UNI Gerate EVSA Series Normally Closed Solenoid Valves Maximum operating pressure up to 40 barOperating voltage: from 24 to 500 VAC (40-60 Hz). from 12 to 440 VDC (DC voltage).Medium temperature range: -20°C to +60°CSizes: 1/4" - DN 150Screwed and flanged options available DATASHEET [PDF] AGA APPROVAL [PDF] MANUAL [PDF]