Home / Products / Valves / Valves / Zone Products Calibration Services DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Pressure DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Air Quality DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Air Velocity DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Flow DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Level DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Temperature DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Test Equipment DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Valves DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Miscellaneous DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Hazardous Rated DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Series 3ZV1 Economical, Manual Override Three-Way Zone Valve is ideal for flow control in hot and cold water HVAC systems. Electrically driven to open and spring to close. Easy to install. Manual override lever is easily accessible externally. View More Series ZV1 Economical, Manual Override Two-Way Zone Valve is ideal for flow control in hot and cold water HVAC systems. Used in conjunction with a thermostat to control room temperature. Electrically driven to open and spring to close. View More Series ZV2 Floating or Modulating Two-Way Detachable Zone Valve is ideal for flow control in hot and cold water HVAC systems. Used in conjunction with a thermostat to control room temperature. View More Series 3ZV2 Floating or Modulating Three-Way Detachable Zone Valve is ideal for flow control in hot and cold water HVAC systems. Used in conjunction with a thermostat to control room temperature. Manual override lever is easily accessible externally. View More