

NC, NO, UN

(Latching)

13

018F7396

BB024DS

-40 – 5024±10%

DC

NC, NO, UN

(Latching)

16

018F7397

Solenoid valve, Types EV220BW and EV228BW

5 Ordering

5.1 Parts program

Table 6: Eco brass and stainless steel, valve body NC, NO and UN

5.2 Accessories

Coil

BB / BY, High performance coils

Figure 11: BB / BY, High performance coils

Table 7: BB / BY, High performance coils

EEC and coil controller

Figure 12: EEC and coil controller

Type

Tambient

Supply voltage

Voltage

variation

Frequency

Control

Power

consumption

Code no.

[°C]

[V]

[Hz]

[W]

BE240CS

-25 – 55

208 - 240

±10%60NC, NO

4

018F6783 208 - 240

±10%50NC, NO

4

Cable plug size

Description

Code no.

DIN 18

Cable plug IP67

042N1256

Type

Voltage

Suitable for coil types

Code no.

[V]

BA024A

24 - 240

AL, AM, AS, AZ, BA, BD, BB

042N0185

Type

Actuator kit NC

for EV220BW

Actuator kit NO

for EV220BW

Actuator kit UN

for EV228BW

Diaphragm kit for

EV220/EV228BW

EV220/EV228BW DN 15

132U8080

132U8081

132U8082

132U8016

EV220/EV228BW DN 20

132U8080

132U8081

132U8082

132U8021

EV220/EV228BW DN 25

132U8080

132U8081

132U8082

132U8026

EV220/EV228BW DN 32

132U8080

132U8081

132U8082

132U8033

EV220/EV228BW DN 40

132U8080

132U8081

132U8082

132U8041

Solenoid valve, Types EV220BW and EV228BW

Table 8: Technical data

Cable plug

Figure 13: Cable plug

Table 9: Cable plug

Universal electronic multi-timer, Type ET 20 M

Figure 14: Type ET 20 M

Table 10: Type ET 20 M

Spare part kits

Table 11: Spare part kit DN15-50 in EPDM and stainless steel

1.

2.

3.

4.

5.

1.

2.

3.

4.

1.

2.

3.

4.

5.

1.

2.

3.

4.

5.

6.

Type

Actuator kit NC

for EV220BW

Actuator kit NO

for EV220BW

Actuator kit UN

for EV228BW

Diaphragm kit for

EV220/EV228BW

EV220/EV228BW DN 50

132U8080

132U8081

132U8082

132U8051

1

2

3

4

5

Danfoss

80Z894

Danfoss

80Z896

1

2

3

4

1

2

3

4

5

Danfoss

80Z894

1

2

3

4

5

6

Danfoss

32U1786_11_032U1071_RJA(1A)

O-ring 4 x Screws Armature tube Armature with spring O-ring

O-ring 4 x Screws NO unit O-ring

O-ring 4 x Screws Armature tube Armature with spring O-ring

4 x Screws 2 x O-rings Equalizing orice Closing spring Diaphragm 2 x O-ring

Solenoid valve, Types EV220BW and EV228BW

1002

CERTIFIERAD

356

DTI

Solenoid valve, Types EV220BW and EV228BW

6 Certicates, declarations and approvals

6.1 Directives, approvals and certicates

In accordance with

• Low Voltage Directive 2014/35/EU

• EN60730-1

• EN60730-2-8

• Pressure Equipment Directive 2014/68/EU

• RoHS Directive 2011/65/EU

6.2 Drinking water approvals

Figure 15: Rise

Valves are certied by RISE, notied body 1002. Valid in Denmark and Sweden. In accordance with Boverket Building Regulations (BBR 21, 2014-06-17) Certicate number SCO155-18

Figure 16: SINTEF

Valves are certied by SINTEF. Valid in Norway. In accordance with NKB Product rules nr. 13, pkt. 3.2 – 3.6 :

• NT VVS 100, pkt. 6.4.2 & 6.4.8

• EN ISO 6509

Figure 17: DTI

Inspection by DTI

Figure 18: ACS

Valves are certied by Carso according to ACS guidelines, Circulaire 2002/571.

Figure 19: PZH

Hygenic certicate B-BK-60210-1275/19. Issued by Polish National Institute of Public health (PZH).

Wetted materials in accordance with 4MS (4 member states Germany, Holland, France and UK), DVGW, KTW and W270.

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Danfoss EV220BW, EV228BW Data sheet

Specifications and Main Features

Frequently Asked Questions

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