General description A Motor Valve for 3 Roads, specifically designed for Saunier Duval gas boilers, model S1053700. This valve is essential for controlling the flow of natural gas in heating systems, ensuring efficient operation of the boiler. Technical specifications Model: S1053700 Compatible with models: ISOTWING20, ISOTWINC25, ISOTWINF30M, ISOTWINF25 Part numbers: C.O.0020039188, HE0020039185, 0020053968 HERMANN Usage The motor valve is used in gas boilers to regulate the flow of natural gas, which is crucial for heating water in residential heating systems. The heated water is then distributed through pipes or radiators to provide warmth in various rooms.