Wilkins Pressure Regulating Valve

pressure regulating
Valve designed to automatically provide a preset downstream pressure in a hydraulic system.

wilkins
Maurice Hugh Frederick (1916–2004), British biochemist and molecular biologist, born in New Zealand. From X-ray diffraction analysis of DNA, he and his colleague Rosalind Franklin confirmed the double helix structure proposed by Francis Crick and James Watson in 1953. Nobel Prize for Physiology or Medicine (1962, shared with Crick and Watson)
United States civil rights leader (1901-1981)
Australian who was the first to explore the Arctic by airplane (1888-1958)
English biochemist who helped discover the structure of DNA (1916-2004)

valve
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
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 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
control consisting of a mechanical device for controlling the flow of a fluid