... 1 1/4,1 1/2,2 2/2 way solenoid valve 2W21 Characteristic : 1.Direct lifting diaphragm construction; 2.Open ... Brass or Stainless steel Seal -NBR, EPDM, PTFE or VITON Armature Tube - Stainless Steel 304 Plunger - Stainless Steel 430F Stop - ... Closed , with Coil S51B /SD01B/SD02B 2/2 way solenoid valve 2W21 Port SizeOrificeCvMin PressureMax PressureSealsMaterialBody MaterialValve BodyCoilAC(40VA)DC(30W ...