What You Need to Know About Globe Valves


yogesh
May 21, 2019
0
What You Need to Know About Globe Valves

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Valves are devices designed to stop or allow different types of liquid or gas to regulate flow transporting through the pipelines. There are different types of a valve which vary in terms of means on how to control the flow rate. One of the most commonly used valves is the globe valve. Many people don’t have the common knowledge of how it works. This causes a common malfunction in flow control which affects the functionality of the building as a whole.

That is why before purchasing, clients get a consultation to give them a broader view of which one suits their piping needs. Every client being catered to has a planned piping line to support. To ensure customer satisfaction, the valves need to comply with their requirements of how they will be used and for what material it will control.

With these said, here are the things you have to know about globe valves.

Understanding Globe Valves and its Uses

Understanding Globe Valves and its Uses

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Globe valves are designed to stop and start the transportation of materials through the pipes. They contain a disc which has the ability to fully allow the entry as well as to put it to a stop. Globe valves secure the control of whether to open or to close the passageway. These valves can keep up with higher pressure drop rates in comparison to plug, gate, and ball valves.

The design of valves is the top priority aligned to its quality to avoid malfunction and promote customer satisfaction. The name was derived from the spherical shape which blocks the passageway allowing and stopping the flow. Consider using globe valves as a more secure way of halting the flow because of the globe seal in between.

The flow pattern in using globe valves are usually through a globe in the center used to transport materials with secured control. They experience high chances of pressure drop, changing direction, and increasing resistance to flow.

Types of Globe Valves

As certain as different valves are, globe valves come in different types too. Depending on the building requirements for plumbing, they vary in application and angle. A globe valve is composed of a plug or a disc for opening and closing of the path. They are usually screwed or unscrewed and some are moved from left to right to regulate the flow. Below are the three types of globe valves and their uses.

Tee Globe Valve

Tee Globe Valve

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Tee is the most common globe valve. They are designed on a horizontal setting to give way to the stem and disc to move in a horizontal direction perpendicular to the piping line. Tee globe valves are often encountered in throttling services like control valves and bypass lines. It is considered as a good valve solution for throttling services.

Wye Globe Valve

Wye Globe Valve

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Wye-angled valves are usually used as an alternative for cases of a high-pressure drop. They are commonly found in globe valves where the stem and the seat are bent at 45-degree angle. These types of globe valves promote efficiency in controlling the rate of flow. This is best used for start-up operations and throttling services.

Angle Globe Valve

Angle Globe Valve

(Image Source: https://blog.craneengineering.net/the-quick-dirty-guide-to-globe-valves)

Angle globe valves bent at a 90-degree angle which helps in the controlled regulation of liquid or gas flow rate. They are usually used in applications which involve pulsating flow with the inability to control the slugging effect when the flow pulsates.

Advantages of Using Globe Valves

Why should you use globe valves instead of other valves? A client should be well-oriented about globe valves work to identify if it is the best fit for the designated application. The advantages of using Globe Valves are as follows:

  • Secured shut-off features
  • Energy efficient turning
  • Easy to operate
  • Good throttling capability
  • The disc is not dependent on the stem allowing the valve to be used as a stop-check valve
  • Longer life span (depending on the quality of materials used)

Disadvantages of Using Globe Valves

In contrary to the advantages are its disadvantages. Globe valves have its own strengths and weaknesses which is why it is advisable to seek consultation. The disadvantages of Globe Valves are as follows:

  • Shut off flow affecting the seat
  • Higher encounters of pressure drop
  • Requires a larger demand for force

Common Applications of Globe Valves

Globe valves are considered as a typical type of valves which is flexible in terms of utilization. The common applications are as follows:

  • Seals and drains of turbines
  • Water systems supporting cooler temperatures
  • Lube oil system of turbines
  • Drain extraction systems, feed water, condensed air extraction, and chemical feed

Conclusion

Globe valves are very efficient and effective when it comes to achieving secured liquid and gas flow. They are established to be the standard of the industry when it comes to controlling and throttling of flow rate of liquids. With the different variations it offers, there is a perfect globe valve that will suit a specific application. With XHVAL globe valve, you will be able to attend to the needs of your client with uncompromised quality of the valves they offer.

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