Globe Valves: The Commonsense Choice for Emerging Technology Flow Control

Globe valves are linear motion valves designed to stop, start and regulate flow in various industrial applications. Their name derives from their spherical body shape, which consists of two halves separated by an internal baffle. This baffle features an opening that forms a seat, onto which a movable plug or disc can be positioned to control flow.

Engineers and operators in modern industrial settings grapple with critical fluid control challenges that directly impact efficiency, safety and productivity. These include the need for precise flow regulation, resistance to high pressures and temperatures, minimal leakage and the ability to handle a wide range of media.

Globe valves offer solutions to these challenges, providing reliable performance in demanding conditions. Their design allows for accurate flow control, making them ideal for applications where maintaining specific flow rates is critical. Additionally, globe valves can be constructed from various materials to withstand corrosive substances and extreme temperatures, addressing the durability concerns in harsh industrial settings.

As the world shifts towards greener energy solutions, globe valves are finding new applications in emerging sectors. The growing push for hydrogen as a clean energy carrier has created demand for valves capable of handling hydrogen’s unique properties, including its high-pressure requirements and potential for hydrogen-induced cracking (HIC) or embrittlement.

Globe valves enable precise control capabilities and when the proper material is selected to combat HIC, can be utilized in hydrogen production, storage and distribution systems. Globe valves can be manufactured from various materials, allowing them to withstand corrosive substances and extreme temperatures. This adaptability ensures continued safe operation even in challenging industrial environments. This gives globe valves a critical role to play in environments beyond green energy applications.

The versatility of globe valves in handling liquids, gases and steam makes them indispensable across a wide spectrum of industries, from traditional sectors like oil and gas and chemical processing, or maritime and gas filling operations. As industrial processes evolve and environmental concerns drive technological advancements, globe valves continue to meet basic needs for flow control.

Advantages of Globe Valves in Diverse Applications

The unique design of globe valves offers several key advantages that make them indispensable across various industrial applications:

• Precise Flow Control: Globe valves excel in applications requiring fine-tuned regulation, from chemical processing to water treatment systems.
• High Pressure Capability: Their robust construction allows globe valves to handle high-pressure applications, making them suitable for steam systems, hydraulic circuits and green hydrogen infrastructure.
• Versatility: Globe valves can manage various flow media types and are available in a wide range of sizes, adapting to diverse industrial needs.

Beyond these core strengths, globe valves offer additional benefits that expand their utility. Many designs feature a modular construction, allowing for the interchange of cartridge components while using the same body. This flexibility enables a single globe valve body to be configured for different functions such as shut-off, needle, check, or stop-check operations.

The Right Valve for Safe Operations

Globe valves serve different purposes that can mitigate safety hazards within pipeline infrastructure. For example, certain valve types are more suitable for high-pressure flow lines. Others address pressure drops.

In terms of durability, globe valves have a distinct advantage over other valve types, particularly in throttling applications. Unlike gate valves, which can experience damage when left partially open, globe valves can operate in this state without issue, enhancing their longevity and reliability.

Globe valves are better for regulation and more precise flow control when compared to gate valves and ball valves. For a more direct comparison, we offer extensive reference materials that illustrate benefits and differences between valves, to help with your selection.

Globe valves can be used for isolation as well as for throttling services. Globe valves can be on or off but can also be used to regulate flow in a pipeline as well. If left partially open, globe valves will not experience damage like a gate valve will.

Globe Valve Considerations and Maintenance

While globe valves offer numerous advantages, it is important to consider their characteristics in system design. Due to their internal geometry, globe valves can introduce a higher pressure drop compared to some other valve types. They also typically have a slower open/close operation, which may affect rapid flow changes.

• Sometimes space constraints, depending on the end connections, a globe valve may take up more space
• Consideration of cavitation in certain applications, so some regular maintenance checks should be done for globe valves in water applications.

To ensure optimal performance and longevity, regular maintenance is key. This includes inspecting components for wear, particularly soft goods like O-rings and packings. Proper lubrication is crucial, especially for valves that are not frequently operated. Regular cleaning helps prevent debris accumulation that could hinder operation.

The pressure should preferably enter the globe valve under the seat. However, depending on the valve type and application, pressure might enter over the seat as well. A properly engineered and specified globe valve can operate with pressure in either direction and open and close with ease.

Globe Valves Are an Ideal Solution for Hydrogen and Emerging Applications

Globe valves continue to demonstrate their versatility and reliability across a wide range of industrial applications. Their ability to provide precise flow control, handle high pressures and adapt to various media types makes them an essential component in many industrial processes. As industries evolve and new challenges emerge, globe valves stand ready to meet the demands of tomorrow’s industrial landscape.

For more detailed comparisons between globe valves and other valve types, or for specific application guidelines, consult our CPV resources or contact us to learn more.