For Steam New Series VXS22/23 Pilot operated 2-port solenoid valve for steam / Zero pressure differential operation Normally closed operation Normally open operation Working principles When the coil is energized, the armature assembly is attacted into the core of the tube assembly and the pilot valve is opened. When the pilot valve is opened and the pressure inside the pilot chamber decreases, resulting in the pressure difference from the inlet pressure. Then the piston assembly is lifted and the main valve is opened. Armature assembly interacts with piston assembly at location . The piston assembly is pulled upward when the armature assembly is attracted to open main valve . 7 8 8 6 6 6 4 4 3 3 3 Normally Closed (N.C.) Solenoid valve (Port size) Model VXS22 VXS23 Body Seal Port symbol (Port size) FKM C37, Stainless steel 02 (1/4) 03 (3/8) 04 (1/2) 06 (3/4) 10 (1) Orifice symbol (diameter) Material 3 (10 mmo) 4 (15 mmo) 5 (20 mmo) 6 (25 mmo) Steam cooker Dish/container sterilizer Steam press Steam dryer Boiler Steam heater Applications For various industries which use steam Solenoid valves for various fluids used in a wide variety of Working principles When the coil is de-energized, the armature assembly returns by the reacting force of the return spring . When the pressure inside the pilot chamber increases, the pressure difference from the inlet pressure is lost and the main valve is closed. 8 8 7 6 3 6 4 173 VX2 VXK VXD VXZ VXS VXE VXP VXR VXH VXF2 VX3 VXA