American MAC solenoid valve 1100 series, is a multi-functional three-way mechanical valve. The series features a variety of manual operation options, from joysticks and buttons to cams and remote pneumatic versions. Our unique balanced design means pipeline flexibility -- valves can be configured as 3 - or 2-way -- normally closed or open or can be used in vacuum, diverter or selector applications. Information about certifications (e.g. UL, CSA, RoHS, CE)