Valve Handles

handles
(handle) manage: be in charge of, act on, or dispose of; "I can deal with this crew of workers"; "This blender can't handle nuts"; "She managed her parents' affairs after they got too old"
(handle) treat: interact in a certain way; "Do right by her"; "Treat him with caution, please"; "Handle the press reporters gently"
The part by which a thing is held, carried, or controlled
The name of a person or place
(handle) the appendage to an object that is designed to be held in order to use or move it; "he grabbed the hammer by the handle"; "it was an old briefcase but it still had a good grip"
A means of understanding, controlling, or approaching a person or situation

valve
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
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
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
control consisting of a mechanical device for controlling the flow of a fluid