Quality Stainless Steel Seamless Pipes & Stainless Steel Butt Welded Pipe Fittings Factory

Stainless steel blind flanges, also known as blank flanges, are a critical type of flange component designed with a solid, non-perforated disc structure. Unlike other flanges used for pipeline connection, their core purpose is to seal and close the end of pipeline systems, isolate internal media, and facilitate inspection, maintenance, and equipment replacement. With excellent corrosion resistance, pressure-bearing capacity, and sealing performance derived from high-quality stainless steel, they are widely applied in various industrial fields that require strict pipeline isolation and safety protection. The primary use of stainless steel blind flanges is to seal the end of pipelines, which is indispensable in scenarios where pipelines need to be temporarily or permanently closed. In the petroleum and petrochemical industry, they are extensively used at the ends of oil and gas transmission pipelines, reaction tanks, and storage tanks. By sealing the pipeline ends, they prevent the leakage of flammable, explosive, or corrosive media, ensuring the safety of production operations and protecting the surrounding environment from pollution. In the chemical industry, stainless steel blind flanges play a vital role in chemical reaction systems and medium storage equipment. They are installed at the outlets of reactors, distillation towers, and storage tanks to isolate the internal chemical media when the equipment is shut down for maintenance, overhaul, or replacement. This isolation prevents the mixing of different media and avoids potential chemical reactions or safety hazards, ensuring the safety of maintenance personnel and the integrity of equipment. For the water treatment and environmental protection industry, stainless steel blind flanges are used in sewage treatment systems, water purification equipment, and desalination pipelines. They seal the unused or standby pipeline ends, preventing the backflow of sewage, impurities, or corrosive agents, and ensuring the stability and efficiency of the water treatment process. Their corrosion resistance to various chemical reagents and sewage ensures long-term, leakage-free operation, reducing maintenance costs for water treatment projects. In the pharmaceutical and food processing industries, stainless steel blind flanges that meet food-grade and pharmaceutical-grade standards are used in clean pipeline systems. They seal the ends of pipelines transporting drugs, food raw materials, or finished products, avoiding the entry of air, dust, or bacteria, and maintaining the cleanliness and purity of the media. This strict sealing performance complies with the high hygiene requirements of these industries, ensuring the quality and safety of products. Additionally, stainless steel blind flanges are widely applied in power plants, marine engineering, and general industrial pipelines. In power plants, they are used at the ends of steam and water pipelines to facilitate the inspection and maintenance of boilers and heat exchangers; in marine engineering, they resist seawater corrosion and seal the ends of marine pipelines, ensuring the safe operation of ship systems; in general industry, they are used for standby pipelines, temporary pipeline closures, and equipment maintenance, providing flexible and reliable sealing solutions. Stainless steel blind flanges are not only functional in sealing and isolation but also offer the advantages of easy installation and disassembly. Their core value lies in providing safe, reliable, and hygienic isolation solutions for pipeline systems, covering almost all key industrial fields. They are an indispensable component for ensuring the safety, stability, and efficiency of industrial production and pipeline operations.

Stainless steel plate flanges, also known as flat plate flanges, are a kind of simple-structured, cost-effective and widely used flange product, which are essential connecting components in industrial pipeline systems. Different from other flange types, plate flanges feature a flat disc structure with bolt holes evenly distributed around, mainly used for connecting pipes, valves, pumps and other equipment in low-pressure and non-high-temperature working conditions, playing a key role in ensuring the tight connection and smooth operation of pipeline systems. The core use of stainless steel plate flanges is to provide a simple and reliable connection solution for low-pressure pipeline systems, which is widely used in various industries due to its convenient installation and low cost. In the municipal engineering and water supply and drainage industry, plate flanges are extensively applied in urban tap water pipelines, residential district water supply networks, and municipal sewage discharge pipelines. Their excellent corrosion resistance to tap water, sewage and other media ensures long-term leakage-free operation, reducing the maintenance cost of municipal pipeline facilities. In the general industrial and light industry fields, stainless steel plate flanges are widely used in pipelines for transporting ordinary media, such as compressed air, industrial water, common solvents and inert gases. Their simple structure simplifies the installation process, shortens the construction cycle, and is suitable for large-scale pipeline laying projects that do not require high pressure-bearing capacity. Meanwhile, the stainless steel material ensures good wear resistance and durability, adapting to the basic operation needs of general industrial production. For the auxiliary pipeline systems of factories and enterprises, such as ventilation pipelines, cooling water circulation pipelines and auxiliary material transportation pipelines, stainless steel plate flanges are the preferred connecting components. They can effectively connect pipelines of different specifications, ensure the smooth circulation of media, and facilitate later disassembly and maintenance, which is conducive to the regular inspection and maintenance of pipeline systems and improves the operation efficiency of enterprises. In addition, stainless steel plate flanges are also used in the environmental protection, agricultural irrigation and small-scale chemical fields. In environmental protection projects, they are used to connect sewage treatment auxiliary pipelines, resisting the corrosion of weak chemical agents in sewage; in agricultural irrigation, they are applied in irrigation pipeline networks, adapting to outdoor natural environments and ensuring the stability of water transmission; in small-scale chemical production, they are used for pipelines transporting non-corrosive or weakly corrosive auxiliary materials, meeting the basic connection needs of production. Stainless steel plate flanges focus on practicality and cost-effectiveness, and their core value lies in providing economical and reliable connection solutions for low-pressure pipeline systems. Their wide range of applications covers municipal, industrial, agricultural and other multiple fields, fully meeting the diverse low-pressure pipeline connection needs of various industries and becoming an indispensable basic component in pipeline construction.

Stainless steel flanges are indispensable connecting components in industrial pipeline systems, playing a crucial role in joining pipes, valves, pumps, and other equipment to ensure tight sealing, stable operation, and convenient maintenance of the entire pipeline. With excellent corrosion resistance, high-temperature resistance, and mechanical strength, they are widely applied in various key industries that have strict requirements for pipeline performance. In the petroleum and petrochemical industry, our stainless steel flanges are used to connect pipelines for oil and gas exploration, transportation, and refining, withstanding harsh working conditions such as high pressure, high temperature, and corrosive media to ensure the safety and efficiency of energy transmission. In the water treatment and environmental protection industry, they are applied in water purification, sewage treatment, and desalination systems, effectively resisting the corrosion of chemical agents and impurities in water, and ensuring the stability of water treatment processes. For the food processing and pharmaceutical industries, our stainless steel flanges meet food-grade and pharmaceutical-grade standards, with a smooth surface that avoids medium accumulation and bacterial growth, making them suitable for pipelines transporting edible oils, beverages, drugs, and other clean media. In the marine and shipbuilding industry, they resist seawater corrosion and harsh marine environments, serving as core components for marine pipeline systems. Additionally, they are widely used in power plants, chemical equipment, and industrial manufacturing, providing reliable connection solutions for various complex working scenarios. As a professional stainless steel flange manufacturer serving global clients, we have obvious advantages that make us stand out in the international market. Firstly, we adhere to strict international standards such as ANSI, DIN, EN, JIS, and GB in production, ensuring that every flange meets the quality requirements of global customers and has good compatibility with international pipeline systems. Secondly, we select high-quality stainless steel raw materials and adopt precision machining technology, combined with strict quality inspection and testing procedures, to ensure the dimensional accuracy, welding performance, and sealing performance of our products, making them durable and reliable. Moreover, we provide customized solutions according to the specific needs of customers, including special specifications, materials, surface treatments, and flange types, to perfectly match the unique requirements of different projects. Our professional technical team has rich experience in flange design and application, providing full-process technical support from product selection to installation guidance. Meanwhile, our efficient after-sales service team responds quickly to customer needs, solving various problems encountered in product use and ensuring a worry-free purchasing experience for global clients.

As a professional manufacturer of stainless steel pipe fittings, we are committed to providing global customers with high-quality, reliable and diversified flange solutions. Stainless steel flanges are core components in pipeline systems, widely used in petroleum, chemical, water treatment, food processing, pharmaceutical, marine and other industries due to their excellent corrosion resistance, high temperature resistance and mechanical strength. Today, we will introduce the main types of stainless steel flanges we supply, helping you choose the most suitable product for your project needs. 1. Slip-On Flange (SO Flange) The slip-on flange is one of the most commonly used flange types in industrial applications, favored for its simple structure, easy installation and cost-effectiveness. It features a slightly larger inner diameter than the pipe outer diameter, allowing the pipe to slip through the flange hole, and then be fixed by fillet welding on both the inner and outer sides of the flange. This type of flange is suitable for low to medium pressure pipeline systems (usually PN1.0-PN4.0, Class 150-Class 300) and is compatible with various stainless steel grades such as 304, 316, 316L. Its advantages include convenient alignment during installation, low welding difficulty, and easy maintenance. It is widely used in water supply and drainage, air conditioning and ventilation, and general chemical pipelines. 2. Weld Neck Flange (WN Flange) The weld neck flange is a high-performance flange designed for high-pressure, high-temperature and harsh working conditions. It is characterized by a long neck that is seamlessly connected to the pipe through butt welding, which effectively distributes the stress at the welding joint and improves the overall pressure-bearing capacity of the pipeline system. Compared with other flange types, the weld neck flange has better structural integrity, higher strength and better sealing performance. It is widely used in high-pressure pipeline systems (PN6.3-PN16.0, Class 600-Class 2500), such as oil and gas transmission, petrochemical reaction equipment, and power plant pipelines. Our weld neck flanges are precision machined to ensure the consistency of the neck thickness and pipe wall, ensuring safe and stable operation even under extreme conditions. 3. Socket Weld Flange (SW Flange) The socket weld flange is specially designed for small-diameter pipelines (usually DN10-DN50) and low to medium pressure applications. It has a socket-shaped inner hole, where the pipe is inserted into the socket, and then fixed by fillet welding at the flange end. This design avoids welding seams inside the pipeline, reducing the risk of medium accumulation and corrosion, and ensuring the smooth flow of the medium. The socket weld flange is easy to install and has good sealing performance, making it suitable for pipelines transporting clean media such as water, steam, and high-purity chemicals. It is widely used in pharmaceutical, food processing, and electronic industry pipeline systems, where cleanliness and corrosion resistance are strictly required. 4. Threaded Flange (TH Flange) The threaded flange is a non-welded flange type, which is connected to the pipe through internal threads (or external threads) matching the pipe threads. It does not require welding during installation, which is especially suitable for occasions where welding is not allowed, such as flammable, explosive or high-precision pipeline systems. This type of flange is easy to disassemble and maintain, and can be reused, which saves maintenance costs for customers. However, it should be noted that the threaded flange is only suitable for low-pressure pipeline systems (usually PN≤1.6, Class 150), as the sealing performance may be affected under high pressure. It is commonly used in gas pipelines, small-diameter water pipelines and temporary pipeline systems. 5. Blind Flange (BL Flange) The blind flange is a flange with no through hole, mainly used to seal the end of the pipeline, isolate the medium in the pipeline, and facilitate the inspection, maintenance and replacement of pipeline equipment. It is also known as a blank flange, and its structure is simple, usually consisting of a flange plate and bolt holes. Our blind flanges are available in various specifications to match different flange standards and pipe diameters. They are made of high-quality stainless steel, ensuring good corrosion resistance and pressure-bearing capacity. Blind flanges are widely used in all types of pipeline systems, especially in occasions where the pipeline needs to be temporarily closed or periodically inspected, such as chemical reaction tanks, storage tanks and pump outlets. 6. Lap Joint Flange (LJ Flange) The lap joint flange, also known as the loose flange, consists of a flange ring and a lap joint stub end. The flange ring can slide freely on the lap joint stub end, which is convenient for alignment during installation and disassembly. This type of flange is suitable for low-pressure, low-temperature pipeline systems and occasions where frequent disassembly is required. The lap joint flange has the advantages of simple structure, low cost and easy installation, and is compatible with various pipe materials. It is widely used in water treatment, environmental protection, and general industrial pipeline systems. The lap joint stub end is usually butt-welded with the pipe, while the flange ring is connected with bolts, which reduces the welding difficulty and improves the installation efficiency. Our Advantages in Stainless Steel Flanges All our stainless steel flanges are manufactured in strict accordance with international standards such as ANSI, DIN, EN, JIS and GB, ensuring that the products meet the quality requirements of global customers. We use high-quality stainless steel raw materials, and through precision machining, strict quality inspection and testing, we guarantee the dimensional accuracy, welding performance and sealing performance of each flange. In addition, we can provide customized flange solutions according to the specific needs of customers, including special specifications, materials and surface treatments. Our professional technical team and after-sales service team are committed to providing customers with full-process support, from product selection to installation guidance, to solve your worries. Whether you need slip-on flanges for general industrial pipelines, weld neck flanges for high-pressure systems, or customized flange products, we have the ability to meet your needs. Welcome to contact us for more information about stainless steel flanges and our products and services.

When it comes to stainless steel screwed pipe fittings, quality and availability are non-negotiable. Our company stands out as a leading supplier, thanks to our unwavering commitment to excellence and customer satisfaction. These fittings are designed for easy installation and maintenance, making them ideal for both new projects and retrofitting existing systems. With applications ranging from plumbing and HVAC to specialized industrial processes, our fittings offer versatility and reliability. What sets our stainless steel screwed pipe fittings apart is our focus on inventory excellence. We understand that downtime can be costly, which is why we maintain a large and diverse inventory ready for immediate dispatch. Our fittings are sourced from reputable mills and produced using state-of-the-art machining techniques, ensuring tight tolerances and leak-proof connections. The threaded ends are precision-cut to prevent cross-threading and galling, while the polished surfaces resist contamination and buildup. Furthermore, our fittings are tested for pressure ratings, temperature tolerance, and corrosion resistance, adhering to globally recognized standards. We also offer customized solutions to meet unique project requirements. Whether you need specific sizes, special coatings, or bulk quantities, our team is equipped to provide tailored support. Our competitive pricing, coupled with reliable supply chains, makes us the preferred choice for engineers, contractors, and procurement managers worldwide. Invest in stainless steel screwed pipe fittings that guarantee performance and longevity. Contact us today to discuss your requirements or request a sample.

The journey of partnership between Yuhao Stainless Steel Company and a prominent Turkish firm is a testament to resilience, quality, and mutual trust. Initially, the relationship was established through an international trade exhibition where representatives from both companies engaged in discussions about potential collaborations. The path wasn't without challenges. Language barriers, cultural differences, and varying business practices initially posed significant hurdles. However, Yuhao Stainless Steel demonstrated unwavering commitment by providing detailed product specifications, organizing virtual factory tours, and ensuring transparent communication at every stage. Despite these obstacles, what truly solidified this partnership was Yuhao's unwavering dedication to quality and efficiency. The first order placed by the Turkish company exceeded their expectations not only in terms of the superior quality of stainless steel products but also due to remarkably swift delivery times. This reliability led to multiple repeat purchases over time, strengthening their bond further. This successful collaboration exemplifies how overcoming initial difficulties can lead to long-lasting, profitable relationships built on trust, high standards, and timely service. It highlights Yuhao Stainless Steel's capability as a global supplier capable of meeting diverse international demands while maintaining excellence across all operations. This story serves as an inspiring example within the business community showcasing that perseverance coupled with top-notch offerings results in fruitful partnerships transcending geographical boundaries.We are Yuhao Stainless Steel Company, our stainless steel seamless pipe, flange, pipe fittings, valves are worthy of customer trust.      

At the recent Shanghai Trade Exhibition, Yuhao Stainless Steel Company showcased its commitment to excellence and innovation in stainless steel products. This prestigious event served as a vital platform for international trade, bringing together suppliers, distributors, and buyers from across the globe. Yuhao's participation was marked by significant success as numerous potential partners expressed keen interest in their high-quality samples. Yuhao's exhibition booth attracted a steady stream of visitors eager to explore their extensive range of stainless steel offerings. Engaging in constructive dialogues with these prospects proved invaluable for fostering new business relationships. Many suppliers were particularly impressed by the superior quality demonstrated through detailed product presentations and hands-on sample inspections. Notably, the interaction extended beyond mere discussions; several clients placed orders on-site after witnessing firsthand the exceptional craftsmanship and reliability that Yuhao represents. These immediate transactions underscored not only the appeal but also the trustworthiness inherent in Yuhao’s brand promise. This experience highlighted how face-to-face communication at such exhibitions can significantly enhance mutual understanding among international traders leading towards more fruitful collaborations. It reaffirms Yuhao Stainless Steel Company's position as a leading player within the global marketplace while reinforcing commitments towards delivering top-tier solutions tailored specifically for diverse customer needs worldwide. We are Yuhao Stainless Steel Company, our stainless steel seamless pipe, flange, pipe fittings, valves are worthy of customer trust.Through continued efforts like these exhibited events, Yuhao remains steadfast in promoting international commerce alongside building lasting partnerships built upon shared successes achieved together through open dialogue and transparent dealings practices.