... ), 2W(UD)series 2 port solenoid valve: 2W(UW), 2W(UD)series* 2W(UW) series solenoid valve, ... diaphragm action, normally closed(normally open option), 2 port 2 position. * Direct lead or DIN electrical connector ... is available. * Port size: 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2".* 2W(UD) series solenoid valve, use for air, ... is available. * Port size: 1/8", 1/4", 3/8". 2 Port Solenoid Valve (2W Series)