Abstract: A vacuum toilet system comprises a tank having a sewage inlet connection for entry of sewage into the tank, a level detector establishing a maximum filling level for the tank, and a spray nozzle assembly for distributing cleaning liquid inside the tank. The spray nozzle assembly comprises an axle member having a first end portion provided with a mechanism attaching the axle member to the tank and a second end portion defining a vertical axis of rotation. The axle member is hollow and defines a passage that extends from the first end portion of the axle member and debouches at an outlet at the second end portion thereof. The spray nozzle assembly comprises a spray head mounted on the second end portion of the axle member for rotation about the vertical axis of rotation.

Abstract: A solenoid actuated valve for controlling flow of fluid through a bore defined by a tube comprises an armature fitted slidably in the bore for displacement therein under solenoid control. The armature comprises a generally cylindrical magnetic body that is a clearance fit in the bore, and a glide pad carried by the magnetic body for guiding movement of the magnetic body relative to the tube and preventing direct sliding contact therebetween.