About 3 way Valves
A 3-way valve is a multi-port valve that has three connection openings in the valve body. It is designed to control the flow of fluid in more than one direction, typically to mix or divert flow within a piping system. These valves are available in L-port and T-port configurations, each offering different flow paths.
How Does It Work?
A 3-way valve uses an internal mechanism (usually a ball, plug, or diaphragm) that rotates or shifts to open, close, or redirect flow between the three ports.
- In a T-port design, the valve can connect all three ports or direct flow between any two.
- In an L-port design, the flow is directed from one inlet to either of the two outlets, but not all three at once.
This flexibility allows for mixing two inlets into one outlet or diverting one inlet to two outlets based on the flow requirement.
Why Is It Used?
- Versatile flow control, allowing mixing, diverting, or bypassing
- Reduces the number of valves and fittings needed in complex systems
- Improves space efficiency and simplifies piping layouts
- Easier automation in process control systems
- Minimises potential leak points by consolidating flow paths
Common Uses:
- HVAC systems for switching between heating and cooling circuits
- Water and chemical mixing applications
- Process industries for routing fluids
- Tank selection or diversion systems
- Brewing, pharmaceutical, and food processing lines where clean flow routing is essential
