Looking for reliable threaded flanges? As leading China suppliers and a professional factory, we provide precision-engineered internal thread flanges that eliminate welding needs, ideal for high-pressure and hazardous environments across various industrial sectors.
Our Threaded Flanges are precision-engineered pipe components featuring internal threads that allow for a secure, screw-on connection to pipes with matching external threads. By eliminating the need for welding, these flanges provide an efficient and reliable solution for piping systems where high-temperature joining is impractical or prohibited, ensuring a leak-proof seal without compromising the structural integrity of the pipe.
Designed for versatility across demanding industrial environments, these flanges are available in a wide range of premium materials including carbon steel and stainless steel. They are particularly advantageous for small-diameter piping and high-pressure systems in sectors such as chemical processing and oil and gas, offering unmatched ease of installation and simplified maintenance for systems requiring frequent disassembly.
Detailed Parameters
| Pressure Rating | PN6 - PN40 / Class 150 - Class 2500 | Size Range (DN/Inch) | DN10 - DN2000 / 1/2" - 24" / S.A 12" - 60" |
|---|---|---|---|
| Carbon Steel (CS) | ASTM A105, P235GH, P245GH, P250GH, P265GH, ST37-2 | Stainless Steel (SS) | ASTM A182, 304, 306 |
| Standard Compliance | ASME, EN, JIS, DIN, BS, KS, GOST, SABS, ATK | Surface Coating | Black paint, Galvanize, Grease, Epoxy paint |
| Connection Type | Internal Threaded (Non-welded) | Primary Application | Fire-protection, Industrial Piping |
| Environment | Non-corrosive and Hazardous areas | Key Feature | Easy access point / Rapid disassembly |
Key Advantages
No Welding Required
Internal threads allow for screw-on installation, eliminating fire hazards and the need for specialized welding equipment.
Rapid Installation
Significantly reduces assembly time, especially in restricted areas or hazardous environments where welding is prohibited.
High-Pressure Sealing
Engineered to provide secure, leak-proof connections in high-pressure systems across pharmaceutical and oil industries.
Easy Maintenance
Ideal for systems requiring frequent disassembly, reconfiguration, or instrumentation piping access.
Material Versatility
Available in CS, SS, and alloy steels to ensure maximum durability and resistance based on fluid properties.
Cost-Effective Solution
Lowers operational costs by reducing the need for skilled welders and simplifying the installation process.
Product Gallery
Management Platforms
Inventory Tracking
Real-time monitoring of flange stocks across various material grades and sizes.
Quality Control
Strict adherence to ASME and DIN standards through digital inspection logs.
Logistics Alerts
Automated shipping notifications for time-sensitive industrial projects.
Order Management
Seamless processing of custom specifications for pressure vessel components.
Supply Chain Sync
Integrated coordination with raw material suppliers for carbon and stainless steel.
Technical Support
On-demand digital access to installation guides and technical data sheets.
Investment Return Comparison
| Comparison Metric | Threaded Flanges | Welded Flanges |
|---|---|---|
| Installation Speed | Ultra-Fast (Screw-on) | Slow (Welding process) |
| Labor Cost | Low (Basic tools) | High (Certified welder) |
| Maintenance Ease | High (Easy removal) | Low (Must be cut) |
| Initial Setup Cost | Lower | Higher |
| Hazardous Area Suitability | Excellent (No spark) | Limited (Hot work permit) |
Frequently Asked Questions
Threaded flanges use internal threads to screw onto pipes, eliminating the need for welding. This makes them ideal for environments where welding is dangerous or where the piping system needs to be frequently disassembled.
They are widely used in oil and gas, chemical processing, water treatment, pharmaceuticals, and fire-protection systems due to their reliability and safety.
Yes, they are often used in high-pressure systems; however, for extremely high mechanical strength requirements, welded connections are generally preferred. Always check the PN/Class rating (e.g., Class 2500) for your specific needs.
For corrosive environments, stainless steel (such as ASTM A182, 304, or 306) is highly recommended over carbon steel to prevent oxidation and material degradation.
Our products comply with a wide range of global standards, including ASME, EN, JIS, DIN, BS, KS, GOST, SABS, and ATK, ensuring global compatibility.
Depending on the application, we offer several coatings: black paint, galvanization, grease for rust prevention, and epoxy paint for enhanced chemical resistance.
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