Product Overview

© Danfoss | DCS (az) | 2017.12
24h
ON
OFF
Data sheet | Solenoid valves for water shut off and leak detection, Types EV220T, EV220W, EV220B, and EV228B
IC.PD.200.S1.02 | 20
EV228B 15 - EV228B 25
Latching DZR brass
y In accordance with:
- Low Voltage Directive 2014/35/EU
- EN60730-1
- EN60730-2-8
- Pressure Equipment Directive 2014/68/EU
Technical data
Main type EV228B 15B EV228B 20B EV228B 25B
Time to open [ms]
3
 40 40 300
Time to close [ms]
3
 350 1000 1000
3
 The times are indicative and apply to water.
The exact times will depend on the pressure conditions.
Closing times can be changed by replacement of the equalizing orifice.
Installation Optional, but vertical solenoid system is recommended
Max. working
pressure (MWP)
10 bar
Max. test pressure 20 bar
Ambient temperature Up to 50 °C
Viscosity Max. 50 cSt
Materials
Valve body/cover DZR Brass W.no. CuZn36Pb2As/CZ132
Armature Stainless steel W.no. 1.4105 / AISI 430 FR
Armature tube Stainless steel W.no. 1.4306 / AISI 304 L
Armature stop Stainless steel W.no. 1.4105 / AISI 430 FR
Springs Stainless steel W.no. 1.4310 / AISI 301
O-rings EPDM
Valve plate EPDM
Diaphragm EPDM
Switch power (on/off)
018F7396 (12V DC)
ISO228/1
connection
Seal
material
Orifice
size
K
v
-
value
Media
temperature
Differential
pressure
Code no.
[mm] [m³/h] [°C] [Bar]
G 1/2 EPDM 15 4 0 – 60 0.3 – 10 032U7468
G 3/4 EPDM 20 8 0 – 60 0.3 – 10 032U7469
G 1 EPDM 25 11 0 – 60 0.3 – 10 032U7470
1
) It is recommended to install a filter in front of the valve.
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.