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The Browning 3L390 Belt is a heavy-duty fractional horsepower (FHP) V-belt engineered specifically for light-duty HVAC systems
as well as steam applications up to 250°F with specific AH actuators
If the R410A TXV is stuck closed
OEM Compatibility: Exact replacement for Weil McLain 560-528-987
Always tighten the set screw onto the flat surface of the hub threads
Watts 0388800 Regulator 319848-301 The Browning 3L390 Belt isThe Watts 0388800 S1450F is a high capacity boiler feed water pressure regulator and safety relief valve designed for professional hydronic heating installations. This dual control unit effectively manages system pressure by automatically filling the boiler and piping while maintaining consistent levels during operation. Built for durability, the valve features a robust iron and bronze body with 1 2 inch union sweat (solder) inlet and NPT threaded
