1. 2/2-way,normally closed,force pilot; 2. DN 10mm,PN 0-10bar,NPT 3/ ... Specification: Ordering Code2S160-152S200-202S250-252S350-352S400-402S500-50Acting TypeNormally Closed Jiont Port Size1/2″3/4″1″3/4″1 ... DC:12V, 24V,36V,48V,110V,220V,380VVoltage range 2S Series Air Stainless steel Solenoid Valve /Normal closed liquid solenoid valves