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 | Climate Solutions | 2021.06 AI203386429230en-000601 | 2

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.

© Danfoss | Climate Solutions | 2021.06 AI203386429230en-000601 | 3