Globe Valves vs. Ball Valves

In this blog post, you’ll read:What type of valve is the finest for your application? How does one choose between various valve arrangements when there are many to consider? We'll examine two common choices: globe valve vs ball valve. They differ primarily in the way they close. Ball valves have gates (balls) that close across the flow, while globe valves use a plug (stem). But we can apply operating handle in both. Globe valves are better at controlling flow, whereas ball valves are better for on/off control with little pressure loss.
Table of Contents

What type of valve is the finest for your application? How does one choose between various valve arrangements when there are many to consider? We’ll examine two common choices: globe valve vs ball valve.

They differ primarily in the way they close. Ball valves have gates (balls) that close across the flow, while globe valves use a plug (stem). But we can apply operating handle in both. Globe valves are better at controlling flow, whereas ball valves are better for on/off control with little pressure loss.

2 way ball valve
2-way ball valve

Evolution of Control Valves:

For a considerable amount of time, globe valves were the only option for control valves. Raising or lowering the valve’s stem adjusts the valve’s flow rate.

Moreover, people typically use larger versions to control the water temperature, pressure in chillers, and hot and cold water coils. We are talking about diameter. Globe valves’ close-off ratings may drop below those of alternative valves when used with pipes of greater diameter.

Globe valve working principle

The handwheel must be turned more than 360 degrees to open or close a globe valve. A globe valve consists of a body, bonnet, handwheel, stem, and plug, at the very least. In Figure, the letter A represents the valve body, which contains ports for inflowing and exiting media.

The bonnet shields the threaded valve portions (shown by the letter B in Figure). The plug (Figure, labeled D) may be adjusted in height by rotating the handwheel (Figure, labeled C).

When the plug is taken out, the orifice can be used. When the stopper is placed in the valve seat, flow is halted. When the disk is raised, however, the flow rate increases. The flow rate is greatest when the disc is at its highest possible altitude. The fluid flow velocity may be altered by repositioning the disc within the stem.

Inside Ball Design: Flow Control and Durability in Ball Valves

The design of ball valves uses an inside ball. The ball has a hole in the middle. This hole allows flow. Flow occurs when the hole lines up with both ends of the valve.

inside ball design of ball valve
Inside ball design of ball valve

The hole in the valve is perpendicular to the ends of the valve when the ball is twisted 90 degrees and the valve is closed.

Ball valves usually keep their seal even after years of operation in an operating system. In shutoff applications, people generally prefer these valves over globe valves. As a result of the large flow amount the ball allows, ball valves have proportional control.

Understanding Globe Valves vs Ball Valves

Globe Valves vs Ball Valves are two commonly used valves in various industries. Both valves control the flow of fluids, but they have different designs, functions, and applications.

globe valves pn16
Globe valves pn16

Globe Valves: Design, Operation, and Applications

Globe valves are round and used to control fluid flow precisely in specific situations. They have a linear motion stem that moves up and down to control fluid flow through the valve.

Ball Valves: Spherical Design and Versatile Applications

In designing Ball valves, conversely, they have a spherical ball-shaped disc with a hole in the middle. A ball within the valve body spins to either open or close the opening.

These valves find wide usage in HVAC and water distribution systems, as well as irrigation and water distribution.

Applications:

  • The purpose of globe valves is to regulate fluid glide. As well globe valves can be useful in packages requiring specific throttling.
  • Ball valves, on the other hand, are generally used to isolate and close off plumbing devices.
  • Gasoline oil structures and cooling water structures are the common industrial applications of globe valves.
  • Chemical garages and herbal fuel industries are the typical applications of ball valves.

Globe Vs. Ball valve similarities:

There are a few similarities between globe valves and ball valves. In piping valve structures, both valves are used to regulate the flow of drinks and gases. Close-off valves allow or block fluid flow products inside a pipe. It is possible to operate the ball vs globe valve manually or automatically.

Ball valves are easier to operate than globe valves due to their simplicity.
Globe valves are suitable for full-throttle Powersports, while ball valves need to be both closed and open.
To switch from an open to a completely closed state or vice versa, the ball valve handle must be rotated 90°. To open a globe valve completely, the handwheel must be turned twice or thrice.
Ball valves are cheaper than globe valves because of their easy structure.
Globe valves occupy more space than ball valves.
Compared to globe valves, ball valves can handle more pressure.
A ball valve has a longer lifespan than a globe valve.
Ball valves are more prone to leaks than globe valves.
Compared to ball valves, globe valves offer extra media glide resistance.
There is less head loss with globe valves than with ball valves.
Globe valves simplify flow management devices in four ways. They regulate and control flow accurately in various applications. They achieve this by using their linear stem.
Both maintain precision in either high- or low-pressure settings.

Comparatively, ball valves vs globe valves are known for their dependability and longevity. Due to their simplicity, they require less repairs.

Ball valves are adaptable due to their high heat and pressure resistance. A low-pressure drop indicates that the operation wastes less power, which is intriguing when discussing energy efficiency.

Bronze Globe Angle valve
Bronze Globe Angle valve

Choosing the Right Valve: Factors to Consider

Here are the factors to consider when choosing the suitable valve:

  • Application Requirements:
  • Flow Control Needs:
  • Operating Conditions:
  • Fluid Type:
  • Industry Standards:
  • Material Compatibility:
  • Valve Size:
  • System Compatibility:
  • Pressure Drops:
  • Maintenance Requirements:
  • Cost vs. Performance:
  • Environmental Considerations:

 Conclusion

Globe Valves vs Ball Valves have advantages and disadvantages. The application requires specific flow control, pressure, temperature, and fluid type. It is necessary to consider these factors when selecting the appropriate valve for a particular system or process.

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