Offering a reliable way to connect pipe systems with the various equipment, valves, and other components of virtually any processing system, flanges are the second most used joining method after welding.
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Using flanges adds flexibility when maintaining piping systems by allowing for easier disassembly and improved access to system components.
A typical flanged connection is comprised of three parts:
In most cases, there are specific gasket and bolting materials made from the same, or approved materials as the piping components you wish to connect. Stainless Steel flanges are some of the most common. However, flanges are available in a wide range of materials so matching them with your needs is essential.
Other common flange materials include Monel, Inconel, Chrome Moly, and many others depending on the application.
The best option for your needs will depend on both the system in which you intend to use the flange and your specific requirements.
Flanges are not a one-type-fits-all sort of solution. Sizing aside, matching the ideal flange design to your piping system and intended usage will help to ensure reliable operation, a long service life, and optimal pricing.
Here’s a look at the most common flange types available.
Flange design is only the start when considering the ideal flange for your piping system. Face types are another characteristic that will have a major impact on the final performance and service life of your flanges.
Facing types determine both the gaskets needed to install the flange and characteristics related to the seal created.
Common face types include:
Many face types also offer one of two finishes: serrated or smooth.
Choosing between the options is important as they will determine the optimal gasket for a reliable seal.
In general, smooth faces work best with metallic gaskets while serrated faces help to create stronger seals with soft material gaskets.
Apart from the functional design of a flange, flange dimensions are the most likely factor to impact flange choices when designing, maintaining, or updating a piping system.
However, you must consider how the flange interfaces with the pipe and the gaskets in use to ensure proper sizing.
Common considerations include:
Each of the above characteristics will have an influence on how the flange performs across a range of processes and environments.
So how can you tell which flanges are up to the task and which are not?
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Flanges are often classified based on their ability to withstand temperatures and pressures.
This is designated using a number and either the “#”, “lb”, or “class” suffix. These suffixes are interchangeable but will differ based on the region or vendor.
Common classifications include:
Exact pressure and temperature tolerances will vary by materials used, flange design, and flange size. The only constant is that in all cases, pressure ratings decrease as temperatures rise.
To help make comparison easier, flanges fall under global standards established by the American Society of Mechanical Engineers (ASME) -- ASME B16.5 & B16.47.
If you’re attempting to replace or verify existing parts, all flanges must include markers -- typically on their outer perimeter -- to aid in the process.
These markers also follow a strict order:
This guide offers a solid foundation of the basics of flange design and how to choose the ideal flange for your piping system. However, with a wide range of stainless steel flanges and other flange materials available, it is impossible to list every configuration, detail, or consideration.
Should you have questions, the Technical Sales Experts at Unified Alloys are ready to help. Serving industries and businesses across North America and Canada for more than 40 years, we understand the complexities of alloy piping and the needs of your industry. Call us today for additional information and to find the ideal flange, piping, and components for your next project.
There are many technical and engineering considerations to consider when it comes to large-scale construction and infrastructure projects. One of the most critical components of such projects is using industrial-grade flanges to handle the immense pressure and weight of various materials and fluids flowing through the pipelines. Many different types of flanges are available in the market, but ASME B16.5 flanges are widely considered the gold standard for their superior quality, durability, and versatility. In this blog post, we’ll explore the advantages of using ASME B16.5 flange in construction and infrastructure projects and why they should be your top choice for your next project.
ASME B16.5 Flanges are pipe fittings that connect piping systems in industrial and commercial applications. These flanges can be made from different materials such as carbon steel, stainless steel, alloy steel, aluminium and more. They come in various shapes, including slip-on, welding neck, socket weld, etc., to suit the required pressure ratings and functions. In addition, they feature built-in sealing surfaces that prevent leaks even when subjected to high pressures or temperatures. Furthermore, these flanges are highly durable with a long service life, making them ideal for industrial use!
One of the biggest advantages of ASME B16.5 flange is their ability to handle high-pressure and temperature conditions. These flanges are designed and engineered to meet the stringent quality standards of the American Society of Mechanical Engineers (ASME). They can withstand pressure ratings of up to psi and temperature ratings of up to °F, making them ideal for petroleum, chemical, and power generation applications.
ASME B16.5 flanges are available in a wide range of sizes, from ½ inch to 24 inches, and can be made from various materials, including carbon steel, stainless steel, and alloy steel. This versatility makes them suitable for various applications, from small-scale residential plumbing projects to large-scale industrial construction projects.
ASME B16.5 flanges are designed with ease of installation and maintenance in mind. They feature a simple bolt-connection design that makes it easy to install and disassemble the flanges, which saves time and reduces labour costs. Additionally, most ASME B16.5 flanges are compatible with gaskets and other sealing materials, which ensures leak-free operation and reduces the risk of equipment damage or failure.
Despite their superior quality and durability, ASME B16.5 flanges are surprisingly cost-effective. They are widely available from reputable manufacturers at competitive prices, which makes them a popular choice for construction and infrastructure projects of all sizes. Additionally, because of their ease of installation and maintenance, ASME B16.5 flanges can help reduce labour costs and minimize downtime, translating into significant cost savings over the long term.
ASME B16.5 flanges are designed and manufactured to comply with the strict quality standards set by industry organizations such as the ASME and the American Petroleum Institute (API). They are also subject to rigorous testing and inspecting measures to ensure safety regulations and standards compliance. This level of quality assurance
makes ASME B16.5 flanges a safe and reliable choice for construction and infrastructure projects where regulatory compliance is critical.
ASME B16.5 flanges are an excellent choice for construction and infrastructure projects of all types and sizes. They offer superior quality, durability, and versatility, all while being cost-effective and easy to install and maintain. Whether you’re working on a large-scale industrial project or a small-scale residential plumbing project, ASME B16.5 Flanges are a reliable solution you can count on to meet your needs. When selecting flanges for your next project, consider ASME B16.5 flanges for their numerous advantages and benefits.
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