EN1092-1 Type02 F316L PN25 RF Loose Lap Joint Flange is molybdenum-containing low-carbon forged loose flange, upgraded anti-corrosion loose model of F304 lap joint flange, customized for coastal waterfront, marine drainage, chloride chemical adjustable piping. Upgraded core performance: low-carbon anti-welding deformation, Mo alloy anti-chloride pitting, thickened anti-deformation flange ring, super salt spray passivation, high rotary smoothness, PN25 upgraded pressure, perfect for seaside frequent-adjustment pipeline engineering.
Low-carbon optimized F316L material reduces welding carbon precipitation of matched stub end, avoiding weld seam embrittlement under seaside salt fog environment. Added molybdenum element greatly improves resistance to brine, seawater and chloride ion electrochemical corrosion, seaside outdoor service life 2.9 times longer than ordinary F304 loose flange. Thickened flange ring edge enhances compression toughness, upgrading pressure grade to PN25 2.5MPa, adapting medium-pressure seawater circulation and waterfront floating pipeline connection.
Precision polished inner ring bore, 360°smooth rotation without jamming, no rust locking after long-term seaside use. Whole body enhanced super pickling passivation passed 5000h neutral salt spray test, anti-salt particle abrasion and oxidation. Standard EN bolt dimension, interchangeable with EU marine pipe fittings. Mirror lapped RF face matched marine anti-corrosion composite gasket, leak-proof sealing for salt medium. DN20-DN500 EU standard size in stock, matched 316L stub end ready stock. Comply with PED pressure equipment certification. Custom anti-rust inner ring coating available. 18-month seaside heavy anti-corrosion warranty, full SGS ship inspection documents provided.
Core Product Advantages:1.Low carbon anti-weld seam brittle failure;2.Mo-bearing anti-salt chloride pitting corrosion;3.Thick ring anti-compression deformation;4.Smooth rotary inner ring anti-rust locking;5.EU standard compatible for overseas coastal projects
Core Spec: Standard: EN1092-1; Pressure: PN25(2.5MPa); Face: RF; Type: Lap Joint Loose Flange; Material: F316L Mo-bearing Stainless Steel; Process: Forged + Enhanced Salt Spray Passivation; Size: DN20-DN500; Matching Part: F316L Stub End
FAQ: Q: Why choose 316L loose flange for seaside pipe?
A: 304 loose ring easy salt fog rust locking, 316L keeps flexible rotation and anti-corrosion permanently.
