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Related Items HVAC Mobile Green Classroom cruises into 2009 AHR Expo Selkirk - John Vukanovich, Marketing Vice President: "Selkirk is a leader in HVAC" CIHE HVAC 2009 organizers announce 50 percent occupation by foreign companies Dwyer releases 2009 Full Line Instrumentation & Control Catalog EPEE co-organizes workshop with Czech HVACR associations on EU laws ABB releases adapter that expands HVAC controllers connectivity Home Dwyer Instruments introduces new zone valves for HVAC systems Thursday, 08 February 2007 The NEW Series ZV1 and 3ZV1 Zone Valves from Dwyer Instruments are perfect for use with temperature controllers and thermostats to control temperature in HVAC systems, affirms the company in a press release. 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 are spring return normally closed. They feature a direct-coupled actuator design and are available in 1/2˝, 3/4˝ and 1˝ sizes. Zone valves incorporate manual overrides, and are for use with supply voltages of 120 VAC, 24 VAC, or 230 VAC. Pricing starts at $39.00.   [ Back ]