Detailed Product Description 2W series of control valve,2/2 way direct acting water valve.material can be stainless steel or brass.medium can ... be: air,water ,oil,gasModel2W025-062W025-082W040 ... /4 G3/8Working MediumAir,Water,Oil(below 20cst),Gas Operating PressureAir,Water,Oil,Gas:0-0.7MPaAir,Water,Oil:0-2.0MPaMedium ...