What is a Raised Face Flange?

Table of Contents

In mechanical piping systems, spines play a vital part in interfacing channels, valves, pumps, and other hardware. Among the different sorts of ribs, the raised face flange is especially outstanding for its plan and functionality.

Raised Face Flange Design

The ndustrial piping systems is a sort of rib characterized by a little raised segment around the bore. This raised range is outlined to concentrate more weight on a littler gasket zone, upgrading the seal’s judgment and avoiding spills. The stature of this raised confront changes depending on the weight lesson of the spine. For weight classes 150 and 300, the stature is ordinarily 1/16 inch, whereas for weight classes 400 and over, it is by and large 1/4 inch.

The plan of a raised face flange serves different purposes. Firstly, it permits for way better gasket compression. When jolts are fixed, the gasket is compressed more viably in the raised region, making a superior seal. This is especially critical in applications where tall weights and temperatures are included, as it minimizes the hazard of spills.

Secondly, the raised face flange design helps in the alignment and installation process. The raised face provides a visual and physical guide for aligning the flanges properly. This is crucial in maintaining the integrity of the piping system, as misaligned flanges can lead to significant operational issues, including leaks and mechanical failures.

Lastly, raised face flanges are designed to be compatible with a variety of gasket types. This versatility allows for their use in a wide range of applications and environments, further enhancing their utility in industrial settings.

Raised Face Flange Features

Raised face flanges come with a few unmistakable highlights that make them appropriate for a assortment of mechanical applications. These highlights contribute to their far reaching utilize and reliability.

One of the essential highlights of raised confront ribs is their capacity to handle high-pressure situations. The raised confront plan guarantees a solid and solid seal, which is basic in anticipating spills in high-pressure systems. This makes raised confront ribs perfect for applications in businesses such as oil and gas, petrochemical, and power era, where keeping up framework astuteness beneath tall weight is critical.

Another key highlight is their compatibility with a wide run of gaskets. Raised confront spines can be utilized with delicate, semi-metallic, and metallic gaskets, giving adaptability in choosing the suitable gasket fabric based on the particular application. This compatibility guarantees that the ribs can be utilized in different situations, counting those with tall temperatures and destructive substances.

The toughness and vigor of raised confront ribs are too striking highlights. They are regularly made from materials such as carbon steel, stainless steel, and combination steel, which give great resistance to erosion, wear, and mechanical push. This guarantees that the spines can withstand cruel working conditions and have a long benefit life.

Raised confront ribs are too outlined for simple establishment and upkeep. The raised confront gives a clear direct for arrangement, making the establishment handle clear. Also, the plan permits for simple review and upkeep, which is fundamental for guaranteeing the progressing unwavering quality and security of the piping system.

Raised Face Flange in Petrochemical Applications

In the petrochemical industry, maintaining the integrity and safety of piping systems is of utmost importance. Raised face flanges are extensively used in this sector due to their reliability and ability to provide a strong seal under high-pressure and high-temperature conditions.

One of the primary reasons raised face flanges are preferred in petrochemical applications is their ability to handle the demanding operating conditions typical of this industry. Petrochemical processes often involve high pressures, elevated temperatures, and the handling of corrosive and hazardous substances. The robust design and strong sealing capability of raised face flanges make them ideal for these environments.

The versatility of raised face flanges also makes them suitable for various applications within the petrochemical industry. They can be used in connecting pipes, valves, pumps, and other equipment, ensuring a secure and leak-free connection. This is critical in preventing leaks that could lead to operational disruptions, safety hazards, and environmental contamination.

Furthermore, raised face flanges are compatible with different types of gaskets, allowing for flexibility in material selection based on the specific needs of the application. For example, metallic gaskets can be used in high-temperature applications, while soft gaskets may be suitable for less demanding environments. This adaptability ensures that the flanges can provide a reliable seal in a wide range of conditions.

The use of raised face flanges in the petrochemical industry also supports compliance with industry standards and regulations. Ensuring that all components meet the required specifications is essential for maintaining safety and operational efficiency in petrochemical plants. Raised face flanges, designed and manufactured according to recognized standards, help in achieving this compliance.

ASME B16.5 Standard and ASME B31.3 Standard

The American Society of Mechanical Engineers (ASME) provides a comprehensive set of standards that govern the design, manufacture, and testing of flanges, ensuring safety and reliability in industrial applications. Two key standards relevant to raised face flanges are the ASME B16.5 and ASME B31.3 standards.

ASME B16.5 Standard

The ASME B16.5 standard covers pipe flanges and flanged fittings, specifying dimensions, materials, pressure-temperature ratings, and testing requirements. This standard ensures that flanges are manufactured to meet stringent quality and performance criteria, providing reliability and safety in their applications.

For raised face flanges, ASME B16.5 specifies the dimensions and tolerances for different pressure classes and sizes. This includes the height of the raised face, the diameter of the flange, the bolt circle diameter, and the number and size of bolt holes. By adhering to these specifications, manufacturers can produce flanges that are compatible and interchangeable, ensuring consistency and reliability in piping systems.

ASME B31.3 Standard

The ASME B31.3 standard, known as the Process Piping Code, provides guidelines for the design, materials, fabrication, assembly, inspection, and testing of piping systems. This standard is widely used in industries such as petrochemical, chemical, and petroleum refining, where process piping plays a critical role.

ASME B31.3 emphasizes the importance of using components that meet the required standards and specifications, including flanges. Raised face flanges manufactured according to ASME B16.5 are recognized as compliant with the B31.3 standard, ensuring that they can be used safely and reliably in process piping systems.

Compliance with these ASME standards is crucial for maintaining the safety and integrity of industrial piping systems. It ensures that the components used can withstand the operating conditions and perform reliably over their service life.

Flange Manufacturer

Hebei Pengrun Pipe Fittings Co, Ltd is a leading manufacturer of pipe fittings and flanges, with over 20 years of experience in the industry. The company specializes in producing high-quality flanges that meet international standards, including ASME, DIN, and ISO standards, ensuring reliability and safety across various applications.

In addition to high-quality products, Hebei Pengrun is known for its exceptional customer service. They provide technical support and guidance to help clients select the right flanges for their specific needs. The company’s extensive experience and expertise make them a trusted partner for clients seeking reliable and efficient piping solutions.

For those in need of high-performance raised face flanges, Hebei Pengrun Pipe Fittings Co, Ltd is a top choice. With their extensive product range, stringent quality power, and commitment to customer satisfaction, they deliver solutions that meet the highest standards of excellence.

If you are choosing your pipe fittings and flanges supplier, welcome to contact us at Lucy@pr-pipefittings.com.


1. American Society of Mechanical Engineers (ASME). (n.d.). ASME B16.5 Standard.

2. ASME B31.3 Process Piping Code. (n.d.).

3. Engineering Toolbox. (n.d.). Flange Dimensions and Pressure Ratings.

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Lucy yang

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