Weld Neck Flange

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Weld Neck Flange

The Weld Neck Flange stands as the ultimate solution for high-pressure, high-temperature environments, engineered to deliver unmatched reliability through its robust butt-welded connection and precision-manufactured sealing surface. Designed for critical applications, this flange integrates seamlessly with pipelines via a full-penetration butt weld, creating a monolithic structure that withstands extreme pressures, thermal fluctuations, and mechanical stress—making it indispensable in oil refineries, petrochemical plants, and nuclear power systems. Its tapered neck design not only reinforces structural integrity but also minimizes stress concentration, ensuring long-term performance in demanding conditions. The production process—spanning advanced forging, stress-relieving heat treatment, precision finishing, rigorous non-destructive testing (NDT), and anti-corrosion surface treatments—guarantees a component that exceeds industry standards for safety and durability. From subsea pipelines enduring corrosive seawater to steam turbines operating at scorching temperatures, the Weld Neck Flange ensures leak-proof sealing and operational continuity. Industries requiring uncompromising quality, such as aerospace fluid systems or cryogenic storage, rely on its ability to maintain integrity under cyclic loading and harsh media exposure. By combining superior material resilience with precision engineering, this flange reduces lifecycle costs through minimized downtime and maintenance. For engineers tasked with safeguarding high-stakes infrastructure, the Weld Neck Flange is the definitive choice. Elevate your system’s performance today with our premium Weld Neck Flanges—where cutting-edge manufacturing meets industrial-grade resilience, empowering your operations to conquer the extremes of pressure, temperature, and time. Choose excellence, choose endurance, and build a future-proof foundation for your critical systems.

SPECIFICATIONS
product details
Function Introduction Butt-weld connection provides high-strength sealing for high-pressure (HP) and high-temperature (HT) applications, ensuring leak-proof performance under extreme conditions
Production Process 1. Precision forging
2. Normalizing/Quenching & Tempering
3. CNC machining
4. 100% NDT (RT/UT)
5. Surface finishing (SP/PE)
Application Fields • Oil & gas transmission pipelines
• Offshore platform systems
• Chemical processing equipment
• Water treatment plants
• Food/pharmaceutical sterile piping
Specification Range Diameter: DN15-DN3500 (½"-140")
Pressure: 0.25-25MPa (ASME Class 150-2500)
Standards: ANSI/ASME B16.5, B16.47
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JIANGYIN GAOXIN PIPE FITTINGS CO.,LTD.
Jiangyin Gaoxin Pipe Fittings Co., Ltd. is located in Jiangyin City, an emerging port city in the Yangtze River Delta, where there is a paradise and Suzhou and Hangzhou. Jiangyin is an ancient civilized city with a long history of culture. In recent years, the title of Healthcity has been maintained. The geographical environment is superior, with Suzhou, Shanghai in the eastWuxi in the south, Changzhou and Nanjing in the west, the Yangtze River in the back, beautiful scenery and convenient transportation. The company has a full set of senior engineers and technicians wno have been engaged in the manufacture of pipe fittings for a long time.
Specializing in the manufacture and marketing of a full range of specifications for all sizes of tees, crosses, elbows, eccentric reducers, flanged shorts, flanges, caps, direct heads and various materials.Socket welded pipe fittings. And a variety of special pipe fittings made according to the user's special technical requirements, including more than 100 products such as pipe extension products.
For more than ten years, the company has been a supporter of the international and domestic petroleum refining, chemical, electric power, light industry metallurgy, pharmaceutical, food machinery and other industries, such as a spider's pipeline project, careful service, factory prefabrication for pipeline installation engineering. The work has made a huge contribution The company's products are sold throughout the country and Europe and the United States and other places. After more than ten years of production and marketing practice, our company's processing equipment, production technology testing methods, and service quality have been basically improved from now on. Has been praised by the majority of users at home and abroad.
"Everyone is responsible, the road is checked, the pieces are qualified, the customer is satisfied" is the quality aim that our company has always followed. By following this principle, our company passed the IS09001 quality system certification in January 1999and established a set of effective quality assurance system according to this standard, forming a set of strict product testing methods, strictly managing raw materials, All the procedures of re-inspection to factory inspection ensure the use of the products in many key projects at home and abroad, and have won unanimous praise from customers. The company relies on theIS09001 quality system for effective operation on June 26, 2006. Successfully passed the certification of the State Administration of Quality Supervision, Inspection and Quarantine to the company's pressure-bearing special equipment manufacturing license. In turn, it has formed another major feature of the company, which has made the company even more powerful and has taken a step in the cross-century in the manufacturing process and quality control of high-quality pipe fittings We warmly welcome friends from home and abroad to visit our company for extensive and sincere cooperation.
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