... ,1 1/4,1 1/2,2 2/2 way solenoid valve 2W21 Characteristic : 1.Direct lifting diaphragm construction; 2.Open ... frequency of DIN plug coil Medium : Air, City Gas, Water, Oil, Petroleum, etc. Temperature: NBR Seal: 14F to 176F , -10 ... Normally Closed , with Coil S51B /SD01B/SD02B 2/2 way solenoid valve 2W21 Port SizeOrificeCvMin PressureMax PressureSealsMaterialBody MaterialValve BodyCoilAC(40VA)DC(30W ...