Contains

• faucet

  A regulator for controlling the flow of a liquid from a reservoir.

• thermostat

  A regulator for automatically regulating temperature by starting or stopping the supply...

• peg

  Regulator that can be turned to regulate the pitch of the strings of a stringed instrument.

• register

  A regulator (as a sliding plate) for regulating the flow of air into a furnace or other...

• draft

  A regulator for controlling the flow of air in a fireplace.

• escape

  A valve in a container in which pressure can build up (as a steam boiler); it opens automatically...

• head gate

  Regulator consisting of a valve or gate that controls the rate of water flow through a...

• aperture

  A device that controls amount of light admitted.

• petcock

  Regulator consisting of a small cock or faucet or valve for letting out air or releasing...

• ballcock

  Floating ball that controls level in a water tank.