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Constructed with a NEMA 48 frame size and a reliable sleeve bearing system
maintaining the calibration integrity necessary for complex air-handling and central plant logic
Cores should be replaced whenever a pressure drop across the shell exceeds 2 PSI at full load or after any system breach where the internal components were exposed to atmospheric moisture
The manufacturer recommends a full inspection and part replacement using this kit during the annual boiler service to maintain thermal efficiency and reliable operation
Durable 4-blade design with 3/8-inch CCW bore ensures long-term reliability
Johnson Controls VG7251GT Valve 318172-701 Constructed with a NEMA 48The Johnson Controls VG7251GT is a high performance 1 2 inch 2 way normally open globe valve designed for precision control of hot water, chilled water, and steam in commercial HVAC systems. Built with a rugged cast bronze body and brass trim, this valve ensures long term durability and resistance to corrosion in demanding mechanical environments. Featuring a 4. 6 Cv and an equal percentage flow characteristic, it provides stable and accurate
