Uponor PEX pipe and ProPEX® expansion fittings are now available in 2.5-in and 3-in sizes. The company says the new sizes offer professionals the ability to specify, design, and install even more commercial plumbing and hydronic piping systems with PEX.
RectorSeal® Corp. has launched RectorSeal Blue+™, a non-setting, multi-purpose, lead-free, blue-colored pipe thread sealant approved for use with multiple plumbing and HVACR residential, commercial and industrial applications. Blue+ is unrestricted for use with all threaded metal, polyethylene, fiberglass reinforced, PVC, CPVC, and ABS pipe.
Air Pollution Control has introduced the Stinger™, an explosion isolation valve that isolates dust collector explosions to prevent a deflagration from traveling back through the inlet pipe of the dust collector into the workspace. Following extensive testing, Camfil APC reports that the Stinger is the first U.S.-made explosion flap valve to be certified by an independent testing agency to comply with NFPA standards. It may be retrofitted onto most dust collection systems and used with new or existing Farr Gold Series® dust collectors where the risk of a combustible dust explosion exists.
LG Electronics USA has announced the U.S. availability of the LG Multi V Water IV water source unit, a new VRF HVAC system that comes in two configurations: heat pump and heat recovery. Both systems can accommodate up to 64 thermal zones with technology that allows the user to pipe farther, reaching distant areas of a building.
Victaulic has developed the VicFlex™ Style AB6 Assembly for cold storage applications. The company says the VicFlex reduces hands-on installation time by as much as 75%. With the technology, company officials believe users will no longer have to wrestle with rubber boots or messy foam sprays or wait for glue to dry. There also is no need to cut and measure hard pipe.
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.