Danfoss EV220B 65, EV220B 100 Data sheet
Data sheet
Servo-operated 2/2-way solenoid valves
Type EV220B 65 - EV220B 100
EV220B 65 - EV220B 100 is a 2/2-way solenoid
valve program for use in robust industrial
applications, demanding high flow rates.
The valve is designed with cast iron valve
body and flanged connection.
Water-hammer damped design and built-in pilot
filter ensures a reliable operation.
Features y For water and similar neutral media
y Flow range for water KV: 50 - 130 m³/h
y Ambient temperature: Up to 80 °C
y Differential pressure: Up to 10 bar
y Viscosity: Up to 50 cSt
y Coil enclosure: Up to IP67
y Flange connections: 2 ½, 3 and 4”
y Water hammer damped
y Built-in filter for protection of pilot system
y Seal material: EPDM and NBR
© Danfoss | DCS (sb) | 2020.08
AI243586443728en-000901| 1
Data sheet | Solenoid valves, type EV220B 65 - EV220B 100
ON
OFF
24h
EV220B 65-100
Valve body with flange
connection
Technical data
Connection
ISO 228/1
Seal
mate rial
Orifice
size
[mm]
kv - value
[m³/ h]
Differential pressure,
min. to max.
[bar]
Media
temperature
min. to max.
[°C]
Code number
2 ½ EPDM 65 50 0.25 – 10 -25 – 90 016D6065
2 ½ NBR 65 50 0.25 – 10 -25 – 90 016D3330
3 EPDM 80 75 0.25 – 10 -25 – 90 016D6080
3 NBR 80 75 0.25 – 10 -25 – 90 016D3331
4 EPDM 100 130 0.25 – 10 -25 – 90 016D6100
1
) It is recommended to use filter in front of the valve. Recommended filter 50 mesh (297 microns).
2
) 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.
3
)
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 dezincification and corrosion.
- Above 25°C media temperature avoid stagnant water inside the valve to avoid dezincification and corrosion attack.
Main type EV220B 65 EV220B 80 EV220B 100
Time to open [s] 1)
Time to close [s] 1)
1)
The times are indicative and apply to water.
5 5 5
7 15 29
Type EV220B 65 - EV220B 100
Installation Vertical solenoid system is required (see page 5, mounting angle)
Max. test pressure 15 bar
Ambient temperature Up to 80 °C
Viscosity Max. 50 cSt
Materials
Valve body: Cast iron W.no. 0.6020
Armature: Stainless steel W.no. 1.4105/AISI 430L
Armature tube: Stainless steel W.no. 1.4306/AISI 304L
Springs: Stainless steel W.no. 1.4310/AISI 301
Pilot body Brass –
Ring Copper –
NBR, Cetellen WS3820,
PTFE, EPDM, CR
NBR, centellen WS3820,
PTFE
–
–
Media
EPDM version
NBR version
EPDM version Water, Brine, Glycol –
NBR version Air, Oil –
© Danfoss | DCS (sb) | 2020.08
AI243586443728en-000901| 2
1
Data sheet | Solenoid valves, type EV220B 65 - EV220B 100
Function
7
2
3
4
1. Armature
2. Closing spring in pilot system
3. Valve plate
4. Pilot orifice
5. Servo piston
6. Main orifice
7. Coil
8. Equalizing orifice
8
Coil voltage disconnected (closed):
When the voltage is disconnected, the valve plate
(3) is pressed down against the pilot orifice (4) by
the pilot system’s closing spring (2).
The pressure across the servo piston (5) is built
up via the equalizing orifice (8). The servo piston
closes the main orifice (6) as soon as the
pressure across the piston is equivalent to the
inlet pressure.
The valve will be closed for as long as the voltage
to the coil is disconnected.
5
6
Coil voltage connected (open):
When voltage is applied to the coil (7), the
armature (1) and the valve plate (3) are lifted
clear of the pilot orifice (4). As the pilot orifice is
larger than the equalizing orifice (8), the pressure
across the servo piston (5) drops and therefore it
is lifted clear of the main orifice (6).
The valve will be open for as long as the
minimum differential pressure across the valve is
maintained, and for as long as there is voltage to
the coil.
© Danfoss | DCS (sb) | 2020.08
AI243586443728en-000901| 3
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