Detailed Product Description 2W series of water valve,2/2 way direct acting water valve.material can be stainless steel or brass. ... medium can be: air,water ,oil,gasModel2W025-062W025-082W040-102WH012-062WH012-082WH020-10Orifice(mm)2.541.22PortConnection (G-inch) ... G3/8Working MediumAir,Water,Oil(below 20cst),Gas Operating PressureAir,Water,Oil,Gas:0-0.7MPaAir,Water,Oil:0-2.0MPaMedium TempNBR ...