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This genuine Armstrong A21191 set ensures a perfect fit and seamless integration
This specific model is designed for commercial water heating applications
A filter drier replacement is mandatory whenever the refrigerant circuit is opened for repair
allowing for horizontal or vertical installation in tight equipment cabinets
Siemens Building Technology 599-03149 Valve 318423-701 This genuine Armstrong A21191 setThe Siemens Building Technology 599 03149 is a professional grade Flowrite 599 series globe valve engineered specifically for high demand hydronic HVAC systems. This 3 way mixing valve features a 1 inch NPT internal thread connection and a 10 Cv flow capacity, making it an essential component for technicians balancing heating and cooling loops in commercial mechanical rooms. Built with a rugged UNS CA 844 bronze body and stainless steel trim, the 599
