... ,50% glycol,Oil,Air Features:1.All-metal reducing gear2.Available for 3-6VDC,12VDC,24VDC,110V/120VAC work volatge ... /heating system,Low voltage plumbing system 8.Small equipment for automatic control9.Water equipment,auto-control watersystem,industrial mini ... valve, hydraulic valve, electric valve, electronic valve.electric valve for water automatic control,brass or stainless steelmini motorized valve, ...