Gate Valves vs Globe Valves: How to Choose?

Gate valves and globe valves are two of the most widely used types of valves in various applications. But how do you decide between them? 

Understanding the difference between a gate valve and a globe valve is crucial to making the right choice for your system.

In this article, we’ll explore the key differences between gate valves and globe valves, including their operation, structure, and suitability for various applications. 

Whether you’re optimizing your pipeline or addressing specific system requirements, this guide will help you make an informed decision.

Understanding Key Differences: Gate Valves and Globe Valves

For a quick overview, here’s a summary of the gate valve and globe valve difference:

Feature	Gate Valve	Globe Valve
Operation	Fully open/close; not for throttling	Better for throttling and flow control
Pressure Drop	Minimal when fully open	Higher due to flow direction changes
Structure	Vertical gate movement	Angular flow path with a movable disc
Flow Direction	Bidirectional	Unidirectional, with a specified flow path
Speed of Operation	Slow due to multiple turns	Moderate with fewer turns
Cost	Generally less expensive	Typically more costly

Now, let’s dive deeper into each aspect below.

Operation and Flow Control

The primary difference between a gate valve and a globe valve lies in their operation and flow control capabilities. 

Gate valves are designed for fully open or fully closed positions, with a vertical gate that moves up or down to allow or block flow. 

They are not ideal for throttling because the partially open gate can cause turbulence, wear, and noise.

In contrast, globe valves are specifically designed for throttling and flow control. 

The movable disc within a globe valve allows for precise adjustments to the flow rate, making it ideal for applications where control is more important than simply shutting off the flow.

Pressure Drop

Another key gate vs globe valve consideration is the pressure drop. 

Gate valves, when fully open, provide minimal resistance to fluid flow, resulting in a negligible pressure drop. 

This makes them suitable for applications where maintaining pressure is critical.

On the other hand, the design of globe valves inherently creates a higher pressure drop. 

The fluid must change direction as it passes through the valve, which causes resistance. 

While this design is excellent for throttling, it’s less efficient in systems where maintaining flow pressure is a priority.

Structure

The structural and functional differences between gate valves and globe valves are significant. 

A gate valve features a vertical wedge or gate that moves perpendicular to the flow direction, providing a straight-through path when open. 

Its simpler design and minimal internal parts make it easier to maintain in certain conditions.

Globe valves, however, have a more complex design, with a disc and seat located within the valve body. 

The fluid changes direction as it passes through the valve, which gives the valve its throttling capability. 

This design also allows for better sealing compared to gate valves, especially in systems requiring frequent adjustments.

Flow Direction

Gate valves are known for bi-directional flow — meaning they can be installed in either direction without affecting performance. 

This flexibility is advantageous in systems where the flow direction may change or is uncertain during installation.

Globe valves, however, are unidirectional and must be installed according to the marked flow direction. 

Incorrect installation can lead to reduced efficiency or damage to the valve, making proper installation crucial.

Speed of Operation

Gate valves generally require multiple turns of the handwheel to fully open or close the gate, making their operation slower. 

This can be a disadvantage in applications requiring quick response, such as emergency shutoffs.

Globe valves, while not as fast as quarter-turn valves like ball valves, are quicker to operate than gate valves. 

Their design allows for more moderate operation speed, making them suitable for systems where faster adjustments are needed.

Cost Consideration

When comparing costs, gate valves are typically more affordable than globe valves. 

Their simpler design and lower manufacturing requirements make them a budget-friendly choice for many systems.

Globe valves, while more expensive upfront, provide better control and durability in applications where precise flow regulation is necessary. 

The higher cost is often justified by their performance and longevity in demanding conditions.

When to Use a Gate Valve and When to Use a Globe Valve

Choosing between a gate valve vs globe valve depends on your specific application requirements:

Gate Valves

Gate valves are best for applications requiring full open or full close positions, such as water supply systems, pipelines, and industrial processes where throttling is not necessary. 

These valves’ cost-effectiveness and minimal-pressure features make them ideal for straightforward shutoff applications.

Globe Valves

Globe valves are the preferred choice for systems requiring precise flow control and frequent adjustments, such as steam lines, cooling systems, and chemical processing. 

While they come with a higher cost and pressure drop, their control capabilities make them indispensable in applications where flow regulation is key.

Choosing the Right Valve for Your System with PANS 

Selecting the right valve can have a significant impact on your system’s efficiency and performance. 

By understanding the gate valve and globe valve difference, you can make a more informed decision that aligns with your operational needs and budget.

PANS Valve, a trusted name in the valve industry, offers a wide range of high-quality gate and globe valves designed for diverse applications. 

With over three decades of experience, PANS Valve ensures that its products meet the highest standards of reliability, durability, and performance. 

Whether you need a cost-effective gate valve or a precision-engineered globe valve, PANS Valve has you covered.

Gate Valves vs Globe Valves: Conclusion

Understanding the differences between gate valves and globe valves is crucial for optimizing your system’s performance. 

While gate valves are ideal for applications requiring full shutoff with minimal pressure drop, globe valves excel in situations where precise flow control is essential.

By considering factors like operation, pressure drop, and cost, you can choose the valve that best suits your system’s needs. 

For high-quality gate and globe valves, PANS Valve offers reliable solutions backed by decades of expertise.

Resources

• Gate vs Globe Valves
• Differences between gate valve & globe valve
• Difference Between Globe Valves and Gate Valves