Ball Valves vs. Globe Valves: What's the Difference?

Ball Valves vs. Globe Valves: What's the Difference?

Choosing the right components is crucial for optimal HVAC system performance. Among these components, Globe Valves and Ball Valves occupy key positions. Globe Valves are especially beneficial when precise flow control is required, while Ball Valves are ideal for situations demanding quick opening and tight shut-off. This article delves into the distinctions between these two types of valves, their operational mechanics, and their common applications in HVAC systems.

Afbv Valve offers high-quality valves exported worldwide across various industries. Our commitment is to provide superior, high value-added products to our customers. Let's work together to create a better future.

Ball Valves

A Ball Valve regulates fluid flow using a rotary ball with a central hole. When the valve is open, the hole aligns with the pipeline, allowing the fluid to pass. Conversely, when closed, the hole is perpendicular to the flow, thus obstructing fluid passage. The valve operation is controlled by rotating the ball, which adjusts the flow rate.

Typically, Ball Valves are used for chilled or hot water systems with glycol concentrations up to 60%. They find applications in the water-side control of air handling units in ventilation and air-conditioning systems, as well as water/steam control in heating systems.

Belimo offers a comprehensive range of industrial 2-way and 3-way Ball Valves equipped with non-spring return, spring return, or electronic fail-safe actuators, delivering high close-off capabilities. These actuators use standard voltage for on/off, modulating, or floating-point controls, moving the valve to the desired position as directed by the control system.

Specialized zone valves like the Belimo QCV and PIQCV are renowned for their reliability, cost-effectiveness, and ease of installation. The Belimo CCV merges the robust close-off functions of a Ball Valve with a uniquely designed disc, providing equal percentage flow characteristics for precise flow control. Economical Ball Valves are frequently chosen for shut-off applications due to their ability to provide quick, tight seals with minimal pressure drop.

Globe Valves

A Globe Valve features a linear travel plug that fits into a seat within a spherical body, hence the name. Fluid flow is adjusted by moving the plug up or down relative to the seat, completely sealing off flow when fully closed. In HVAC systems, Globe Valves are used to regulate, throttle, or isolate flow, offering precise control essential for hot water heating systems, steam systems, and chillers where modulating flow is critical for system efficiency.

Belimo's Globe Valves range in size from ½" to 6", meeting ANSI 125 and ANSI 250 standards. They come with options for bronze or stainless-steel trims and can be fitted with spring return, non-spring return, or electronic fail-safe actuators. These valves are perfect for HVAC applications including air handling units, terminal equipment, and hydronic systems in both primary and secondary loops for water or steam service.

The choice between Globe Valves and Ball Valves hinges on the application's specific needs. Globe Valves excel in precise flow control, whereas Ball Valves are preferable for on/off operations or settings necessitating minimal pressure drops. It's also worth noting that Globe Valves tend to be more expensive than Ball Valves, which might influence the decision-making process.

If you are looking for HVAC training, Belimo offers unlimited access to a comprehensive library of high-quality, current, and engaging HVAC video tutorials from industry experts.

V-Ball Control Valve as a Cost-effective Globe Valve Replacement

Discover

Find Out More

• Cost-Effective • User-Friendly • Various Meters and Valves to Choose From

– How Many Gallons Do You Need?

See all accessories for water meters

What is Pulse Output?

Compare all Meters that Display Flow Rate

Overview of all Accessories

• Vents actuator to failsafe • Closes air supply line • Easy to test and reset • No contact with process media

Adds Thermal Shutdown to ANY spring return pneumatic actuator!

Note: ALL Actuated Ball, Plug, and Butterfly valves are available with manual operator levers. See any series for more info.

For more information, please visit angle bellows globe valve.

Contact us to discuss your requirements for ANSI Bellows Seal Globe Valve. Our experienced sales team can help identify the options that best suit your needs.