Thanks to the excellent resistance to the corrosion, the SX series is used in several applications where there is an aggressive environment and/or an aggressive fluid inside. The peculiar feature of this series is that there are no internal poppet valves: it follows that there are not pressure drops and short overall dimensions. The accordance with the ISO 7241-1B standard assures the interchangeability of this series all over the world. The SX series is mainly used in industrial, chemical and naval plants and on high pressure washers.