the AP13243 is specifically calibrated for natural gas systems only
this brass backflow preventer is a standard choice for HVAC contractors managing hydronic heating systems and small-scale supply lines
Its robust carbon steel shell and powder-coated finish provide superior corrosion resistance for demanding field environments
High close-off models like the AH13B020 are designated by the 'H' in the prefix and are specifically rated for higher differential pressures (up to 75 psi depending on CV) compared to the standard AG series
the Trane VAL7450 is the valve body assembly only
Danfoss 060-121966 Pressure Control Els PW 17895 the AP13243 is specifically calibratedThe Danfoss 060 121966 KPI35 Pressure Control is an industrial grade electromechanical switch designed for the regulation, monitoring, and alarm signaling in liquid and gaseous media systems. Built for durability in commercial HVAC, boiler, and pump applications, this low pressure switch features a SPDT contact system that manages motor starters and solenoid valves with precision. It operates within a pressure range of 0. 2 to 8. 0 bar, utilizing a