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The dual-check design utilizes an intermediate atmospheric vent to safely discharge polluted water if a downstream check fouls
making it compatible with most standard control circuits and relay logic found in HVAC systems
For peak distribution efficiency and system reliability
and control boards without current fluctuation
For low limit freeze protection
Danfoss 193B-1536 4 Way Valve THPU32HP7Y The dual-check design utilizes anThe Danfoss 193B 1536 4 Way Valve is a high performance rotary mixing valve engineered for precision temperature control in hydronic heating and cooling systems. Built with a DZR brass valve body (Dezincification Resistant), this 2 inch valve provides exceptional durability in closed loop applications using water or up to 50% glycol concentrations. With a significant flow capacity of 46. 8 Cv and 2" FNPT threaded connections, it is designed for high