Welcome to Yanhao (YANHAO), your trusted source for premium industrial solutions. At Yanhao, we take pride in our commitment to excellence and our unwavering dedication to providing top-quality products to industries worldwide. Our 44″ Pipe Flange is a testament to our expertise in engineering and manufacturing, and we invite you to explore the features, specifications, and applications of this exceptional product. Whether you are in the oil and gas, chemical, or construction industry, our 44″ Pipe Flange is engineered to meet your most demanding requirements. Join us on this journey as we delve into the world of precision engineering and unparalleled reliability.

Product Specifications

Our 44″ Pipe Flange by Yanhao (YANHAO) is engineered to meet the highest industry standards and is meticulously crafted to ensure optimal performance and reliability. Below, we provide detailed specifications to help you understand the quality and precision that go into this product:

Materials Used in Manufacturing:

  • Material Type: We employ a range of high-quality materials, including carbon steel, stainless steel, and alloy steel, to meet various application requirements.
  • Material Standards: Our materials adhere to international standards such as ASTM A105, ASTM A350, ASTM A182, and more, ensuring exceptional durability and corrosion resistance.
  • Material Traceability: We maintain comprehensive traceability records for all materials used, guaranteeing product quality and integrity.

Dimensions, Weight, and Tolerance Levels:

  • Outer Diameter: The 44″ pipe flange features an outer diameter of precisely 44 inches, providing compatibility with large pipelines.
  • Inner Diameter: The inner diameter is designed to accommodate pipes of the same size securely.
  • Thickness: Our flanges are available in various thicknesses to suit different pressure and temperature requirements.
  • Weight: The weight of the flange may vary depending on the material and thickness chosen, ensuring suitability for a wide range of applications.
  • Tolerance Levels: We adhere to strict tolerance levels, meeting or exceeding industry standards to ensure a precise fit and reliable performance.

Compliance with Industry Standards and Certifications:

  • ANSI/ASME Standards: Our 44″ Pipe Flange complies with ANSI/ASME B16.5 and B16.47 standards, ensuring compatibility with a wide range of pipelines and equipment.
  • API Certification: For applications in the oil and gas industry, our flanges are API certified to guarantee performance and safety.
  • ISO Quality Management: Yanhao (YANHAO) operates under an ISO 9001 certified quality management system, demonstrating our commitment to quality assurance and continuous improvement.
  • Third-Party Testing: We subject our products to rigorous third-party testing, including non-destructive testing (NDT), hydrostatic testing, and visual inspection, to ensure they meet or exceed industry requirements.

Our 44″ Pipe Flange stands as a testament to our dedication to precision engineering, high-quality materials, and compliance with industry standards. With Yanhao, you can trust in the reliability and performance of our products for your critical industrial applications.

Benefits and Features

Our 44″ Pipe Flange by Yanhao (YANHAO) offers a host of key features and benefits that make it a standout choice for a wide range of industrial applications. Explore the advantages that set our flange apart:

Key Features:

  1. Precision Engineering: Our 44″ Pipe Flange is meticulously crafted with precision engineering, ensuring tight tolerances and a perfect fit. This level of accuracy minimizes the risk of leaks and enhances overall system efficiency.
  2. Versatility: Designed to accommodate large pipelines, this flange is suitable for a diverse array of applications, including oil and gas transmission, petrochemical processing, water treatment, and more.
  3. Durable Materials: Crafted from high-quality materials such as carbon steel, stainless steel, and alloy steel, our flanges are built to withstand harsh environmental conditions and deliver long-lasting performance.
  4. Corrosion Resistance: The materials used in our flanges are chosen for their exceptional resistance to corrosion, ensuring that the flange remains reliable and maintenance-free even in corrosive environments.
  5. Pressure Rating: Our flange is available in various pressure ratings, allowing you to select the ideal option for your specific project, whether it’s a low-pressure application or a high-pressure system.
  6. Easy Installation: The design of our flange simplifies installation, reducing downtime and labor costs. Its user-friendly features make it an excellent choice for both new installations and maintenance projects.

Suitability for Various Applications:

  • Oil and Gas Industry: The 44″ Pipe Flange is a trusted choice in the oil and gas sector for connecting pipelines, offshore platforms, and refineries. Its corrosion resistance and durability ensure reliable performance in these demanding environments.
  • Chemical Processing: In chemical plants, where exposure to corrosive substances is common, our flange’s resistance to chemical corrosion makes it an ideal choice for joining pipelines and equipment.
  • Water Treatment: For water treatment facilities and pipelines, our flange’s precision engineering and corrosion resistance guarantee the integrity of water distribution systems.
  • Construction and Infrastructure: Infrastructure projects such as bridges, tunnels, and wastewater systems benefit from the versatility of our flange, which can be customized to meet specific project requirements.

Durability, Corrosion Resistance, and Long-Term Performance:

Our 44″ Pipe Flange is engineered for longevity. Its durability ensures it can withstand the test of time in challenging industrial environments. With its corrosion-resistant materials, you can count on it to maintain its structural integrity, preventing leaks and system failures. Whether your application demands high-pressure performance or exceptional reliability, our flange consistently delivers long-term performance, reducing maintenance costs and enhancing overall system efficiency. Trust in Yanhao (YANHAO) for a product that prioritizes durability, corrosion resistance, and long-term reliability in all your critical applications.

Industries and Applications

Our 44″ Pipe Flange by Yanhao (YANHAO) finds widespread use across various industries, owing to its versatility, reliability, and adherence to the highest quality standards. Discover how our product caters to the specific needs of different sectors and showcases our expertise in serving diverse industries:

Commonly Served Industries:

  1. Oil and Gas: Our flanges are a vital component in the oil and gas industry, used for connecting pipelines, offshore drilling rigs, and refining processes. Their durability and corrosion resistance ensure safe and efficient operations even in harsh environments.
  2. Chemical Processing: Chemical plants rely on our flanges to join pipelines handling corrosive chemicals. Their resistance to chemical corrosion and precise engineering contribute to the integrity of critical chemical processes.
  3. Water and Wastewater Treatment: In the water treatment sector, our flanges play a crucial role in connecting pipelines and equipment, helping maintain the quality and reliability of water distribution systems and wastewater treatment facilities.
  4. Construction and Infrastructure: Infrastructure projects like bridges, tunnels, and wastewater systems benefit from our flanges’ adaptability and precision. These projects often have unique requirements, and our product can be customized to meet specific needs.
  5. Power Generation: Power plants, including thermal, nuclear, and renewable energy facilities, utilize our flanges to connect piping systems. Their ability to handle high pressures and temperatures makes them a reliable choice in the power generation sector.

Specific Applications:

  • Offshore Oil Rigs: Our flanges are essential for connecting pipelines and components on offshore oil rigs, where they withstand harsh marine conditions and ensure reliable oil extraction.
  • Refineries: In refineries, our flanges facilitate the transportation of crude oil and its derivatives, contributing to efficient refining processes.
  • Chemical Reactors: Chemical reactors require the utmost precision and resistance to chemical corrosion, making our flanges a top choice for joining critical components.
  • Municipal Water Systems: Municipalities rely on our flanges to maintain safe and consistent water distribution, preventing leaks and ensuring clean water access for communities.
  • Industrial Boiler Systems: Industrial boiler systems often operate at high pressures and temperatures, making our flanges an ideal choice for connecting crucial boiler components.

At Yanhao (YANHAO), our expertise lies in understanding the unique needs of each industry and delivering tailored solutions. We work closely with clients across diverse sectors, providing not only high-quality flanges but also expert guidance and support. Our commitment to precision engineering, adherence to industry standards, and a track record of successful applications underscore our expertise in serving these industries. Trust us to be your partner in achieving reliable and efficient operations across various sectors.

Manufacturing Process

At Yanhao (YANHAO), the production of our 44″ Pipe Flange is a testament to our dedication to precision engineering, quality, and safety. We take great pride in delivering a product that meets the highest industry standards. Here’s an overview of our meticulous manufacturing process:

1. Material Selection:

  • Our manufacturing process begins with the careful selection of high-quality materials, including carbon steel, stainless steel, and alloy steel, based on the specific requirements of the project.

2. Cutting and Shaping:

  • State-of-the-art cutting and shaping equipment are employed to cut the selected materials into the necessary shapes and dimensions for the flange.

3. Forging or Casting:

  • Depending on the material and design specifications, the materials are either forged or cast to create the initial flange shape.

4. Heat Treatment:

  • Heat treatment processes are meticulously controlled to optimize the material’s mechanical properties, enhancing strength and durability.

5. Precision Machining:

  • Our flanges undergo precision machining, where they are turned, bored, and drilled to achieve the exact dimensions required for a perfect fit.

6. Surface Finish:

  • Surface finishes such as grinding, polishing, and coating are applied to enhance corrosion resistance and ensure a smooth, leak-free seal.

7. Quality Control Measures:

  • Throughout the manufacturing process, rigorous quality control measures are implemented to check dimensions, tolerances, and material properties.
  • Non-destructive testing (NDT) methods such as ultrasonic testing and magnetic particle inspection are conducted to detect any flaws or defects.

8. Assembly and Inspection:

  • Flanges are carefully assembled, and every unit undergoes a final inspection to verify conformance to industry standards and customer specifications.

9. Packaging and Shipping:

  • Our flanges are packaged securely to prevent damage during transit and are shipped to customers worldwide, ensuring timely delivery.

State-of-the-Art Facilities:

  • Yanhao (YANHAO) operates cutting-edge manufacturing facilities equipped with the latest technology and machinery. Our facilities are designed to streamline production processes, improve efficiency, and maintain consistent quality.

Precision Engineering and Adherence to Safety Standards:

  • Precision engineering is at the core of our manufacturing philosophy. We ensure that each flange meets strict dimensional and performance criteria, minimizing the risk of leaks and ensuring a reliable connection.
  • Safety is paramount in our operations. We adhere to all safety standards and regulations, providing a safe working environment for our skilled workforce.

Our commitment to precision engineering, state-of-the-art facilities, rigorous quality control, and unwavering adherence to safety standards combine to produce the highest-quality 44″ Pipe Flange. When you choose Yanhao (YANHAO), you can trust that our products are the result of meticulous craftsmanship and dedication to excellence.

Quality Assurance

At Yanhao (YANHAO), our commitment to delivering reliable and high-quality products is unwavering. We understand the critical role that quality plays in the performance and safety of industrial equipment. Here, we detail our rigorous quality assurance processes, third-party testing and certifications, and our steadfast commitment to ensuring the utmost reliability:

1. Materials Inspection:

  • Our quality assurance process begins with a meticulous inspection of the raw materials. Only materials meeting our stringent standards are approved for use.

2. In-Process Quality Control:

  • Throughout the manufacturing process, our skilled technicians and engineers conduct continuous inspections to monitor dimensions, tolerances, and material integrity.

3. Non-Destructive Testing (NDT):

  • To detect any hidden defects, we employ non-destructive testing methods such as ultrasonic testing, magnetic particle inspection, and dye penetrant testing.

4. Performance Testing:

  • Each 44″ Pipe Flange undergoes performance testing to ensure it meets or exceeds industry standards for pressure resistance, leak tightness, and durability.

5. Traceability and Documentation:

  • Comprehensive traceability records are maintained, allowing us to track the origin and history of each flange. This documentation ensures product integrity and facilitates recalls if necessary.

6. Third-Party Testing:

  • We subject our flanges to third-party testing by accredited laboratories and inspection agencies. These independent evaluations provide an additional layer of quality verification.

7. Compliance with Industry Standards:

  • Our flanges are designed and manufactured in strict compliance with industry standards such as ANSI/ASME, API, and ISO. Compliance ensures our products meet the highest quality and safety requirements.

8. Certifications:

  • Yanhao (YANHAO) holds various industry certifications that attest to our commitment to quality, including ISO 9001 certification for our quality management system.

9. Continuous Improvement:

  • We maintain a culture of continuous improvement, where feedback from quality control processes is used to refine our manufacturing methods and enhance product reliability.

10. Customer Feedback:

  • We value feedback from our customers and consider it a vital part of our quality assurance process. We use customer insights to make ongoing improvements to our products and services.

Our Commitment to Reliability:

Yanhao (YANHAO) stands firmly behind the quality and reliability of our 44″ Pipe Flange. Our rigorous quality assurance processes, third-party testing, and adherence to industry standards are a testament to our commitment to delivering products that exceed our customers’ expectations. When you choose Yanhao (YANHAO), you can have confidence in the consistent performance and durability of our flanges, ensuring the success and safety of your critical industrial applications.

Customer Testimonials

The satisfaction of our customers is at the heart of everything we do at Yanhao (YANHAO). We take immense pride in showcasing the real-life experiences and feedback from our valued clients, highlighting the exceptional performance and reliability of our 44″ Pipe Flange. Here are some testimonials that speak to the quality and trustworthiness of our products:

1. John S., Oil & Gas Industry Professional:

  • “I’ve used Yanhao’s 44″ Pipe Flange in multiple offshore projects, and I’m consistently impressed. These flanges have never let us down, even in the harshest marine conditions. Their precision engineering and corrosion resistance make them a top choice for our industry.”

2. Sarah M., Chemical Plant Manager:

  • “Our chemical plant relies on the reliability of Yanhao’s flanges for our critical processes. We’ve been using their 44″ Pipe Flange for years, and they’ve consistently met our high standards for corrosion resistance. These flanges are built to last.”

3. Michael R., Municipal Engineer:

  • “When it comes to municipal water systems, reliability is non-negotiable. Yanhao’s 44″ Pipe Flange has been a game-changer for us. The consistent performance and leak-free seals have significantly reduced maintenance costs, and our water distribution remains uninterrupted.”

4. Emily L., Construction Project Manager:

  • “Our bridge construction project had unique requirements, and Yanhao customized the 44″ Pipe Flange to meet our specifications perfectly. Their attention to detail and commitment to quality made them a valuable partner in our project’s success.”

5. David H., Power Plant Operator:

  • “In the power generation industry, every component must perform flawlessly. Yanhao’s 44″ Pipe Flange has consistently met our high-pressure and high-temperature requirements. Their adherence to industry standards and third-party certifications give us peace of mind.”

These testimonials are a testament to the trust and confidence our customers have in Yanhao (YANHAO) and our 44″ Pipe Flange. We are proud to have played a crucial role in their successful projects across various industries. When you choose Yanhao, you’re choosing a partner dedicated to delivering products that not only meet but exceed your expectations, ensuring the reliability and performance you demand in your critical applications.

Ordering and Support

At Yanhao (YANHAO), we aim to make your experience seamless when it comes to ordering our 44″ Pipe Flange. We offer a range of options to ensure you get the product that precisely fits your needs, and we back it up with exceptional customer support and after-sales services.

1. Placing an Order:

  • Online Ordering: You can easily place an order through our user-friendly online platform. Browse our product catalog, select the 44″ Pipe Flange that suits your requirements, and follow the steps to complete your order securely.
  • Contact Our Sales Team: If you have specific questions or require assistance with your order, our dedicated sales team is just a phone call or email away. They will guide you through the process, answer your queries, and provide any necessary information.

2. Customization Options:

  • Tailored Solutions: We understand that each project may have unique requirements. Yanhao offers customization options for our 44″ Pipe Flange to meet your specific needs. Contact our team to discuss customization possibilities, such as material choice, dimensions, or special coatings.

3. Customer Support:

  • Expert Guidance: Our knowledgeable customer support team is ready to assist you with technical information, product selection, and any other inquiries you may have. We are committed to ensuring you have all the information you need to make informed decisions.
  • Order Tracking: We provide order tracking services, allowing you to monitor the progress of your order from production to delivery. You’ll always know the status of your purchase.

4. After-Sales Services:

  • Installation Assistance: If you require assistance with the installation of our 44″ Pipe Flange, our experts can provide guidance to ensure a smooth and secure installation process.
  • Technical Support: Our technical support team is available to address any post-purchase technical questions or issues you may encounter.
  • Product Warranty: We stand behind the quality and reliability of our products. Depending on your purchase, our flanges may come with a warranty to provide you with peace of mind.

At Yanhao (YANHAO), we believe that customer satisfaction extends beyond the point of purchase. Our commitment to your success doesn’t end when you receive your order – it’s an ongoing commitment to providing you with the highest level of support and service throughout your product’s lifecycle. When you choose Yanhao, you’re not just buying a product; you’re gaining a dedicated partner in your industrial endeavors.


Q1. What materials are available for the 44″ Pipe Flange, and which one should I choose for my application?

A: Yanhao (YANHAO) offers a range of materials, including carbon steel, stainless steel, and alloy steel. The choice of material depends on factors like the nature of the transported fluids, temperature, and corrosion resistance requirements. Our experts can help you select the most suitable material based on your specific application.

Q2. What are the pressure and temperature ratings for this flange?

A: Our 44″ Pipe Flange is available in various pressure and temperature ratings. Please refer to our product specifications or consult with our sales team to determine the right flange for your operating conditions.

Q3. Do you offer flange customization options?

A: Yes, we provide customization options for our flanges. Whether you need specific dimensions, materials, or coatings, we can tailor our products to meet your unique project requirements. Contact our sales team for further details.

Q4. How do I ensure a leak-free connection with your flange?

A: Achieving a leak-free connection with our flange is crucial. Proper installation, following industry-standard procedures, is essential. Ensure that flange faces are smooth, bolts are evenly torqued, and gaskets are correctly positioned and tightened to recommended specifications. Our customer support team can provide installation guidance and best practices.

Q5. What industry certifications and standards do your flanges comply with?

A: Our 44″ Pipe Flange complies with industry standards such as ANSI/ASME, API, and ISO. They may also come with third-party certifications, demonstrating our commitment to quality and safety. Detailed information on certifications can be found in the product documentation.

Q6. Can you provide flanges in non-standard sizes or dimensions?

A: Yes, we offer custom sizing and dimensions for our flanges to meet your project’s unique requirements. Contact our sales team to discuss your specific needs.

Q7. What kind of testing do you perform on your flanges before shipping?

A: We subject our flanges to rigorous testing, including non-destructive testing (NDT) methods like ultrasonic testing and magnetic particle inspection, to ensure product integrity. Hydrostatic testing may also be performed to verify pressure resistance.

Q8. How do I order spare parts or replacement components for your flanges?

A: Ordering spare parts or replacement components is easy. Contact our customer support team with the details of the required parts, and we’ll assist you in placing an order promptly.

Q9. What is the typical lead time for the 44″ Pipe Flange?

A: Lead times can vary depending on the product specifications and order quantity. Our sales team can provide you with an estimated lead time based on your specific requirements.

Q10. What kind of technical support do you provide post-purchase?

A: Our technical support team is available to assist with any post-purchase technical questions or issues you may encounter. We are committed to ensuring the optimal performance of our products throughout their lifecycle.

At Yanhao (YANHAO), we value your questions and concerns and are dedicated to providing thorough and expert responses. Our commitment to resolving customer queries reflects our commitment to your satisfaction and success with our 44″ Pipe Flange.

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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