The Schneider Electric (Erie) VT3213G13B020 is a three-way sweat zone valve intended for use in HVAC systems. It controls the flow of hot or chilled water by opening, shutting, or diverting it in response to a signal from a thermostat or control system. The valve is composed of strong brass for extended life and can handle pressures up to 40 psi and temperatures ranging from -40°F to ... https://www.partshnc.com/vt3213g13b020-schneider-electric-erie-120v-12-swt-3-way-valve