Welcome to YANHAO, your premier destination for high-quality 12″ pipe flanges. As a leading China flange manufacturer and supplier in the industry, we take pride in offering a wide range of 12″ pipe flange solutions that meet the highest standards of quality and performance. Our commitment to expertise, authoritativeness, and trustworthiness ensures that you’ll find the perfect flange for your needs.


Product Overview

Here are the detailed specifications for the 12″ Pipe Flange:

SpecificationDetailed Description
Size12 inches (Inches)
Pressure RatingANSI 150, ANSI 300, ANSI 600, ANSI 900, ANSI 1500, ANSI 2500
MaterialStainless Steel, Carbon Steel, Alloy Steel, or other specialized alloy materials (per customer requirements)
Flange TypeWeld Neck, Slip-On, Blind, Threaded, Forged, Lap Joint, Threaded Neck, Socket Weld, Flat Face, or other specialized types (per customer requirements)
Surface FinishSmooth, Raised Face, Concave Face, Oval, or other specialized surface finishes (per customer requirements)
Gasket CompatibilityDesigned for compatibility with various gasket materials, including rubber, metal, graphite, and others, to ensure effective sealing.
The detailed specifications for the 12″ Pipe Flange

These specifications provide a comprehensive overview of the 12″ Pipe Flange, including its size, pressure rating, material, flange type, surface finish, and gasket compatibility. If you require more information or a quotation, please feel free to contact our team, and we will provide personalized assistance and support.

Size and Dimensions

YANHAO takes pride in offering an extensive selection of 12″ pipe flanges, each thoughtfully designed to accommodate a diverse range of project requirements. Our commitment to providing a variety of sizes and dimensions ensures that you’ll find the perfect fit for your specific needs.

  • Comprehensive Selection: Our catalog boasts a wide array of 12″ pipe flanges, ensuring that you have access to a comprehensive selection of sizes and dimensions. This diversity enables you to precisely match the flange to your project’s unique specifications, whether you’re working on a large industrial undertaking or a smaller-scale application.
  • Precision Engineering: Each of our 12″ pipe flanges undergoes meticulous precision engineering. They are crafted to meet exacting standards, providing you with a secure and reliable connection while optimizing fluid flow within your piping system.
  • Custom Solutions: Recognizing that no two projects are identical, YANHAO offers custom solutions for 12″ pipe flanges. If your project necessitates flanges with specific dimensions or features, our expert team can collaborate with you to create tailor-made solutions that align precisely with your requirements.
  • Quality Assurance: Rest assured that every 12″ pipe flange from YANHAO goes through stringent quality control processes, ensuring that it not only meets but often exceeds industry standards. You can have full confidence that our flanges are engineered for long-lasting performance, even in the most demanding environments.

By selecting YANHAO, you’re not just choosing from a diverse range of sizes and dimensions; you’re choosing a partner that’s committed to precision, quality, and customization to guarantee the success of your project. Explore our selection today to identify the ideal 12″ pipe flange for your unique application.


At YANHAO, we offer a range of 12″ pipe flanges meticulously crafted from various materials, each chosen to provide exceptional durability and resistance to corrosion.

  • Carbon Steel: Our carbon steel 12″ pipe flanges are ideal for applications where strength and durability are paramount. They exhibit robust performance and a high resistance to corrosion, making them suitable for a wide range of industrial environments.
  • Stainless Steel: For projects that demand superior corrosion resistance, our stainless steel 12″ pipe flanges are an excellent choice. They offer exceptional protection against rust and chemical corrosion, making them perfect for applications where environmental factors play a significant role.
  • Alloy Steel: When your projects require both strength and reliability, our alloy steel 12″ pipe flanges are the solution of choice. These flanges provide high-strength characteristics and are well-suited for critical applications across various industries.

Our diverse selection of materials ensures that you can confidently choose the 12″ pipe flanges that best align with your project’s specific needs, no matter the environmental challenges you face.

Flange Types

YANHAO offers a comprehensive range of flange types, each meticulously designed to cater to different applications and installation methods.

  • Weld Neck Flanges: These flanges feature a tapered hub, making them well-suited for high-pressure and high-temperature applications. They are designed for butt-welding to pipes, providing a strong and reliable connection.
  • Slip-On Flanges: Easily installed by sliding them over the pipe and welding them in place, slip-on flanges are popular in low-pressure applications where ease of installation is essential.
  • Blind Flanges: These solid discs are used to close off the end of a pipe system or vessel. They are often employed for maintenance purposes or to block off a pipe that is no longer in use.
  • Socket Weld Flanges: Featuring a socket at the bore, socket weld flanges ensure smooth flow and easy installation with a socket weld connection. They are commonly used in smaller pipe sizes and high-pressure systems.

Choosing the right flange type from YANHAO’s diverse range ensures that your project benefits from secure, efficient, and reliable connections tailored to your specific application requirements.



YANHAO’s versatile 12″ pipe flanges find suitability across a broad spectrum of applications, demonstrating their adaptability and reliability in various industries. Whether you’re operating in challenging environments or standard applications, our flanges deliver exceptional performance. Here are some key industries where our 12″ pipe flanges excel:

  • Oil and Gas: In the demanding world of oil and gas exploration, production, and distribution, our 12″ pipe flanges play a vital role. They provide secure connections in pipelines, refineries, and offshore platforms, ensuring the safe and efficient transport of hydrocarbons.
  • Petrochemical: The petrochemical industry relies on our flanges for their robustness and corrosion resistance. They are integral components in the production of chemicals, plastics, and other petrochemical products.
  • Power Generation: Whether it’s fossil fuel-based or renewable energy, our 12″ pipe flanges contribute to the reliability of power generation systems. They are used in power plants, including coal, natural gas, nuclear, and renewable energy facilities, to handle steam, water, and various fluids.
  • Water Treatment: Clean and safe water is essential, and our 12″ pipe flanges are trusted in water treatment facilities for their resistance to corrosion. They are used to transport water and various chemicals for treatment processes.
  • Chemical Processing: The chemical industry demands high-performance components, and our flanges meet those demands. They are utilized in the transport of aggressive chemicals, ensuring the integrity of chemical processing systems.
  • Construction: Our flanges are also integral in the construction industry, where they are employed in plumbing, HVAC systems, and structural applications, providing reliable connections for various construction projects.

YANHAO’s commitment to quality and performance makes our 12″ pipe flanges a preferred choice in these and many other industries. With their versatility and dependability, you can trust our flanges to meet the specific requirements of your application, no matter how challenging or critical it may be.

Why Choose YANHAO?

When it comes to selecting the right 12″ pipe flanges for your projects, choosing YANHAO is a decision that brings a multitude of benefits. Here are compelling reasons why you should make us your trusted partner:

  • Extensive Selection: YANHAO offers an extensive and diverse inventory of 12″ pipe flanges. Our commitment to providing a wide range of sizes, materials, and flange types ensures that you can find the perfect solution that precisely fits your unique needs. No matter the complexity or scale of your project, we have the right flange for you.
  • Quality Assurance: Quality is the cornerstone of our operations. We adhere to stringent quality control processes to guarantee that every 12″ pipe flange we supply not only meets but often exceeds industry standards. With YANHAO, you can trust that you’re receiving products of the highest quality, engineered for durability and performance.
  • Competitive Pricing: We understand the importance of staying within budget without compromising on quality. YANHAO offers competitive pricing that allows you to access top-quality 12″ pipe flanges while maintaining cost-effectiveness. Our pricing model ensures that you receive exceptional value for your investment.
  • Reliable Customer Support: At YANHAO, our dedication to customer satisfaction is unwavering. Our experienced and dedicated customer support team is readily available to assist you with product selection, technical inquiries, and any other concerns you may have. We are committed to providing you with the support you need to make informed decisions and ensure the success of your projects.

In summary, choosing YANHAO means gaining access to an extensive selection of high-quality 12″ pipe flanges, backed by our commitment to excellence and affordability. Our reliable customer support ensures that you receive the assistance you need throughout your project journey. Trust in YANHAO for all your 12″ pipe flange needs and experience the difference that expertise, quality, and customer-centric service can make.

Lewis Liu

Hello, I am Lewis Liu, a professional sales engineer with over ten years of experience in the flange fittings industry. I am highly knowledgeable in flange selection, installation, and maintenance. I am passionate about providing customers with the best solutions to ensure their pipeline systems run smoothly, safely, and reliably.

If you have any questions or concerns regarding flange fittings for your pipelines, whether it’s about selection, material choice, specification requirements, or any other aspect, please feel free to contact me at any time. I am committed to offering professional advice and assistance to help you make informed decisions and meet your needs.

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