Danfoss EV222B Data sheet

Data Sheet

Solenoid valve Type EV222B

Servo operated with isolated diaphragm for dirty and aggressive uids

EV222B is an indirect servo-operated solenoid valve programme for use in connection with contaminated or aggressive media.

Valve body in stainless steel, isolating diaphragm protecting the solenoid system against impurities, build in pilot lter, replaceable equalizing orice, enclosures up to IP67 ensure a reliable and satisfaction function.

Features

• Clip on coil

• Viscosity: Up to 50 cSt

• Ambient temperature: Up to 60 °C

• Coil enclosure: Up to IP67

• Isolating diaphragm

• Water hammer damped Built in lter for protection of pilot system

AI203486428782en-000801

Features

EV222B

Body material

Stainless steel

DN [mm]

15-50

Connection

G1/2'' - G2''

Sealing material

FKM

Function

NC

Kv [m3/h]

4-40

Dierential pressure range [bar]

0.3-10

Temperature range [°C]

0-50

Solenoid valve, Type EV222B

1 Portfolio overview

Table 1: Portfolio overview

Danfoss

32U1791.10

1

7

9

8

6

5

4

3

2

1.2.3.4.5.6.7.8.9.

Armature spring

Armature

Isolating diaphragm

Pilot orice

Diaphragm

Main orice

Equalizing orice

Coil

Spring

Solenoid valve, Type EV222B

2 Function

2.1 Function, NC

2/2-way servo-operated When voltage is applied to the coil (8), the armature (2), with the isolating diaphragm (3), is lifted clear of the pilot orice (4) and the diaphragm (5), is lifted by the uid pressure - the main orice (6) opens.

When voltage is disconnected the isolating diaphragm (3), is pressed down against the pilot orice (4), by the armature spring (1) and pressure is built up above the diaphragm (5), via the equalizing orice (7). The main orice is closed by the uid pressure and the spring (9).The isolating diaphragm keeps the medium away from the actuator.

The space above the isolating diaphragm is lled up with silicone oil.

Figure 1: Function, NC

Danfoss

32U1460

ON

OFF

24h

Danfoss

32U9100

Solenoid valve, Type EV222B

3 Application

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

Figure 2: 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 3: 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

FKM

Contaminated or aggressive media

Media temperature [°C]

FKM

0-50 °C

Ambient temperature [°C]

Up to 60 °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

Main type

EV222B 15

EV222B 20

EV222B 25

EV222B 32

EV222B 40

EV222B 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

Stainless steel

W.no. 1.4581 / AISI 318

Flange for isolating diaphragm

Stainless steel

W.no. 1.4581 / AISI 318

Diaphragm plate

Stainless steel

W.no. 1.4581 / AISI 318

Isolating diaphragm

FKM

Main diaphragm

FKM

Closing spring

Stainless steel

W.no. 1.4310 / AISI 301

O-rings

FKM

Fluid above isolating

Silicone oil

Type

L

B

B1 Coil type

[mm]

H

1

Weight without coil [mm]

[mm]

BB / BEBG[mm]

[mm]

[kg]

EV222B 1580524668

104150.8

EV222B 2090584668

108181.0

EV222B 25

109704668118221.4

EV222B 32

120824668125272.0

EV222B 40

130954668134323.2

EV222B 50

162

1134668

140374.3

Solenoid valve, Type EV222B

4 Product specication

4.1 Technical data

Table 2: Technical data

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

Danfoss

32U8223.10

Danfoss

32U8224.10

Solenoid valve, Type EV222B

Figure 4: Dimension

4.3 Mounting

Figure 5: Mounting angle

ISO228/1 connection

Orice

Kv value

Sealing

Function

[mm]

[m3/h]

NC

G1/2

15

4

FKM

032U8526

G3/4

208032U8527G12511032U8528

G11/4

3218032U8529

G11/2

4024032U8530G25040032U8531

Coil

Type

Power consumption

Enclosure

Features

BB, clip on

10 W AC 18 W DC

IP00 with spade connector

IP20 with protective cap, IP67

with cable plug

BE, clip on

10 W AC 18 W DC

IP67

With terminal box

BG, clip-on

12 W AC 20 W DC

IP67

With terminal box

Cable plug size

Description

Code no

DIN 18

Cable plug IP67

042N1256

Solenoid valve, Type EV222B

5 Ordering

5.1 Parts program

Table 6: Stainless steel, valve body NC

5.2 Accessories

Coil

Table 7: Coils can be used with EV222B

Cable plug

Figure 6: Cable plug

Table 8: Cable plug

1.

2.

3.

4.

5.

Type

Voltage

Suitable for coil types

Code no.

[V]

BA024A

240-0240

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

042N0185

Type

Sealing

EPDM

(1)

FKM

(2)

EV222B 15-50

042U1009

042U1010

1

2

3

4

5

Danfoss

32U1686.10

Locking button Locking nut 4 x screws Assembled isolating unit O-ring

Solenoid valve, Type EV222B

Universal electronic multi-timer, Type ET 20M

Figure 7: Type ET 20 M

Table 9: Type ET 20 M

Spare part kits

Isolating diaphragm kit

The isolating diaphragm design ensures that no uid enters the armature area, which gives the following advantages: The valve is resistant to aggressive uids, impurities in the uid and to calcarous and scale deposits.

Table 10: Isolating diaphragm kit

(1)

Media temperature -20 - 50°C

(2)

Media temperature 0 - 50°C

1.

2.

3.

4.

5.

6.

Type

Actuator kit, NC, DZR/SS

Sealing

FKM

EV222B 15

032U6326

EV222B 20

032U6327

EV222B 25

032U6328

EV222B 32

032U6329

EV222B 40

032U6330

EV222B 50

032U6331

1

2

3

4

5

6

DANFOSS

32U1786

Armature with valve plate and spring O-ring for the armature tube 2x O-rings for the equalizing orice Closing spring Diaphragm 2 x O-rings for the pilot system

Solenoid valve, Type EV222B

Diaphragm spare parts kit, NC

Table 11: Diaphragm spare parts kit, NC

 NOTE:

For complete spare parts kit, the isolating diaphragm kit must be ordered separately

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Danfoss EV222B Data sheet

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