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What Are 3-Way Ball Valve

Time: 20-October 2025 | Source: I-FLOW| Share

If you’ve worked with piping or fluid systems, you know how important it is to control where the fluid goes. Sometimes you need to mix two streams, and other times you need to send the flow in a different direction. That’s where a 3-way ball valve comes in — one valve that can do multiple jobs.

A 3-way ball valve has three ports and a hollow ball inside with either an L-shaped or T-shaped opening. When you turn the handle, the ball rotates, connecting different ports and changing the flow direction.

  • With an L-shaped ball, the valve can switch flow between two outlets — like choosing whether the water goes left or right.

  • With a T-shaped ball, the valve can send flow to both outlets at once or close one off completely.

This design means you don’t need to install several valves to do the same job. It saves space, money, and time during setup.

These valves come in different materials — brass, stainless steel, and PVC — so you can match them to your system’s pressure, temperature, and media. They can be manually operated with a lever or automated with an electric or pneumatic actuator.

You’ll find 3-way ball valves in water treatment plants, chemical factories, HVAC systems, and oil refineries. They’re also used in food processing and pharmaceutical systems, where clean and reliable flow control is critical.

The big advantage? Versatility and efficiency. Instead of using several valves to route or mix fluids, one 3-way ball valve can do it all. Plus, they’re durable, easy to maintain, and deliver tight shutoff with minimal leakage.


In short, a 3-way ball valve gives you flexibility in directing and managing flow without complicating your piping design. It’s a simple solution for complex flow requirements — small in size but big in function.

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