General applications for a T-port ball:
Sample valves, purging valves, mixing valves, bypass valves, constant flow valves
• Combine flow from two different sources
• Split flow between two different destinations
• Alternate flow between two different sources
• Allow the flow from two different sources to mix
• Alternate flow between two different destinations
Generally, three-way ball valves are described based on their flow patterns (L-pattern or T-pattern
flow), handle orientation (horizontal type or vertical type) and the number of 90 degree turns the
handle is allowed to rotate:
• Two positions (90 degrees)
• Three positions (180 degrees)
• Four positions (270 or 360 degrees)
Depending on how the valve ball is drilled and the piping configuration, gas and liquid flow can be
diverted, mixed, blocked in one direction or shut off completely. Multiport valves save space and can
eliminate an extra tee and valve. Understanding basic three-way ball valve design options makes it
easier to choose the right three-way valve and easier to plan its installation.
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