As a globally recognized leader in the piping industry, Shengtian Group specializes in the precision manufacturing of a comprehensive range of flanges. We produce all standard types and pressure ratings—including Weld Neck, Slip-On, Blind, Socket Weld, Threaded, and Lap Joint flanges—in strict compliance with international standards such as ASME/ANSI, DIN, JIS, EN, and GB.
Our strength lies in our integrated manufacturing capabilities, from advanced forging and machining to rigorous quality control. Utilizing state-of-the-art technology and high-grade materials (carbon steel, stainless steel, alloy steel, duplex, etc.), we ensure every flange delivers unmatched performance, durability, and safety in critical applications across oil & gas, petrochemical, power generation, and shipbuilding sectors.
ASME/ANSI B16.5 150lbs Weld Neck Flanges Parameter


Driven by innovation and a customer-centric approach, Saintan Group is committed to providing technically superior, reliable, and cost-effective solutions. Our certified quality management system guarantees traceability and consistency for every product batch.
For your project requirements, expert technical support, or to request a detailed catalog and quotation, please contact us. We are ready to be your trusted supply partner.
Email: sale@stpipefitting.cn
GOST 12820 Steel Plate Flanges
DIN2573 PN6 Plate Flange
GOST 12836 Blind Flange Dimensions PN40 4.0Mpa