Custom Flanges

Whether you’re an engineer, estimator, or purchasing agent, all we need are some key details from your drawings to create a custom ring flange that fits your specifications. Just provide us with the outer diameter (OD), inner diameter (ID), thickness, bolt pattern, material grade, and we can quote for one piece. Yes, there’s no minimum order quantity even for custom orders. Additionally, large quantities qualify for discounts, making customization more accessible. So next time you need a specialized flange, remember, we’re here for you.

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Types of Custom Flanges

  1. Weld Neck Flanges: Weld neck flanges feature a tapered hub that facilitates smooth welding to the adjoining pipe. These flanges are commonly used in high-pressure applications due to their excellent structural integrity and resistance to deformation.
  2. Slip-On Flanges: Slip-on flanges are designed to slide over the end of the pipe and then welded in place. They are easy to install and suitable for low-pressure systems where alignment is not critical. Slip-on flanges are often used in applications where frequent disassembly is not required.
  3. Blind Flanges: Blind flanges are used to seal the end of a pipe, blocking off the flow of fluid or gas. They are typically installed at the end of a pipeline or at points where temporary or permanent closure is necessary. Blind flanges come in handy during system maintenance or testing procedures.
  4. Lap Joint Flanges: Lap joint flanges consist of two separate components: a stub end and a backing flange. The stub end is welded to the pipe, while the backing flange is bolted to the adjacent flange. Lap joint flanges allow for easy alignment and are often used in systems that require frequent dismantling, such as in piping systems with rotating equipment.
  5. Socket Weld Flanges: Socket weld flanges feature a recessed area where the pipe is inserted and welded. These flanges are commonly used in small-diameter piping systems and are preferred in applications where space constraints prevent the use of larger flange types. Socket weld flanges provide a reliable connection and are resistant to leakage.

Materials Used for Custom Flanges

  1. Stainless Steel Series: This series includes various grades of stainless steel, such as:
    • 300 Series (e.g., 304, 316): Known for their corrosion resistance and versatility.
    • 400 Series (e.g., 410, 420): Offering high strength and wear resistance.
  2. Carbon Steel Series: Carbon steel is available in different grades, including:
    • ASTM A105: Commonly used for forged carbon steel flanges in low to moderate temperature and pressure applications.
    • ASTM A350: Suitable for flanges in high-temperature and high-pressure environments.
  3. Alloy Steel Series: Alloy steel flanges are available in various grades, including:
    • ASTM A182: Alloy steel flanges for high-temperature service, such as F11, F22, and F91.
    • ASTM A707: Alloy steel flanges for low-temperature service, such as L3, CL1, and L3M.
  4. Brass Series: Brass flanges are typically made from brass alloys such as:
    • C26000 (Cartridge Brass): Offering good machinability and corrosion resistance.
    • C36000 (Free-Cutting Brass): Known for its excellent machining properties.
  5. Nickel Alloy Series: Nickel alloys are used for custom flanges in highly corrosive environments, including:
    • Inconel (e.g., Inconel 600, Inconel 625): Offering excellent resistance to oxidation and corrosion.
    • Hastelloy (e.g., Hastelloy C276, Hastelloy C22): Suitable for severe chemical processing environments.

How Are Custom Flanges Manufactured?

The manufacturing process for custom flanges typically involves CNC machining or forging. CNC machining offers precision and versatility, allowing for complex designs and tight tolerances, while forging produces flanges with superior strength and durability.

Benefits of Using Custom Flanges

  • Tailored to specific requirements
  • Precise fit and alignment
  • Enhanced system performance
  • Reduced risk of leaks
  • Greater design flexibility

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turning milling CNC stainless steel 304 prototype

Our company specializes in providing comprehensive solutions for a diverse range of industries, including oil and gas, petrochemical, chemical processing, power generation, water treatment, and marine engineering. With our expertise and dedication to excellence, we offer tailored services and high-quality products to meet the unique needs of each sector. Whether it’s supplying custom flanges for critical pipeline projects in the oil and gas industry or delivering precision-engineered components for marine engineering applications, our team is committed to delivering reliable solutions that exceed expectations and drive success in every project we undertake.

Custom flanges serve to connect pipes, valves, and other equipment in industrial piping systems, ensuring a secure and leak-free connection.

The choice of material depends on factors such as temperature, pressure, corrosion resistance, and cost considerations.

Yes, custom flanges can be designed and manufactured to withstand high-pressure conditions, provided that the appropriate materials and design specifications are used.

While custom flanges may have higher initial costs due to their bespoke nature, they often offer long-term cost savings by reducing the need for additional components and minimizing downtime associated with leaks and maintenance.

The manufacturing lead time for custom flanges can vary depending on factors such as design complexity, material availability, and production capacity. It’s advisable to consult with us to obtain an accurate timeline for your specific project.

When you need it, provide the parts you need. We are ready to meet your flange requirements at any time. Modo Rapid has been engaged in custom precision flange manufacturing since 2005, and we believe we can help you find faster, more economical, and more professional solutions than our competitors. We are happy to learn more about your project today!