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Dungs Part Number: 248673
1 MOD 45 Controls Forced Draught and Combi Burners
Switching Function
The valve combines a valve proving system
For multistage or modulating burners in continuous operation
Dungs MB-VEF 425 B01 S32 MultiBloc Gas Air Ratio Valve - 230VAC application_combustion_control Dungs Part Number: 248673Dungs MBVEF 420 B01 S32 Solenoid Valve The valve combines a valve proving system, min max pressure switch and a pressure limiter. Sensitive adjustment of gas and air pressure ratio Servo pressure regulator as per DIN EN 88 1 Class A Group 2; EN 12067 1 425 = DN50 Outlet Pressure 10 kPa (100 mbar) to 36 kPa (360 mbar) Inlet Pressure up to 36 kPa (360 mbar) For the MB VEF 425 insert an external gas filter e. g. Dungs GF 520 1. Possible Flange Sizes: Rp