Taco’s newest Zone Sentry Zone Valve – with an inverted flare – is suited for retrofit and new construction work. According to the company, the zone valves improve the overall performance of any hydronic system that uses a zone valve. Taco’s zone valve line uses microcircuit-based logic to control a gear-driven electronic actuator that drives a ball valve-based body design.
Flomatic Corp. introduced its new Model 80DICL-VFD, a special patent-pending submersible pump check valve for use with VFD control submersible pumps. According to the company, standard check valves will “chatter” and be noisy when a VFD goes to low flow, causing premature wear and eventual failure.
Victaulic expanded its Vic®-300 MasterSeal™ butterfly valve line with a completely stainless steel option. The company says the new Series 461 stainless steel butterfly valve provides a cost-competitive option for the HVAC and potable water markets.
Triatek’s Universal Valve Module provides facility managers and engineers increased configuration options for renovations or new installations of pressure control systems in critical care environments. When mated to a Triatek Venturi Valve, the UVM equipped Venturi Valve can be controlled by any controller providing a 0-10V output or a Modbus connection, and can therefore be used on both LON and BACnet BAS networks.
Watts has developed two new lead-free backflow prevention products. The LF919 Reduced Pressure Zone Assembly and the LF719 Double Check Valve Assembly are designed to protect potable water supplies by preventing the reverse flow of contaminated water.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.