... valve 2W12Characteristic : 1.Direct lifting diaphragm construction; 2.Open from zero bar for low pressure system use 3.High ... 2Port Thread: BSPP ,BSPT ,NPT ,Flange, UNF, M8X1Orifice (mm): 12,15,20,25,32,40,50Voltage: DC - 12V,24V AC ... - SS 304 Shading Rings - Stainless Steel 304 2W12 Normally Open, with Coil S51B Port SizeOrificeCvMin PressureMax PressureSealsMaterialBody MaterialValve BodyCoilAC(40VA ...