Globe Valves: The Ideal Choice for Flow Control Technologies

Globe valves are linear actuating valves designed to stop, start, and regulate flow in various industrial applications. Their name derives from their spherical shape, consisting of two halves separated by an internal baffle. This baffle features an opening that forms a base, where a plug or movable disc can be placed to control flow.

Pipe-Mounted Globe Valve: Engineers and operators in modern industrial environments face critical fluid control challenges that directly impact efficiency, safety, and productivity. These challenges 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 challenging conditions. Their design allows for precise flow control, making them ideal for applications where maintaining specified flow rates is critical. Additionally, Globe valves can be manufactured from a variety of materials to withstand corrosive materials and extreme temperatures, addressing durability concerns in harsh industrial environments.

As the world shifts toward green energy solutions, Globe valves are finding new applications in emerging sectors. The growing trend toward hydrogen as a clean energy carrier has increased demand for valves capable of handling its unique characteristics, including its high-pressure requirements and the potential for hydrogen-induced cracking or brittleness (HIC).

A video explaining how a Globe valve works

Globe valves feature precise control capabilities and, when the right material is chosen to combat hydrogen-induced cracking or brittleness, can be used in hydrogen production, storage, and distribution systems. These valves can be manufactured from a variety of materials, allowing them to withstand corrosive materials and extreme temperatures. This adaptability ensures continuous, safe operation even in harsh industrial environments. This gives Globe valves a critical role in environments beyond green energy applications.

The versatility of Globe valves in handling liquids, gases, and steam makes them indispensable in a wide range of industries, from traditional sectors such as oil and gas and chemical processing to marine and gas filling operations. As industrial processes evolve and environmental concerns grow with technological advancements, Globe valves continue to meet the essential 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 in various industrial applications:

• Precise flow control: Globe valves excel in applications requiring precise regulation, from chemical processing to water treatment systems.
• High pressure tolerance: 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 handle a variety of flow media and are available in a wide range of sizes, adapting to diverse industrial needs.

In addition to these basic advantages, Globe valves offer additional benefits that further enhance their utility. Many designs feature a modular construction, allowing cartridge components to be swapped while using the same body. This flexibility allows a single Globe valve body to be configured for different functions such as shut-off, needle, and inspection operations.

The right valve for safe operations

Globe valves serve various purposes that can mitigate safety risks within pipeline infrastructure. For example, some types of valves are better suited for high-pressure flow lines, while others handle low pressure.

In terms of durability, grounded Globe valves offer a distinct advantage over other valve types, especially in flow control applications. Unlike gate valves, which can be damaged when left partially open, grounded Globe valves operate without problems, enhancing their lifespan and reliability.

Grounded Globe valves are better at regulating and precisely controlling flow than gate valves and Globe valves. For a more accurate comparison, we provide comprehensive reference materials that outline the benefits and differences between the valves to help you make your choice.

Grounded Globe valves can be used for isolation as well as flow control services. They can be turned on or off and can be used to regulate flow in a pipeline. If left partially open, grounded Globe valves will not be damaged like a gate valve.

Grounded Globe valve considerations and maintenance

Although grounded Globe valves offer numerous advantages, it is important to consider their characteristics when designing a system. Due to their internal geometry, Globe valves generate a higher pressure drop than some other valve types. They also typically open and close slowly, which can affect rapid flow changes.

• Sometimes, space constraints cause a pressure drop. When Globe valves are connected at their ends, the Globe valve may occupy more space.
• Due to the cavitation effect in some applications, regular maintenance checks should be performed on Globe valves in water applications.
• To ensure optimal performance and longevity, regular maintenance is essential. This includes inspecting components for wear, especially soft parts such as O-rings and packing materials.
• Good lubrication is critical, especially for valves that are not used frequently. Regular cleaning helps prevent the buildup of contaminants that could impair operation.
• Preferably, pressure enters the Globe valve from below the seat. However, depending on the valve type and application, pressure may also enter above the seat. A properly designed and specified Globe valve can operate with pressure in any direction and open and close easily.
• They are an ideal solution for hydrogen and emerging applications.

Globe valves demonstrate their versatility and reliability in a wide range of industrial applications. Their ability to provide precise flow control, handle high pressures, and adapt to a variety of media makes them an essential component in many industrial processes. As industries evolve and new challenges emerge, these valves are ready to meet the demands of the future industrial landscape.

Tips for Choosing the Right Globe Valve

When selecting the right globe valve, several factors must be considered to ensure efficient operation, durability, and safety. Here are the most important criteria to consider:

Basic Selection Criteria

Pressure Rating:

• Check the maximum pressure the valve can withstand (e.g., Class 150, 300, or 600 according to the ASME/ANSI system).
• For high-pressure applications (such as steam or hydrogen systems), choose valves designed to withstand high pressures.

Temperature Range:

• Valve materials vary in their tolerance to high or low temperatures.
• For example, carbon steel is suitable for medium temperatures, while stainless steel or titanium alloys are used in harsh environments.

Material Compatibility:

• Metal: such as steel or bronze (suitable for corrosive liquids).
• Plastic: such as PVC or PTFE (suitable for chemicals or pure water).
• Special alloys: such as Inconel or Hastelloy (for resistance to hydrogen cracking in green energy projects).

Industry Standards

• A Globe valve must comply with global standards to ensure quality and safety.

Also read The criteria for selecting the ideal valves for your project.

The Importance of Preventive Maintenance

To ensure long life and stable performance, follow these preventive measures:

• Check for leaks: Periodically, especially at the disc and stem points.
• Lubricate moving parts: such as the stem and packing to prevent corrosion.
• Replace gaskets and soft parts: such as O-rings when signs of wear appear.
• Internal cleaning: To remove deposits that may affect sealing efficiency.

Choosing the optimal Globe valve depends on operating conditions, materials used, and standard specifications, while regular maintenance ensures long-term, trouble-free performance. It is recommended to consult with valve experts or trusted suppliers to select the most suitable Globe valve for your application.

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