petcocks

Small shutoff valves

Petcocks are small valves used to drain or release pressure from pipes, tanks, radiators, and other containers.

The name combines pet (meaning small) with cock (a valve controlling flow).

A petcock on a motorcycle fuel tank switches between main tank, reserve, and off positions.

Petcocks on radiators allow bleeding air from heating systems.

drainage

drain

Channel for wastewater

  • bleedLose vital fluid
  • purgeEliminate unwanted elements
  • ventOpening for airflow

empty · discharge · evacuate · flush · release · siphon · drip · flow · sediment · sludge

valve

spigot

Liquid flow controller

  • tapValve controlling liquid flow
  • faucetValve controlling water flow
  • bibcockFaucet with bent outlet

gate · ball · needle · globe · butterfly · check · plug · threaded · brass · shutoff

plumbing

fitting

Suitable or proper

  • brassCopper-zinc metal mixture
  • threadedPassed through an opening
  • pipeHollow conveyance channel

nipple · coupling · wrench · seal · gasket · leak · copper · adapter · boiler · steam

automotive

radiator

Heat transfer device

  • coolantTemperature-regulating fluid
  • engineMachine producing motion
  • blockSolid mass, or impede

antifreeze · reservoir · overflow · heater · carburetor · fuel · tank · motorcycle · tractor · vintage

Opposites
valve size and function

petcocksflood gates

Controllable dam openings

sluice gates

Family

petcock

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G