A flow restrictor limits the rate of water or fluid through a system to improve efficiency, conserve resources, or protect equipment. In plumbing and hydronic HVAC, restrictors help stabilize pressure and temperature by preventing excessive flow. They are common in fixtures like showerheads and in systems that need precise flow control.
/floʊ rɪˈstrɪktər/
A flow restrictor limits the rate of water or fluid through a system to improve efficiency, conserve resources, or protect equipment. In plumbing and hydronic HVAC, restrictors help stabilize pressure and temperature by preventing excessive flow. They are common in fixtures like showerheads and in systems that need precise flow control.
What does a flow restrictor do?
It limits flow to reduce waste, stabilize pressure, and improve system efficiency.
Source: The Cooling Company
Flow restrictors balance efficiency and performance.
A homeowner installs flow-restricting showerheads and a hydronic system restrictor to reduce water use while maintaining consistent comfort.
Inspect restrictors for mineral buildup and clean them to maintain stable flow and temperature.
“Inspect restrictors for mineral buildup and clean them to maintain stable flow and temperature.”
Flow restrictors often help meet water conservation codes without major system changes.
Do flow restrictors reduce water pressure?
They reduce flow, which can feel like lower pressure if the restrictor is too aggressive.
Can restrictors help tankless water heaters?
Yes. Proper flow control can stabilize temperature and prevent over-demand.
How do I clean a flow restrictor?
Remove and soak it in vinegar to dissolve mineral deposits, then rinse and reinstall.
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