DIN Threaded (Screwed) Flanges

Reliable Weld-Free Flange Connections for Industrial Piping

DIN Threaded (Screwed) Flanges are manufactured in accordance with DIN (Deutsches Institut für Normung) standards and are designed to provide secure, leak-resistant connections without the need for welding. Featuring precision-machined internal threads, these flanges can be directly screwed onto threaded pipes, making installation fast, convenient, and cost-effective. They are particularly suitable for piping systems where welding is restricted due to safety requirements, maintenance considerations, or operational conditions.

Premium Materials and Precision Manufacturing

Our DIN Threaded Flanges are manufactured from high-quality carbon steel, stainless steel, alloy steel, duplex stainless steel, and other engineered materials to satisfy a wide range of industrial applications. Advanced forging technology, precision CNC machining, accurate thread cutting, and controlled heat treatment ensure excellent dimensional accuracy, strong mechanical properties, and reliable thread engagement. Every flange is produced in strict compliance with DIN specifications, ensuring compatibility with standardized European piping systems.

Superior Strength and Reliable Sealing Performance

Designed for long-term industrial service, DIN Threaded (Screwed) Flanges provide outstanding resistance to pressure, corrosion, vibration, and temperature fluctuations. Their threaded construction eliminates heat-affected zones caused by welding, helping preserve the material's mechanical properties while simplifying installation and maintenance. When combined with suitable thread sealants and high-quality gaskets, these flanges provide dependable, leak-tight performance in demanding operating environments.

Comprehensive Size and Pressure Range

Our DIN Threaded Flanges are available in a wide range of DN sizes, with pressure ratings including PN6, PN10, PN16, PN25, PN40, PN63, and PN100, depending on system requirements. Various thread specifications, sealing face configurations, flange dimensions, and protective surface finishes are available to accommodate different piping installations. Customized materials, non-standard dimensions, special machining, and corrosion-resistant coatings can also be manufactured according to customer drawings and technical specifications.

Applications Across Multiple Industries

DIN Threaded Flanges are widely used in oil and gas, petrochemical processing, chemical plants, water treatment facilities, compressed air systems, fire protection networks, power generation, marine engineering, hydraulic systems, food and beverage processing, pharmaceutical manufacturing, instrumentation pipelines, and general industrial piping systems. They are especially suitable for small-diameter pipelines, hazardous locations, and installations requiring easy assembly, disassembly, or periodic maintenance.

Comprehensive Quality Assurance

Every DIN Threaded Flange undergoes strict quality control throughout the manufacturing process. Raw material verification, chemical composition analysis, mechanical property testing, dimensional inspection, thread accuracy verification, hardness testing, non-destructive testing (NDT), surface examination, and final visual inspection are performed to ensure full compliance with DIN standards and customer specifications. Additional inspections, including ultrasonic testing, magnetic particle testing, and third-party certification, are available upon request to meet specific project requirements.

OEM Manufacturing and Global Supply

We provide OEM and customized manufacturing services for EPC contractors, engineering companies, distributors, wholesalers, and industrial end users worldwide. Customized materials, thread specifications, pressure ratings, anti-corrosion coatings, laser marking, packaging, and inspection documentation can all be supplied according to project requirements. Supported by advanced manufacturing facilities, experienced technical engineers, and efficient global logistics, we deliver high-quality DIN Threaded (Screwed) Flanges with reliable performance, consistent quality, and on-time worldwide delivery.