Welcome to YANHAO, your trusted source for premium industrial components. Explore our comprehensive range of 3″ pipe flange products, designed to meet the highest industry standards. Our commitment to expertise, authority, and trustworthiness makes us your top choice for dependable solutions.


Here are the detailed specifications for the 3″ Pipe Flange:

SpecificationDetailed Description
Size3 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 3″ Pipe Flange

These specifications provide a comprehensive overview of the 3″ 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.

Key Features of YANHAO’s 3″ Pipe Flanges

Material Options:

  • YANHAO offers a wide array of material choices for our 3″ Pipe Flanges, including stainless steel, carbon steel, and more. This diverse selection allows you to match the flanges precisely to the requirements of your projects.
  • Stainless Steel: Ideal for applications where corrosion resistance is crucial, stainless steel 3″ pipe flanges are durable and suitable for harsh environments.
  • Carbon Steel: Known for its strength and reliability, carbon steel flanges are often used in heavy-duty industrial applications.
  • Other Materials: Depending on your project’s needs, we can provide flanges in materials like alloy steel, PVC, or exotic alloys.

Flange Types:

  • YANHAO offers various types of 3″ Pipe Flanges to cater to your specific piping requirements:
  • Weld Neck Flanges: These flanges have a long neck, ideal for high-pressure applications and situations where reinforcement is necessary.
  • Slip-On Flanges: Easy to align and weld, slip-on flanges are suitable for lower-pressure applications and systems with frequent dismantling.
  • Socket Weld Flanges: Designed for use with small-bore pipes, socket weld flanges provide excellent sealing in high-pressure applications.
  • Blind Flanges: Used to seal the end of a pipe system, blind flanges are commonly used in applications where future expansion might be necessary.

Custom Solutions:

  • YANHAO understands that not all projects are the same. That’s why we offer custom 3″ Pipe Flange solutions tailored to your unique specifications.
  • Our experienced engineering team can work with you to design and manufacture flanges that meet your precise requirements, ensuring a perfect fit for your application.
  • Whether it’s specific dimensions, materials, or special features, YANHAO can deliver custom solutions that save you time and effort.

Corrosion Resistance:

  • Corrosion can be a significant challenge in many industrial applications. YANHAO’s 3″ Pipe Flanges are designed and manufactured with corrosion resistance in mind.
  • The choice of materials, such as stainless steel, and our commitment to quality ensure that our flanges can withstand corrosive environments, enhancing the longevity of your piping systems.
  • Whether you’re dealing with chemicals, saltwater, or other corrosive substances, our corrosion-resistant flanges provide peace of mind.

YANHAO’s 3″ Pipe Flanges are not only versatile but also crafted with precision and expertise, meeting the highest industry standards. With a focus on material diversity, flange types, customization, and corrosion resistance, our flanges are your dependable choice for a wide range of industrial applications. Trust YANHAO for quality and reliability in your piping projects.


Indeed, YANHAO’s 3″ pipe flanges are versatile and find applications across a broad spectrum of industries, including:

  1. Oil and Gas: In the oil and gas industry, our 3″ pipe flanges are crucial for connecting pipelines, ensuring safe and efficient transport of oil, natural gas, and other hydrocarbons.
  2. Petrochemical: Petrochemical plants rely on our flanges for their resistance to corrosive chemicals. They are used to join pipes in the processing of raw materials into valuable products like plastics, chemicals, and fuels.
  3. Chemical Processing: The chemical industry benefits from our flanges’ corrosion resistance and material options, allowing for the safe handling and transportation of various chemicals and solvents.
  4. Water Treatment: Water treatment facilities use our 3″ pipe flanges to construct pipelines for the treatment and distribution of clean water, ensuring public health and safety.
  5. Manufacturing: Manufacturers utilize our flanges for a wide range of applications, from creating specialized machinery to developing efficient production processes.
  6. Construction: The construction industry relies on our flanges for plumbing and HVAC systems in commercial and residential buildings, as well as for infrastructure projects such as bridges and tunnels.

YANHAO’s commitment to quality, diverse material options, and customization capabilities make our 3″ pipe flanges a trusted choice across these industries. We understand the unique demands of each sector and ensure our products meet or exceed the stringent requirements of their respective applications.

Certifications and Compliance

YANHAO (盐浩) takes pride in ensuring that our 3″ pipe flanges not only meet but exceed international standards and certifications, prioritizing safety and performance in all our products. Here are some of the key certifications and compliance standards you can rely on when choosing our flanges:

  1. ASME Certification: YANHAO’s 3″ pipe flanges are certified to meet the rigorous standards set by the American Society of Mechanical Engineers (ASME). This certification ensures the highest quality and safety standards for use in various industries.
  2. API Certification: For applications in the oil and gas industry, our flanges adhere to the standards of the American Petroleum Institute (API). These certifications guarantee that our products can withstand the demanding conditions of the oil and gas sector.
  3. ASTM Compliance: Our 3″ pipe flanges are designed and manufactured in accordance with the standards set by the American Society for Testing and Materials (ASTM). These standards cover material properties, dimensions, and testing procedures, ensuring product reliability.
  4. NACE Compliance: In environments with high corrosion potential, such as the petrochemical industry, our flanges comply with NACE (National Association of Corrosion Engineers) standards. This compliance ensures corrosion resistance and product durability.
  5. PED Certification: For European markets, our flanges conform to the Pressure Equipment Directive (PED), meeting the essential safety requirements for pressure equipment. This certification is crucial for ensuring safety in various applications.
  6. ANSI Standards: YANHAO’s 3″ pipe flanges are manufactured to comply with the standards set by the American National Standards Institute (ANSI), ensuring dimensional accuracy and compatibility.
  7. EN Standards: In addition to ANSI, our flanges adhere to European EN standards, ensuring global compatibility and suitability for diverse applications.

By choosing YANHAO’s 3″ pipe flanges, you can rest assured that you are receiving products that have been rigorously tested, certified, and designed to meet or exceed the industry’s highest standards. Our commitment to certifications and compliance underscores our dedication to providing safe and high-performance solutions for your industrial needs.

Why Choose Our 3″ Pipe Flanges?

Quality Assurance:

  • At YANHAO, quality is at the core of everything we do. Our 3″ pipe flanges go through a meticulous quality assurance process.
  • We conduct rigorous quality checks at every stage of production to ensure that our flanges not only meet but exceed industry specifications.
  • Our commitment to quality guarantees that you receive flanges that are durable, reliable, and built to last.


  • YANHAO offers an extensive catalog of 3″ Pipe Flanges, providing you with a wide array of options to meet your specific needs.
  • Our range includes different materials, finishes, and types of flanges, allowing you to select the perfect solution for your project.
  • Whether you require stainless steel for corrosion resistance or a specific type of flange for your application, we have you covered.

Expert Engineering:

  • YANHAO takes pride in its team of experienced engineers who possess the expertise needed to design and manufacture flanges with precision.
  • Our engineers are well-versed in the intricacies of pipe flange design, ensuring that each product is crafted to the highest standards.
  • With YANHAO, you can trust that your flanges are engineered by professionals who understand the nuances of industrial components.


  • When you choose YANHAO, you are selecting a partner you can rely on. Our 3″ pipe flanges are built to withstand the most demanding applications.
  • Whether it’s high-pressure systems in the oil and gas industry or corrosive environments in chemical processing, our flanges perform consistently and reliably.
  • You can count on YANHAO for dependable solutions that contribute to the success and safety of your projects.

In summary, YANHAO’s 3″ Pipe Flanges offer quality assurance, variety, expert engineering, and reliability. We understand the importance of these factors in industrial applications and are committed to providing products that meet and exceed your expectations. Trust YANHAO for your pipe flange needs, and experience the difference of working with a reliable and experienced supplier.

Contact Us

We encourage you to get in touch with us at YANHAO (盐浩) for all your 3″ pipe flange needs. Our team of experts is ready to assist you in selecting the right flanges for your project and addressing any inquiries or requests you may have. Here’s how you can reach us:

Contact Information:

  • Phone: Feel free to call us at +86 13313073735 during our business hours to speak directly with one of our knowledgeable team members.
  • Email: You can reach us via email at flanges.yh@gmail.com. Send us your questions, specifications, or quote requests, and we will respond promptly.
  • Online Form: Visit our website to fill out our convenient online contact form. Simply provide your name, contact information, and details about your inquiry or project, and we will get back to you as soon as possible.

At YANHAO, customer satisfaction is our priority, and we are committed to providing you with exceptional service. Whether you have questions, need a quote, or are ready to place an order, don’t hesitate to reach out to our team of experts. We look forward to serving your 3″ pipe flange needs and helping you achieve success in your projects.

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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