large diameter rolled plate flange, DN2000 carbon steel flat flange, municipal water project plate flange

   DN800-DN2000 Large Diameter Rolled Plate Flange is customized oversized flat welding flange specially manufactured for municipal super large caliber water diversion, sewage trunk pipeline and reservoir connecting engineering. Limited by forging machine tonnage, below DN1200 adopts one-piece hot rolling integral molding, above DN1200 adopts high-precision seamless rolling splicing process, secondary stress relief annealing treatment ensures integral structural stability same as integral flange, meeting large pipeline heavy load anti-torsion requirement.

   The whole flange disc adopts thickened reinforced design, increased flange thickness and bolt boss height, improving bolt locking bearing capacity to avoid disc warping and water leakage under large pipe hydraulic impact. Support customized PN6/PN10/PN16 three common pressure grades, matched with municipal large-size rubber sealing gasket. The flange inner hole and sealing face undergo CNC overall finishing, smooth inner wall reduces fluid flow resistance, optimized sealing groove improves gasket fitting tightness. Surface adopts outdoor epoxy anti-corrosion painting, ultraviolet radiation resistant, anti-aging, suitable for long-term outdoor buried and exposed municipal pipe network.

   We support full drawing customization: adjustable outer diameter, inner diameter, bolt hole quantity, hole position and painting color. Large diameter flange undergoes hydraulic full-pressure test, integral flatness detection and welding performance test before delivery. Professional large-size export wooden box packaging, anti-deformation binding reinforcement. Widely used for urban water diversion main pipe, reservoir interconnection pipeline, large sewage treatment plant outlet pipe, industrial park super large circulation pipe. Support third-party on-site inspection, project long-term supply cooperation, 18-month municipal engineering dedicated warranty.

Core Spec: Standard: GB/T9113; Pressure: PN6/PN10/PN16; Material: Q235B Rolled Carbon Steel; Size: DN800-DN2000; Process: Hot Rolling + Seamless Splicing + Annealing

FAQ

Q: Can you accept letters of credit with 30, 60 or 90 days usance?

A: Yes, we can.

Q: Can you issue invoices and cooperate with the chamber of commerce for certification?A: Yes, we can provide them.

Q: Can you issue Certificate of Origin Form E?A: Yes, we can provide it.

Q: Can you accept open account (O/A) payment terms?A: Yes, we can.

Q: Can you provide samples?A: Yes, some samples are free of charge.

Q: Can you supply products that comply with NACE standards?A: Yes, we can.