Danfoss EV220S Data sheet
Data Sheet
Solenoid valve
Type EV220S
Streamlined servo operated for water applications with limited space
EV220S is a range of streamlined compact
indirect servo-operated 2/2 way solenoid
valves with connections from 3/8” to 3/4”,
special designed to t in applications where
space is limited. This range has been designed
for water and brine applications.
• Laundry
• Dishwashing
• Tapwater
• Machine and food processing
• Kitchens and bathrooms
Features
• Designed for drinking water
• Clip on coil
• Coil enclosure: Up to IP67
• WRAS approved with EPDM sealing: 0 - 85 °C
NC version
AI327435031157en-000102
Features
EV220S
Body material
Brass
DN [mm]
10-17
Connection
G3/8'' – G3/4''
Sealing material
EPDM
Function
NC
Kv [m3/h]
1.6-5
Dierential pressure range [bar]
0.2-10
Temperature range [°C]
-30-100
Solenoid valve, Type EV220S
1 Portfolio overview
Table 1: Portfolio overview
© Danfoss | Climate Solutions | 2021.05 AI327435031157en-000102 | 2
1
2
3
4
5
6
7
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Coil
Armature spring
Armature
Pilot orice
Diaphragm
Equalizing orice
Main orice
Solenoid valve, Type EV220S
2 Functions
2.1 Function, NC
Coil voltage disconnected
When voltage is disconnected, the armature spring (2) presses the armature (3) down against the pilot orice (4).
Pressure builds up over the diaphragm (5) via the equalizing orice (6). The diaphragm closes the main orice (7) as
soon as the pressure over the diaphragm equals the inlet pressure. The valve stays closed for as long as voltage
remains disconnected.
Coil voltage connected (open)
When voltage is applied to the coil (1), the pilot orice (4) is opened. Since the pilot orice is larger than the
equalizing orice (6), pressure over the diaphragm (5) falls and the diaphragm is lifted clear of the main orice (7).
The valve stays open for as long as the required minimum dierential pressure is present and voltage is applied to
the coil.
Figure 1: Function, NC
© Danfoss | Climate Solutions | 2021.05 AI327435031157en-000102 | 3
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