Submittal Sheet
Table Of Contents
3 Applications
It is recommended to use a lter in front of the valve. Recommended lter 50 mesh (297 microns).
Figure 3: Filter
Danfoss
32U1460
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.
Figure 4: Exercise: Valve on/o
ON
OFF
24h
Danfoss
32U9100
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 dezincication and corrosion.
• Above 25°C media temperature avoid stagnant water inside the valve to avoid dezincication and corrosion
attack.
© Danfoss | Climate Solutions | 2021.06 AI204086427956en-001101 | 5
Solenoid valve, Type EV220A