Danfoss has released its new EVR v2 solenoid valves, having completed a wide series of improvements to the range of EVR valves throughout 2017. The company says the reinforcements and rationalization now make the valves capable of accommodating higher refrigerant pressure and a broader range of applications while reducing the references, inventory, and servicing time.
Johnson Controls has launched the Hitachi SmartFlex™ VRF Gen II, the second generation of VRF HVAC equipment for the North American market. The company says the Hitachi SmartFlex™ VRF Gen II offers significant enhancements including a re-engineered outdoor unit line with a greater operating range and a wider selection of single module sizes and an indoor unit line that includes re-engineered ducted units with greater static pressure.
E2S Warning Signals has developed a range of LED beacons for use as warning beacons and status indicators for systems installed in hazardous areas and industrial environments. According to the company, the LED units, using a multiple array of high-power white Cree LEDs, offer significant advantages over traditional Xenon strobe technology. The typical light output level from the LED units is a very bright 338 candela, higher than the 120 candela effective intensity of a 5J Xenon tube unit.
SWEP’s new 250AS model is specifically developed for high-efficiency air- or water-cooled reversible chiller applications. Large ports and asymmetric plate design enable an effective operating range of 80-250 kW (23-71 tons).
E2S Warning Signals has added visual signals to its explosion proof and corrosion resistant GNEx family. Suitable for all Zone 1, 2, 21, and 22 hazardous location signaling applications the GNEx beacons have extended temperature range with IECEx and ATEX Ex d approvals. For high-ambient light or long distance signaling the GNExB2 beacon is available in 10, 15. and 21 Joule variants producing up to 902cd.
Technical Systems (TSI), a division of RAE Corporation, has announced the availability of its Series 35 Evaporative Cooled Chillers. The company says the chillers have been specifically designed to provide-highly efficient cooling for commercial and industrial-duty applications.
Bell & Gossett has released a new line of circulators designed to handle larger and more demanding commercial HVAC and plumbing applications. The ecocirc XL 70-145 takes the head pressure range up to 70 ft. and the ecocirc XL 40-275 offers a new 3-in flange and provides high flow performance up to 275 gallons.
Evapco Inc. has expanded its AT (Advanced Technology) line of factory-assembled cooling towers with more than 200 new models, offering customers improved efficiency and more complete range of selections.
Engineered Systems magazine’s June 2019 issue examines the role of HVAC systems and power in colleges and universities via the decentralization of a Missouri college’s central boiler plant, an examination of ventilation considerations in Group R-2 facilities, the steps engineers should consider when overcoming unanticipated boiler room setbacks, common calculations and considerations regarding NFPA 92, and much more.