Valves
Valves are like special machines that help control how things move through pipes. They are important for making sure liquids, gases, and other things can flow smoothly and safely. There are many different kinds of valves, like gate, globe, and ball valves. Each type has different models with unique abilities. Some valves work on their own, while others need someone to control them with a machine.
It is important that a correct valve is specified for the function, and must be constructed of the correct material for the process liquid.