Main differences between a globe valve and a ball valve

Clear and detailed comparison of ball valve and globe valve: features, advantages and areas of use

In fluid control, choosing the most suitable valve is crucial to ensure system efficiency and durability. Two of the most popular types are the ball valve and the globe valve, which are very different from each other in terms of design, operation and applications.

In this article, we will analyze the main characteristics of both and their differences, to understand when and why to choose one or the other.

Ball valves: features and advantages

Ball valves are mechanical flow shut-off devices designed to fully open or close a conduit with fast and safe movement. Their main element is a ball perforated in the center, called a shutter, which rotates around its axis thanks to manual (via a lever) or automatic (with pneumatic, electric or hydraulic actuators) actuation. 
When the ball hole is aligned with the tube, the fluid passes freely, generating minimal pressure drops; conversely, rotating the lever 90° misaligns the hole and closes the section hermetically. 

This simple construction ensures great reliability, long life and ease of use, making ball valves among the most popular in industrial, civil and domestic applications. From a technical point of view, they stand out for their precise sealing and the possibility of operating even with high pressures and aggressive fluids, thanks to bodies made of brass, bronze, stainless steel or other metals.
Its use, in the right type of system, also allows for other advantages, including:

• quick opening and closing action;
• low load loss;
• ease of maintenance;
• compactness and versatility.

Features and advantages of globe valves

Globe valves are shut-off and flow regulation devices very common in industrial and civil environments, characterized by a construction that allows not only the opening and closing of the passage, but also the precise modulation of the flow rate. Their body has a typically spherical design (hence the name “globe”), with an internal separation dividing the valve into two chambers connected by a central orifice. 
The closing element is a disc or cap shutter, mounted on a stem that moves vertically thanks to a manual handwheel or actuator. When the stem is lowered, the shutter approaches the seat and progressively narrows the passage, allowing for accurate flow regulation; when fully lowered, the orifice is hermetically sealed. 

From a technical point of view, they have a higher flow resistance than other types of valves because the fluid must change direction through the valve chamber, resulting in a higher pressure drop. However, this disadvantage is offset by the ability to ensure fine control and a reliable seal, made possible by the coupling between the shutter and the seat. 

Globe valves have numerous applications: in water systems, they are used to regulate water pressure and flow; in steam systems and air conditioning and heating systems, they allow precise control of heat flow; in the industrial and petrochemical sectors, they are chosen to handle corrosive fluids, gases, or high-temperature products. Furthermore, due to their robustness, they are also used in sectors such as energy production and chemicals, where safety and reliability in regulation are priorities.

In addition to accurate flow control, thanks to their particular structure, globe valves also ensure other advantages, such as:
 

• robustness and long life over time; 
• ease of repair and maintenance; 
• ideal use for adjustment and dosing applications.

Comparison of ball valve and globe valve: the main differences 

To understand which valve is best suited for your system, it's important to understand the key differences between the ball valve and the globe valve, as well as the applications for which they are best suited.
As we have seen, the ball valve is ideal for applications that require fast and frequent closing, such as HVAC, plumbing, and industrial systems, especially when working with clean or lightly contaminated fluids. It also offers a great seal, ensuring reliability over time.

On the other hand, the globe valve has a more complex structure: it is designed to withstand high pressures and temperatures, offering an excellent seal even in more demanding conditions. However, compared to the ball valve, the globe valve results in a greater pressure drop and slower opening.

In summary:

• If your primary need is quick closing and a secure seal with minimal pressure loss, the ball valve is the best choice;
• if, on the other hand, your system requires precise flow control, with the possibility of accurately modulating the flow rate, the globe valve is undoubtedly the most suitable solution.

Ball and globe valves in the ECI catalogue

The choice between ball valve and globe valve depends mainly on the specific needs of the system: speed and hermetic seal or precise flow control. ECI supports every choice with high-quality products and specialized technical assistance.

The company offers a full range of ball and globe valves designed to meet the different needs of industrial and civil plants, always ensuring quality, safety and reliability. Among the ECI products you can find:

• ball valves available in various models with manual, pneumatic or electric actuation, in stainless steel and other resistant materials, ideal for quick and reliable closing.
• Globe valves designed for precise flow control, available in various configurations and materials, perfect for applications requiring modulation and superior sealing.

For more information, check out our catalog or contact us for a personalized consultation.