They are typically used where frequent opening and closing operations are required, as well as flow control at any desired rate. These valves are characterized mostly by their globe-shaped bodies.

These are the most appropriate manual valves used for flow control when it is necessary to control the flow or pressure of a certain type of fluid. They allow efficient fluid regulation, with minimal wear due to erosion, both on the seat and the plug. On the other hand, they offer high pressure loss due to the sudden change in direction imposed on the fluid.

Advantages:

– Allow partial flow control;

– Faster opening and closing than gate valves;

– The construction characteristics of the seat-shutter assembly allow for total watertightness;

– Maintenance facilitated by easy access to the valve’s internal components, without having to remove it from the line.

Disadvantages

– They do not allow flows in both directions;

– High pressure drop.