Three Way Valve Piping

three way
Involving three directions, processes, or participants
A threesome is a form of group sex involving three people of any gender combination.
tripartite: involving three parties or elements; "a tripartite treaty"; "a tripartite division"; "a three-way playoff"
Three Way is a 2004 film about a kidnapping plot, based on the pulp novel Wild To Possess by Gil Brewer, the film stars Dominic Purcell, Joy Bryant, Ali Larter, Al Israel, Dwight Yoakam and Gina Gershon. The film was released also with titles 3-way and Three Way Split.

piping
a thin strip of covered cord used to edge hems
pipe: a long tube made of metal or plastic that is used to carry water or oil or gas etc.
(used of heat) extremely; "the casserole was piping hot"
(of a time) Peaceful; characterized by the playing of pipes
(of a voice or sound) High-pitched

valve
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
control consisting of a mechanical device for controlling the flow of a fluid
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
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone