it features a brushless DC motor with overload protection

Featuring a 3-inch ANSI Class 125 flat-faced flange connection

maintaining the original design pressure ratings and response times

Each unit is a genuine Trane OEM replacement part

the 341900 bellows assembly is specifically sized and threaded for the 247 Series

Watts 0386471 Valve 323055-751 it features a brushless DCThe Watts 0386471 (Series 9D M3) is a heavy duty 1 2" backflow preventer with vent designed specifically for boiler feed lines, laboratory equipment, and processing tanks where continuous pressure is a factor. As a veteran grade dual check valve, it features a forged brass body and stainless steel internal components to resist fouling and ensure long term reliability in non health hazard applications. The integrated atmospheric vent provides an