Valve facts for kids

These water valves are operated by handles.

A valve is a device that it is used to decrease or stop the flow of a fluid (like gases, liquids, fluidized solids, or slurries). It can be installed for example in a pipe or a vessel.

There are many types of valves. Some examples are:

They can be operated manually or automatically.

Images for kids

Valve disc
Inconel X750 spring
A seacock for cooling seawater, on a marine diesel engine. Seacocks are usually ball valves, but may be other types as well.
A sailor aboard a ship operates the wheel controlling a fuel valve.
Globe valve
A valve controlled by a wheel (on vertical line)
Hastelloy ball valve
Stainless steel gate valve
Stainless steel gate valve
Hastelloy check valves
Duplex ball valve
Inconel gate valve
Stainless steel wafer check valve
Inconel check valve
Stainless steel ball valve
Cryogenic 254 SMO gate valve
Inside view of a tilting disc inconel check valve
Duplex ball valves
Cryogenic super duplex gate valve frozen up during operation
Super duplex ball valves
Flanged nozzle inconel check valve or axial check valve
Inside hastelloy check valve, wafer configuration
Large carbon steel swing check valve
Disc for an alloy check valve also known as axial check valve
Balls for alloy ball valves
Wafer check valve
Nuts and bolts for incoloy valves
Inconel check valve springs
Ball for a titanium ball valve