Ball valves aren’t limited to just on/off control. Multi-port ball valves, such as 3-way and 4-way designs, allow fluid to flow in multiple directions. These are ideal for mixing, diverting, or distributing fluids in complex systems. This article explains the differences between T-port and L-port configurations, how they work, and where they’re used in real-world applications like HVA... https://www.aironexvalves.com/