Data Sheet
Solenoid valve
Type EV310A
Direct-operated 3/2-way solenoid valves for use in industrial applications
EV310A covers a wide range of small competitive, direct-operated 3/2-way solenoid valves for use within industrial applications, for example as pilot valve.
Features
• For water, oil, compressed air and similar neutral media
• Screw on coil
• Ambient temperature: Up to 50 °C
• Coil enclosure: Up to IP65
• Viscosity: Up to 20 cSt
AI204086434876en-000801
Solenoid valve, type EV310A
1 Portfolio overview
Table 1: Portfolio overview
Features |
EV310A NC |
EV310A NO |
EV310A NC MAN |
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Body material |
Brass |
Brass |
Brass |
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DN [mm] |
1.2-2 |
1.2-1.5 |
1.5 |
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Connection |
G1/8''-1/4'' |
G1/8'' |
G1/8''-1/4'' |
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Sealing material |
FKM |
FKM |
FKM |
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Kv [m3/h] |
0.04-0.08 |
0.04-0.07 |
0.07 |
Di€erential pressure range [bar] |
0-20 |
0-13 |
0-12 |
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Temperature range [°C] |
-10 - 100 |
-10 - 100 |
-10 - 100 |
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Manual override (MAN) |
No |
No |
Yes |
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© Danfoss | Climate Solutions | 2021.06 |
AI204086434876en-000801 | 2 |
Solenoid valve, type EV310A
2 Functions
2.1 Function, NC / NC MAN
Coil voltage disconnected (closed):
When the voltage to the coil (4) is disconnected, the armature (2) with the valve plates (3) is pressed down by the closing spring (1) and closes the connection between P and A. At the same time, the connection between gates A and R is opened. The connection between P and A will be closed for as long as the voltage to the coil is disconnected.
Coil voltage connected (open):
When voltage is applied, the armature (2) with the valve plates (3) is lifted and closes the connection between A and R. At the same time, the connection between P and A is opened. The connection between P and A will be open for as long as there is voltage to the coil.
R |
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1 |
Opening spring |
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2 |
Armature |
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3 |
Valve plate |
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4 |
4 |
Coil |
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P |
Pressure gate |
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1 |
A |
Working gate |
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R |
Relief gate |
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2 |
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3 |
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A |
P |
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2.2 Function, NO |
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Coil voltage disconnected (open):
When the voltage is disconnected, the armature (2) with the valve plates (3) is pressed down by the opening spring
(1) and closes the connection between A and R. At the same time, the connection between P and A is open. The connection between P and A will be open for as long as the voltage to the coil is disconnected.
Coil voltage connected (closed):
When voltage is applied to the coil (4), the armature (2) with the valve plates (3) is lifted and closes the connection between P and A. At the same time, the connection between gates A and R is opened.
The connection between P and A will be closed for as long as there is voltage to the coil.
© Danfoss | Climate Solutions | 2021.06 |
AI204086434876en-000801 | 3 |
Solenoid valve, type EV310A
P |
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1 |
Opening spring |
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2 |
Armature |
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3 |
Valve plate |
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4 |
4 |
Coil |
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P |
Pressure gate |
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A |
Working gate |
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1 |
R |
Relief gate |
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2 |
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3 |
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A |
R |
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© Danfoss | Climate Solutions | 2021.06 |
AI204086434876en-000801 | 4 |
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