butterfly valve
Quarter-turn flow controller
A butterfly valve is a valve with a rotating circular disc that controls flow through a pipe.
When the disc aligns with the flow, the valve is open; rotated perpendicular, it blocks passage.
Named for the disc's resemblance to butterfly wings, these valves appear in plumbing, automotive throttles, and industrial systems where quick, simple flow control is needed.
Flat circular object
- stemPlant's central axis
- seatPlace for sitting
- actuatorDevice producing controlled motion
- flangeProjecting attachment rim
gasket · seal · shaft · lever · gearbox · rotary · handle · lug
Using pressurized gas
- hydraulicRelating to pressurized liquids
- electricPowered by current
- manualWritten instructions for use
- actuatorDevice producing controlled motion
torque · solenoid · handwheel · fail-safe · double-acting · signal · feedback · positioner
Restricting flow or speed
- modulatingVarying systematically over time
- flow rateVolume through per time
- pressure dropReduction in atmospheric force
- fluid dynamicsScience of flowing matter
isolation · shutoff · on-off · regulation · damper · positioner · streamline · turbulence
Indoor climate management
- pipelineLong-distance fluid transport tube
- waterworksMunicipal water supply system
- wastewaterContaminated drainage from buildings
- fire protectionSafeguards against burning
chemical processing · food processing · marine · oil and gas · power generation · pharmaceutical · pulp and paper · irrigation
Prevents liquid from passing
- PTFEFluoropolymer with low friction
- elastomerStretchable polymer substance
- linerInner protective covering
- high-performanceExceeding standard capabilities
disc
Flat circular object
flange · gasket · seal · shaft · lever · gearbox · rotary · handle · lug · wafer
pneumatic
Using pressurized gas
- hydraulicRelating to pressurized liquids
- electricPowered by current
- manualWritten instructions for use
actuator · torque · solenoid · handwheel · fail-safe · double-acting · signal · feedback · positioner · stroke
throttling
Restricting flow or speed
- modulatingVarying systematically over time
- flow rateVolume through per time
- pressure dropReduction in atmospheric force
fluid dynamics · isolation · shutoff · on-off · regulation · damper · positioner · streamline · turbulence · restriction
HVAC
Indoor climate management
- pipelineLong-distance fluid transport tube
- waterworksMunicipal water supply system
- wastewaterContaminated drainage from buildings
fire protection · chemical processing · food processing · marine · oil and gas · power generation · pharmaceutical · pulp and paper · irrigation · cooling system
watertight
Prevents liquid from passing
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