valve

Table of Contents

Introduction References & Edit History Related Topics

Images

Types of valves. globe, butterfly, poppet, and spool

gasoline engine lubrication system

Discover

illustration of the walking titanosaurus, Patagotitan mayorum

Titanosaurs: 8 of the World's Biggest Dinosaurs

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.

What is Holy Week?

Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya

The Fastest Animals on Earth

Two chicks near an egg with a white background (poultry, chick, chickens, birds).

What Do Eggs Have to Do with Easter?

Titanic infographic. The 30th anniversary of its discovery is September 1, 2015. SPOTLIGHT VERSION.

Timeline of the Titanic’s Final Hours

Currency. Money. Cash. Dollars. Bills. Pile of ten, twenty, fifty, and hundred dollar bills.

6 Questions About the History of Money and Banking Answered

valve: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Photos

Types of valves. globe, butterfly, poppet, and spool

gasoline engine lubrication system

See All Images →

Topics

butterfly valve globe valve plug valve poppet valve safety valve spool valve intake valve exhaust valve expansion valve machine particle accelerator clock robot lubrication simple machine balance sundial drilling machinery optical interferometer oscilloscope

Dig Deeper: More Articles That Discuss This Topic

gasoline engine: Valves, pushrods, and rocker arms