Danfoss EV212B Data sheet
Data Sheet
Solenoid valves
Type EV212B
Direct operated with isolated diaphragm for dirt and aggressive €uids
The isolating diaphragm design ensures that no €uid enters the armature area which means valves can be used for
• aggressive €uids
• €uid with impurities
• €uid with risk of lime stone build up
Applications
• Marine ballast water treatment systems (sample intake)
• Dosing systems
◦ Washing and cleaning systems (Alkaline) ◦ Filling
• Pump cooling fx. Vacuum systems
• Systems with particles (Dirt) and aggressive media
Features
• Stainless steel body
• Clip on coil
• Viscosity: up to 50 cSt
• Ambient temperature: up to 50 °C
• Coil enclosure: up to IP67
AI279550962374en-000601
Solenoid valves, Type EV212B
1 Portfolio overview
Features |
EV212B |
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Body material |
Stainless steel |
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DN [mm] |
2-4.5 |
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Connection |
G1/8'' - G3/8'' |
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Sealing material |
FKM |
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Function |
NC |
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K |
v |
[m3/h] |
0.15-0.55 |
Di€erential pressure range [bar] |
0-12 |
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Temperature range [°C] |
0-50 |
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© Danfoss | Climate Solutions | 2021.06 |
AI279550962374en-000601 | 2 |
Solenoid valves, Type EV212B
2 Functions
2.1 Function
Function NC
When voltage is applied to the coil (5), the armature (2) with the isolating diaphragm (3) is lifted clear of the valve ori…ce (4) and opens for €ow through the valve. The valve is open as long as there is voltage to the coil.
When voltage is disconnected, the isolating diaphragm (3) is pressed down against the ori…ce by the spring (1). The valve will be closed for as long as the voltage to the coil is disconnected. 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
5 |
1 |
2 |
3 |
| <![if ! IE]> <![endif]>Danfoss A32U1178.20 |
4 |
1.Closing spring
2.Armature
3.Isolating diaphragm
4.Ori…ce
5.Coil
© Danfoss | Climate Solutions | 2021.06 |
AI279550962374en-000601 | 3 |
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