The MADAS EVPS/NC S15 DN20 is a normally closed gas solenoid-valve model with adjustable slow opening. The opening adjustment includes the initial fast stroke and maximum flow.
Product Specification
- Opening time: 0.5–30 seconds ±20% at 25 °C and rated voltage.
- Closing time: less than 1 second.
- Valve class: Class A, Group 2.
- IP65 protection; ambient range −20 to +60 °C.
Configuration
The EVPS/NC family includes 200 mbar and 360 mbar pressure versions, identified on the nameplate. Riello reference 20212911 is the OEM assembly reference for this listing.







