2507 Super Duplex Plate Flange, PN25 Chloride Resistant Flat Flange, Seawater Desalination Flange

   2507 Super Duplex PN25 Plate Flange is top-grade super duplex stainless steel flat welding flange, upgraded alternative of 2205 duplex flange, with higher molybdenum and nitrogen alloy ratio, ultra-strong resistance to high-concentration chloride, brine, strong acid and alkali corrosive medium. Specially manufactured for seawater desalination, salt chemical, coastal high-chloride industrial harsh piping environment, compliant with international desalination equipment piping standards.

   Integral thickened forging structure reaches PN25 pressure grade, steady 2.5MPa working pressure, combining high mechanical strength and anti-stress corrosion performance. Compared with 316L and 2205 flange, 2507 super duplex material has 5 times pitting corrosion resistance, suitable for long-term immersion high-salinity seawater, saturated brine, industrial strong corrosive wastewater medium. Precision mirror-ground RF sealing face, matched with anti-corrosion PTFE gasket, zero leakage under corrosive medium long-term circulation operation. Low magnetic property meets explosion-proof chemical equipment pipeline use standard.

   Every flange undergoes strict duplex phase ratio detection, solution heat stabilization treatment and high-salinity immersion corrosion test before delivery. Size DN32-DN400 desalination special size customized stock. Adopt anti-corrosion full penetration welding process, weld seam will not corrode priority to pipeline body. Widely used for seawater desalination reverse osmosis pipe, salt mine brine conveying pipe, coastal electroplating waste water pipe, explosion-proof chemical corrosive piping. Provide anti-corrosion wooden export package, 25-year harsh anti-corrosion warranty, third-party chloride corrosion inspection report supplied.

Core Spec: Standard: HG20592/EN1092-1; Pressure: PN25; Face: RF; Material: 2507 Super Duplex Stainless Steel; Process: Forged + Phase Stabilization Treatment; Size: DN32-DN400

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.