Our high-performance industrial flanges are engineered for maximum reliability in the most demanding piping systems. Manufactured from premium carbon steel and stainless iron, these flanges adhere to stringent international standards, ensuring a leak-proof seal and structural integrity for critical infrastructure in petroleum, chemical engineering, and gas transportation.
With a comprehensive range of models including Weld Neck, Slip-on, and Blind flanges, we provide tailored solutions for diverse industrial applications. From Class 150 to Class 2500 pressure ratings, our products are designed to withstand extreme environments, backed by decades of manufacturing expertise and global certifications including ISO9001, CE, and SGS.
Detailed Parameters
| Materials | ASTM A105, Q235 | Standards | ASTM / ANSI B16.5 / BS / ASME / DIN / EN / SABS / GOST |
|---|---|---|---|
| Flange Models | Slip-on, Weld Neck, Blind, Threaded, Socket Welding, Lap-Joint | Facing Types | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Size Range | 1/2” to 60” (DN15 to DN1500) | Pressure Rating | Class 150 to Class 2500, PN2.5 to PN250 |
| Surface Treatment | Hot dipped galvanized, Yellow Painted, Natural, Black Painted | Connection Method | Welding, Threading |
| Certifications | ISO9001, CE, CIQ, ITS, SGS, BV, CCIC | Application | Petroleum, Chemical, Water, Oil, Gas, Construction |
Key Advantages
Premium Durability
Utilizing ASTM A105 carbon steel for superior strength and long-term resistance to wear and corrosion.
Rapid Delivery
Efficient supply chain ensuring shipment within 30 days after deposit receipt to minimize your project downtime.
Global Compliance
Fully compliant with ASME, DIN, and EN standards, meeting the strictest regulatory requirements worldwide.
Versatile Customization
Custom branding options available for bulk orders (10 tons+), allowing you to build your own market identity.
Precision Engineering
Strict quality control managed by 20 senior engineers and 50 technicians for zero-defect precision.
Quality Guarantee
Full refund policy within half a year if any product quality defects are found, ensuring total peace of mind.
Product Gallery
Management Platforms
Manufacturing Scale
Operating since 1997 with a workforce of 300 skilled workers and high-capacity production lines.
Technical Expertise
Led by 20 senior engineers and 50 senior technicians specializing in metallurgy and fitting design.
Export Capability
70% export ratio with a proven track record of shipping 150-200 containers per year globally.
Global Market Reach
Strong presence in USA, Russia, Mexico, Canada, Australia, and throughout Europe and Southeast Asia.
Logistics Mastery
Professional packing in wooden cases/pallets and flexible trade terms including FOB, CFR, and CIF.
Branding Services
Registered trademark "SZ" with OEM customization available for large-scale industrial specifications.
Investment Return Comparison
| Performance Metric | Standard Market Flanges | SZ Premium Flanges |
|---|---|---|
| Service Life | Moderate (3-5 Years) | Extended (10+ Years) |
| Leakage Rate | Industry Average | Ultra-Low Precision Seal |
| Installation Speed | Standard Fit | High-Precision Alignment |
| Certifications | Basic Local Standards | Multi-International (ISO/CE/SGS) |
| Warranty Support | Limited/No Guarantee | 6-Month Full Refund Guarantee |
Frequently Asked Questions
We primarily use high-grade Carbon Steel (ASTM A105, Q235) and Stainless Iron to ensure maximum strength and durability for high-pressure environments.
Our products are manufactured according to ASTM, ANSI B16.5, BS, ASME, DIN, EN, SABS, and GOST standards to meet global piping requirements.
Yes, we offer customized branding. The minimum order quantity is 10 tons per specification. Note that mold fees apply, but are returned after 5 cumulative containers are exported.
Our standard shipment time is within 30 days after we receive the deposit payment.
We are fully certified by ISO9001, CE, CIQ, ITS, SGS, BV, and CCIC, ensuring a rigorous quality management system.
We provide a comprehensive guarantee: if any product quality defect is found within half a year, we will provide a full payment refund.
