A Ball Valve is a “quarter-turn” flow control valve that uses a hollow, perforated, and pivoting ball to control the movement of liquids or gases.
It is one of the most popular valves in both home plumbing and heavy industry because it provides a bubble-tight seal and is incredibly fast to operate.
A Butterfly Valve is a “quarter-turn” rotational motion valve used to stop, regulate, or start the flow of a fluid.
Unlike a ball valve, which uses a rotating sphere with a hole, a butterfly valve uses a flat disc that rotates around a central axis. It is highly favored for its thin, space-saving design and lower cost compared to other valve types, especially in large pipe diameters.
A Check Valve (also known as a Non-Return Valve or One-Way Valve) is a mechanical device that allows fluid (liquid or gas) to flow through it in only one direction.
Its primary purpose is to prevent backflow, which can contaminate water sources, damage pumps, or cause a system to lose prime. Unlike the other valves we’ve discussed, a check valve is self-acting—it doesn’t need a handle or a motor to work; it responds entirely to the pressure of the fluid.
A Gate Valve (also known as a Sluice Valve) is a linear-motion valve used primarily to start or stop the flow of a fluid. It is the most common type of valve used in water supply systems and industrial piping.
A globe valve is a type of linear motion valve used to stop, start, and—most importantly—regulate the flow of fluid through a pipe.
It gets its name from its traditional spherical body shape. Unlike a ball valve, which is great for a quick “on/off,” the globe valve is the “dimmer switch” of the piping world; it excels at throttling (controlling the volume and pressure of flow).
A needle valve is essentially the precision-instrument version of a globe valve. It is designed for applications where even a tiny adjustment in flow makes a massive difference.
The name comes from its long, tapered, needle-like plunger that fits into a conical seat. This design allows for incredibly fine control of fluid or gas flow.
A plug valve is a quarter-turn manual valve that uses a cylindrical or tapered “plug” to start or stop fluid flow. If a globe valve is a dimmer switch, a plug valve is a heavy-duty on/off toggle.
It is one of the oldest valve designs in existence—dating back to ancient Roman plumbing—but it remains a staple in harsh industrial environments today.
