Plumbing Shut Off Valves

shut off
A device used for stopping a supply or operation
The cessation of flow, supply, or activity
stem the flow of; "shut off the gas when you leave for a vacation"
isolate or separate; "She was shut off from the friends"
block off the passage through; "We shut off the valve"

plumbing
The system of pipes, tanks, fittings, and other apparatus required for the water supply, heating, and sanitation in a building
Used as a humorous euphemism for the excretory tracts and urinary system
bathymetry: measuring the depths of the oceans
(plumber) a craftsman who installs and repairs pipes and fixtures and appliances
The work of installing and maintaining such a system
utility consisting of the pipes and fixtures for the distribution of water or gas in a building and for the disposal of sewage

valves
(valve) a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow
(valve) device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
(valve) control consisting of a mechanical device for controlling the flow of a fluid