Danfoss EV227B Data sheet

Data Sheet

Solenoid valves Type EV227B

For neutral brines in cooling applications.

EV227B is a servo-operated 2/2-way solenoid valve programme, designed with diaphragm in softer material and with stronger armature spring for optimum closing at low pressure

dierences.

Features:

• For neutral brines

• Clip on coil

• Ambient temperature: Up to 50 °C

• Coil enclosure: Up to IP67

• Stainless steel screws for optimum corrosion resistance

AI203386429230en-000601

Features

EV227B

Body material

Brass

DN [mm]

10-22

Connection

G

3

⁄8'' – G1''

Sealing material

EPDM

Function

NC

Kv [m3/h]

1.5 – 5.5

Dierential pressure range [bar]

0.1 – 5

Temperature range [°C]

-35 – 60

Solenoid valves, Type EV227B

1 Portfolio overview

Table 1: Portfolio overview

Danfoss

32U1460

ON

OFF

24h

Danfoss

32U9100

Solenoid valves, Type EV227B

2 Application

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

Figure 1: 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 2: 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

For neutral brines

Media temperature [°C]

EPDM

-35 – 60 °C

Kv value [m3/h]

DN10

1.5 m3/h

DN12

2.5 m3/h

DN14

3.5 m3/h

DN18

5.5 m3/h

DN22

5.5 m3/h

Min. Opening dierential pressure [bar]

0.1 bar

Max. Opening dierential pressure [bar]

5 bar

Max. working pressure [bar]

5 bar

Max. test pressure [bar]

16 bar

Viscosity [cSt]

Max. 50 cSt

Viscosity, mm2/s10203040

50

Correction factor

1.10

1.15

1.20

1.30

1.45

Danfoss

32U1634

Main type

EV227B 10

EV227B 12

EV227B 14

EV227B 18

EV227B 22

Time to open [ms]

(1)

5060100

200

Time to close [ms]

(1)

300

400

500

Solenoid valves, Type EV227B

3 Product specication

3.1 Technical data

Table 2: Technical data

Table 3: Indicative capacity correction factors for dierent viscosities

Multiply the capacity (m3/h) with the viscosity to nd the EV227B valve that complies with the correction factor of the brine selected for the corrected capacity system. Then use the water capacity diagram.

Capacity diagram

Example, water: EV227B 12 at dierential pressure of 1 bar: Approx. 2.5 m3/h

Figure 3: Capacity diagram

Time to open/close

Table 4: Time to open/close

(1)

The times are indicative.

Components

Materials

Specications

Valve body

Brass

W.no. 2.0402

Cover

Stainless steel

W.no. 1.4301

Armature tube

Stainless steel

W.no. 1.4306

Diaphragm

EPDM–Screws

Stainless steel

–

Type

L

[mm]B[mm]

B1/L1 [mm] Coil type

H

1

[mm]

H

2

[mm]

Weight with‐

out coil

[kg]

BE

BG

B1L1B1L

1

EV227B 10

51484672668213840.29

EV227B 12

58504672668213840.35

EV227B 14

80524672668215870.5

EV227B 18

90564672668218900.65

EV227B 22

90584672668218981

L

1

H

1

B

1

B

H

2

L

Danfoss

68F565

Solenoid valves, Type EV227B

Materials

Table 5: Materials

3.2 Dimension and weight

Table 6: Dimension and weight

Figure 4: Dimension

max. 90°

Danfoss

68F566

Solenoid valves, Type EV227B

3.3 Mounting

Figure 5: Mounting angle

1.

2.

3.

4.

1.

2.

3.

Connection ISO 228/1

Orice size

Kv - value

Seal material

Function

[mm]

[m3/h]

NC

G 3/8101.5

EPDM

068F4050

G 1/2

12

2.5

068F4052143.5

068F4053

G 3/4185.5

068F4054

G 1225.5

068F4055

Coil

Type

Power consumption

Enclosure

Features

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

Type

Service kit EV227B

EPDM

EV227B 10

068F4000

EV227B 12

068F4001

EV227B 14

068F4002

EV227B 18 - EV227B 22

068F4003

Danfoss

68F825

1

2

3

4

Danfoss

68F825

1

2

3

Armature assembly O-ring Diaphragm assembly O-ring

Armature assembly O-ring Diaphragm assembly

Solenoid valves, Type EV227B

4 Ordering

4.1 Parts program

Table 7: Brass, valve body NC

4.2 Accessories

Coils

Table 8: Coils used with EV227B

Spare parts

Table 9: Service kit EV227B

5 Online support

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Find technical documentation

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Any information, including, but not limited to information on selection of product, its application or use, product design, weight, dimensions, capacity or any other technical data in product manuals, catalogues descriptions, advertisements, etc. and whether made available in writing, orally, electronically, online or via download, shall be considered informative, and is only binding if and to the extent, explicit reference is made in a quotation or order conrmation. Danfoss cannot accept any responsibility for possible errors in catalogues, brochures, videos and other material. Danfoss reserves the right to alter its products without notice. This also applies to products ordered but not delivered provided that such alterations can be made without changes to form, t or function of the product. All trademarks in this material are property of Danfoss A/S or Danfoss group companies. Danfoss and the Danfoss logo are trademarks of Danfoss A/S. All rights reserved.

Danfoss EV227B Data sheet

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