Welcome to the world of Alkun Steel, where precision engineering meets unparalleled reliability in flange solutions. As one of the leading suppliers of flanges in South Africa, Alkun Steel prides itself on offering a comprehensive range of high-quality flange products to cater to diverse industrial needs. In this blog, we delve into the myriad types of flanges supplied by Alkun Steel, exploring their functionalities, applications, and the unparalleled craftsmanship that goes into their production. Whether in the oil and gas industry, petrochemical sector, marine engineering, or any other field requiring robust piping solutions, Alkun Steel stands ready to exceed your expectations with our top-tier flange offerings.

Different Types of Flange & Their Uses 

Slip-on Flange Supplier in SOUTH AFRICA

Slips onto the pipe and then welded for a secure connection.

Weld Neck Flange Supplier in SOUTH AFRICA 

This flange has a long tapered hub for welded connections, which is ideal for high-pressure applications.

Blind Flange Supplier in SOUTH AFRICA 

This flange seals the end of a pipe or vessel and is used for temporary blockage or future expansion.

Socket Weld Flange Supplier in SOUTH AFRICA 

Designed for smaller diameter pipes, welded for a tight seal.

Orifice Flange Supplier in SOUTH AFRICA 

Used for flow measurement or restriction in pipelines.

RTJ Flange Supplier in SOUTH AFRICA

Uses a ring joint gasket for high-pressure applications.

Threaded Flange Supplier in SOUTH AFRICA 

Features threads for easy installation and removal.

Lap Joint Flange Supplier in SOUTH AFRICA  

It allows for easy alignment of bolt holes and is ideal for non-standard connections.

Spectacle Blind Flange Supplier in SOUTH AFRICA 

This flange combines the functionality of a blind flange and a spacer to isolate sections of the piping system.

Grooved Flange Supplier in SOUTH AFRICA 

Uses grooves and gaskets for easy assembly and disassembly.

Square Flange Supplier in SOUTH AFRICA 

Typically used in square tubing or structures.

Marine Flange Supplier in SOUTH AFRICA 

This flange is designed to meet Japanese industrial standards and is suitable for marine applications.

Carbon Steel Flange Supplier in SOUTH AFRICA 

Carbon steel flanges are essential for piping systems to connect pipes, valves, pumps, and other equipment. They are made from carbon steel, a steel alloy primarily composed of iron and carbon, with different elements added to enhance properties like strength, hardness, and durability. Carbon steel flanges are known for their strength, resistance to corrosion, and affordability, making them widely used in various industrial applications.

Several carbon steel flanges are designed for specific purposes and applications. Some of the most common types include:

1. Slip-on Flanges in SOUTH AFRICA (SO): These flanges have a slightly larger bore diameter than the outside diameter of the pipe. They are slipped over the pipe and then welded at the inner and outer edges, providing a strong and secure connection.

2. Weld Neck Flanges in SOUTH AFRICA (WN): Weld neck flanges feature a long, tapered hub that provides an ideal pipe connection. They are welded to the pipe and the adjoining pipe, offering excellent strength and stability, particularly in high-pressure and high-temperature applications.

3. Blind Flanges in SOUTH AFRICA (BL): Blind flanges seal the end of a pipe or vessel. They are typically used in applications where future expansion might be needed or temporarily block off a pipeline.

4. Socket Weld Flanges in SOUTH AFRICA (SW): Socket weld flanges are designed for use with smaller diameter pipes. They are welded directly onto the pipe, creating a smooth bore and a tight seal.

5. Threaded Flanges in SOUTH AFRICA: These flanges have internal threads that allow them to be screwed onto the pipe. They are commonly used in low-pressure applications and where welding is not feasible.

6. Lap Joint Flanges in SOUTH AFRICA (LJ): Lap joint flanges are used with stub ends. They allow for easy alignment of bolt holes and are ideal for non-standard connections or systems requiring frequent dismantling.

7. Orifice Flanges in SOUTH AFRICA: Orifice flanges are specifically designed for flow measurement or restriction applications. They feature a small orifice opening that can be used with an orifice plate to measure flow rates.

8. Ring-Type Joint (RTJ) Flanges in SOUTH AFRICA: RTJ flanges use a ring joint gasket to create a tight seal in high-pressure and high-temperature applications. They are commonly used in the oil and gas industries.

These are just a few examples of the many carbon steel flanges available, each with unique features and advantages suited to different piping requirements.

Slip-on CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Weld Neck CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Blind CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Socket Weld CS (Carbon Steel) Flange in SOUTH AFRICA 

Orifice CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

RTJ (Ring Type Joint) CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Threaded CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Lap Joint CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Spectacle Blind CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Grooved CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Square CS (Carbon Steel) Flange Supplier in SOUTH AFRICA 

Marine CS (Carbon Steel) Flange supplier in SOUTH AFRICA 

Stainless Steel Flange Supplier in SOUTH AFRICA 

Stainless steel flanges are made from stainless steel, a corrosion-resistant alloy known for its durability, strength, and resistance to rust and corrosion. They are widely used in various industries, including chemical processing, oil and gas, food processing, pharmaceuticals, and water treatment, where corrosion resistance and hygiene are essential.

Here are the different types of stainless steel flanges:

1. Slip-on Stainless Steel Flange in SOUTH AFRICA: These flanges have a bore slightly larger than the outer diameter of the pipe. They are slipped over the pipe and then welded on both sides for a secure connection.

2. Weld Neck Stainless Steel Flange in SOUTH AFRICA: These flanges have a long tapered hub designed to provide an ideal pipe connection. They are welded inside and outside to ensure strength and stability, especially in high-pressure and high-temperature applications.

3. Blind Stainless Steel Flange in SOUTH AFRICA: These flanges seal the end of a pipe or vessel. They are commonly used in applications where future expansion may be needed or to temporarily block off a pipeline.

4. Socket Weld Stainless Steel Flange in SOUTH AFRICA: Designed for smaller diameter pipes, these flanges are welded for a tight seal. They feature a recessed area to insert the pipe, providing a smooth flow path.

5. Threaded Stainless Steel Flange in SOUTH AFRICA: These flanges have threads machined onto their inner bore, allowing them to be screwed onto the pipe for easy installation and removal.

6. Lap Joint Stainless Steel Flange in SOUTH AFRICA: These flanges allow for easy alignment of bolt holes. They are often used in non-standard connections or where the alignment of the bolt holes is critical.

7. JIS/Marine Stainless Steel Flange in SOUTH AFRICA: Designed to Japanese Industrial Standards, these flanges are suitable for marine applications. They come in various pressure ratings, such as 5k, 10k, pn6, and 16k, catering to different requirements in aquatic environments.

Each type of stainless steel flange offers specific features and benefits, making them suitable for various applications across different industries.

Slip-on SS (Stainless Steel) Flange Supplier in SOUTH AFRICA 

Weld Neck SS (Stainless Steel) Flange Supplier in SOUTH AFRICA 

Blind SS (Stainless Steel) Flange Supplier in SOUTH AFRICA 

Socket Weld SS (Stainless Steel) Flange Supplier in SOUTH AFRICA 

Threaded SS (Stainless Steel) Flange Supplier in SOUTH AFRICA 

Lap Joint SS (Stainless Steel) Flange Supplier in SOUTH AFRICA 

Marine SS (Stainless Steel) Flange supplier in SOUTH AFRICA 

Conclusion 

                In conclusion, Alkun Steel stands as a beacon of excellence in the realm of flange supply in South Africa. With an unwavering commitment to quality, precision, and customer satisfaction, we continue to elevate industry standards by delivering flange solutions that meet and exceed expectations. Whether slip-on, weld neck, blind, socket weld, or any other flange type, Alkun Steel ensures that every product leaving our facilities embodies reliability, durability, and performance. Trust Alkun Steel for all your flange needs, and experience the difference that excellence makes in your industrial endeavours.