What is the function of a flange valve?

A flange valve is designed to effectively manage fluid or gas flow in various industries’ pipe systems while providing a dependable connection to avoid leakage.

Furthermore, the function of a flange valve includes ease of installation, evenly distributed load, and much more in industrial settings.

As a professional manufacturer of high-quality valves, we specialize in delivering solutions that are adapted to your specific requirements, and we can certainly assist you in understanding how this equipment works.

So, keep reading to discover more about the many functions of a flange valve, their specific uses, and so on.

Function of a Flange Valve or Flange End Valve

A flange valve, also known as a flange end valve, controls, manages, and stops the flow of material within pipes, which can be liquids, gases, or slurries.

They may do this by either entirely or partially blocking or opening the pipeline, which further assists to manage the pressure within the system too.

The way that they manage the flow of fluids or gases while linked to a pipe varies depending on the type of valve.

For example, a ball flange valve aligns the sealing component’s hole with the pipeline to allow flow while turning it 90 degrees to stop it. 

Aside from being able to isolate flow from a pipeline’s certain sections, another function of a flange valve is to make strong bolted connections to pipes.

Flange Valve Purpose in Industrial Systems

In addition to flow management, flange valves have other key roles in the industry system to ensure reliable and safe pipeline, including:

• System Integrity: The valve’s flanges and seals or gaskets further prevent leaks in challenging conditions such as high pressure, extreme temperature, or corrosive material.
• Load Distribution: The flanges help to spread the pressure evenly over the surface, making the joint stronger and less likely to break.
• Maintenance Facilitation: They can stop flow in a specified pipe portion, and the flange connections allow the valve to be removed without breaking the pipeline. The flange also makes it easy to reattach the valve to the pipe. 

One-Piece Flange Valve Connection: Applicable Certifications 

The flange valves, including the one-piece flange valve, require necessary certifications, which are determined by their function and industry requirements.

Common certificates include:

• API certifications (e.g., API 6A and API 607): required for valves used in high-pressure and high-temperature environments to ensure that the valve’s engineering, production, and performance are appropriate for wellhead and pipeline systems.
• ASME certifications (e.g., ASME B16.5): Provide pressure-temperature ratings and dimensional valve requirements for common industrial, petrochemical, and power-generating applications.
• FDA and NSF certifications: For one-piece flange valves used in the food, pharmaceutical, and drinking water industries, with an emphasis on preventing contamination and hygienic safety.

Corrosion Prevention for Valve Flange

A function of a flange valve is to handle flow in industries, so companies must be prepared to deal with corrosion.

According to various studies, including those by Soroosh Hakimian et al. and Michael Baker Jr., corrosion is common in valve joints, which can include flanges, due to fluid handling.

Michael Baker Jr.’s report also found that NACE calculated corrosion-related damage costs in the 1990s at $276 billion, with onshore gas and liquid transmission pipes representing $7 billion.

Therefore, businesses must take many kinds of steps to avoid costly adjustments, such as:

• Applying protective coatings and coverings like epoxy and polyurethane.
• Proper material selection, especially corrosion-resistant materials like stainless steel.

Furthermore, CLDG’s extensive production experience and advanced facilities enabled us to develop high-quality Forged Integral Flanged End Valves with unique characteristics that further prevent this, including:

• Use of corrosion-resistant sealing component (graphite)
• Compliance with strict standards including API 602 and ASME B16.34.
• Can be made from corrosion-resistant materials: F51, F316, F304

Valve with Flange: Conclusion

In addition to good flow management, the function of a flange valve has essential benefits such as preventing leaks, reliable connections, and ease of maintenance. 

This is so crucial for different industries, as they ensure system integrity, simpler maintenance, and so on. 

With years of expertise in valve manufacturing and a focus on quality, CLDG is committed to delivering exceptional and innovative valve solutions to ensure our clients’ satisfaction.
Request a product catalog to discover more about the entire range of flange valves we offer and begin a cooperation with one of the world’s leading industrial valve manufacturers!