How to Choose the Right Globe Valve: A guide to selecting the right globe valve for your specific application.

Globe valves are a type of valve used for regulating flow in a pipeline. They consist of a movable plug or disc element and a stationary ring seat in a generally spherical body. Here are some keywords related to globe valves:

1. Linear motion: Globe valves use linear motion to move a closure member into and out of a seating surface.

2. Two-port valves: Globe valves are typically two-port valves, although three-port valves are also produced mostly in straight-flow configuration.

3. Angle globe valves: Globe valves with ports at an angle are called angle globe valves.

4. Stop valves: In plumbing, valves with a mechanism similar to globe valves are often called stop valves.

5. Corrosive or high viscous fluids: Globe valves are mainly used for corrosive or high viscous fluids which solidify at room temperature.

6. Bonnet: The bonnet is connected to the body and provides the containment of the fluid, gas, or slurry that is being controlled.

7. Ports: Ports are openings in the body for fluid flowing in or out.

The globe valve symbol in P&ID diagrams is:

Advantages of globe valves over other types of valves

Globe valves are a type of valve used for regulating flow in a pipeline. They consist of a movable plug or disc element and a stationary ring seat in a generally spherical body.

Here are some advantages of globe valves over other types of valves:

• Ease of operation: Globe valves are easy to operate because they only require a quarter turn to open or close.

• Maintainability: Operating and maintaining a globe valve is easier than other types of valves.

• Leakage rate: Globe valves have a lower leakage rate than other types of valves, which makes them functional in a wider range of applications.

• Versatility: Globe valves are useful for regulating flow, controlling pressure, and managing temperature in a variety of different applications.

• Clog resistance: Globe valves are less likely to clog than other types of valves.

• Long service life: Globe valves have a relatively long lifespan.

• Contamination resistant: Globe valves are less prone to contamination than other types of valves.

What's the difference between globe valve and ball valve?

Globe valve vs ball valve

When it comes to choosing between globe valves and ball valves, it’s important to consider the specific requirements of your application. Here are some differences between the two types of valves that might help you make a decision:

Flow control: Globe valves are better suited for regulating flow, whereas ball valves are better for on/off control without pressure drop.

Ease of operation: Ball valves are easier to operate than globe valves because they only require a quarter turn to open or close.

Leakage rate: Globe valves have a lower leakage rate than ball valves, which makes them functional in a wider range of applications.

Pressure and temperature ratings: Ball valves are constructed to handle higher pressure and temperature ratings than globe valves due to their rigid metal-to-metal sealing design.

Material compatibility: Ball valves are typically made from stainless steel, brass, or bronze, which makes them resistant to corrosion, wear, and high-temperature environments. Globe valves, on the other hand, have various materials for housing, plug, and seat, which should be carefully selected based on the fluid being controlled.

Cost: Depending on the application, a ball valve can be more cost-effective due to its reduced maintenance and longer lifespan. Globe valves, on the other hand, have a higher initial cost and are often reserved for applications that demand precise flow control.

What's the difference between globe valve and gate valve?

Globe valve Vs gate valve

Globe Valve:

Design: A globe valve has a spherical body shape with an internal baffle and a movable disk (plug) that regulates flow by either fully or partially obstructing the flow path.

Functionality: Globe valves are primarily used for regulating or throttling flow, allowing for precise control of the flow rate.

They provide a good sealing capability and can handle moderate to high-pressure applications.

Gate Valve:

Design: A gate valve has a flat or wedge-shaped gate that moves perpendicular to the flow path, either fully opening or closing it.

Functionality: Gate valves are mainly used for isolation purposes, where the flow needs to be completely shut off or allowed to pass through fully.

They are not suitable for regulating flow due to their on/off operation. Gate valves are commonly used in applications with low-to-moderate pressures.

Common applications of globe valves

Globe valves are commonly used for flow control in a variety of applications. Here are some examples:

• Cooling water systems: Globe valves are used to regulate the flow of cooling water in industrial processes.

• Fuel oil systems: Globe valves are used to control the flow of fuel oil in power plants and other industrial settings.

• Feedwater or chemical feed systems: Globe valves are used to regulate the flow of feedwater or chemicals in industrial processes.

• Boiler and main steam vents and drains: Globe valves are used to regulate the flow of steam in boilers and other industrial settings.

• Turbine lube oil system: Globe valves are used to regulate the flow of lubricating oil in turbines.

• Pressure reduction: Globe valves are used to reduce pressure in pipelines.

• Pressure maintenance: Globe valves are used to maintain pressure in pipelines.

• Pressure relief: Globe valves are used to relieve pressure in pipelines.

• Altitude control: Globe valves are used to control altitude in aircraft and other applications.

Globe valve installation

Installing a globe valve is a relatively simple process, but it is important to follow the correct procedure to avoid potential problems 1. Here are the general steps for installing a globe valve:

Prepare the pipeline: Before installing the valve, make sure the pipeline is clean and free of debris.

Position the valve: Position the valve in the pipeline so that the flow direction is correct and the valve is accessible for operation and maintenance.

Install the valve: Install the valve in the pipeline using the appropriate fittings and gaskets.

Tighten the bolts: Tighten the bolts on the valve flanges to the recommended torque specifications.

Test the valve: Test the valve to ensure it is functioning properly and there are no leaks.

It is important to note that the installation process may vary depending on the specific type of globe valve and the application it is being used for. It is recommended to consult the manufacturer’s instructions for specific installation guidelines.

About us

Xi’an Thunli Electronic Technology Co., Ltd. Is a renowned supplier for globe valves for various industries. Our globe valves can be manufactured with material carbon steel, stainless steel, casting steel or forged steel. And our globe valves type includes: manual globe valves, electric globe valve, Y-type globe valve and gear-driven Y type globe valve. Here are some parameters for our globe valves.

Globe valve dimension and parameters:

If you are in search of globe valve, please feel free to contact us, our teams are glad for your service.