|
contents | products | |||||||||
| New Zone Valves from Dwyer  The new Series ZV2 and 3ZV2 Zone Valves are suitable for use with temperature controllers and thermostats to control temperature in HVAC systems. The valves control the flow of hot and cold water in the HVAC system thereby controlling temperature. Units come in two-way and three-way constructions and incorporate a bi-directional motor. They feature an easy push-button removable actuator design for ease of installation and are available in ½", ¾", 1" and 1-¼" sizes. Zone valves incorporate manual overrides, and are for use with supply voltages of 120 VAC, 24 VAC, or 230 VAC.Inputs available are floating or modulating with 4 to 20 mA or 0 to 10 VDC. Modulating valves feature a motor timer that automatically turns off the motor after the full stroke to extend motor life. write your comments about the article :: © 2007 Construction News :: home page |