Lap Joint Flange

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Lap Joint Flange

The Lap Joint Flange redefines flexibility in piping systems, offering a dynamic solution for managing thermal expansion and contraction stresses while enabling seamless disassembly in low-pressure applications. Combining a robust flange ring with a pivoting flanged component, this innovative design allows controlled axial movement of pipelines, effectively absorbing temperature-induced shifts without compromising structural integrity. Available in two configurations—Butt Weld Ring Type (PJ/SE) for high-precision welded joints and Flat Weld Ring Type (PJ/RJ) for simplified installation—it caters to diverse operational needs while maintaining leak-proof performance. Engineered from premium carbon steel or stainless steel, the flange resists corrosion and mechanical wear, ensuring reliability in industries such as chemical processing, water treatment, and food production, where frequent maintenance or equipment upgrades are routine. Its rotating mechanism simplifies alignment during assembly, reducing labor costs and downtime in systems like hydraulic machinery, HVAC networks, or modular industrial setups. By isolating flange movement from pipeline stress, it extends the lifespan of gaskets and bolts, lowering long-term replacement expenses. From offshore platforms requiring thermal compensation to pharmaceutical plants needing sterile, easy-to-clean connections, the Lap Joint Flange ensures compliance with ASME and EN standards while adapting to evolving operational demands. Backed by rigorous testing and versatile compatibility, it empowers engineers to design resilient, future-ready infrastructure. Upgrade your piping systems today with our Lap Joint Flanges—where precision engineering meets adaptive strength, enabling your operations to thrive in dynamic environments. Choose flexibility, choose endurance, and unlock a new era of efficiency.

SPECIFICATIONS
product details
Function Combined with flange ring and flanging, allows axial displacement of the pipeline and reduces thermal expansion stress. Types: butt welding ring (PJ/SE) and flat welding ring (PJ/RJ). Suitable for low-pressure pipelines requiring frequent disassembly.
Production Process 1. Material selection (carbon steel, stainless steel, etc.)
2. Forging
3. Heat treatment
4. Finishing
5. Non-destructive testing
6. Surface treatment
Application Areas Shipbuilding, food processing pipelines, corrosive media delivery systems.
Specification Range Diameter: DN50-DN2000
Pressure: 0.6-2.5MPa
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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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