| Product Name | Pipe Flange (WN/SO/BLIND/SW/LJ/Threaded) |
|---|---|
| Size | DN15 β DN3000 (1/2" β 120") |
| Class | 150# / 300# / 600# / 900# / 1500# / 2500# |
| Type | WN / SO / BL / SW / LJ / Threaded / Plate |
| Face | RF (Raised Face) / FF (Flat Face) / RTJ (Ring Type Joint) |
| Standard | ASME B16.5/B16.47, EN 1092-1, JIS B2220 |
| Material | Carbon Steel / Stainless / Duplex / Alloy Steel |
| MOQ | 10 pieces |
Pipe flanges are essential connecting components that allow pipes, valves, pumps, and other equipment to be assembled into a piping system. Available in various types: Weld Neck (WN - for high pressure/temperature butt welding), Slip-On (SO - economical, slipped over pipe and fillet welded), Blind (BL - closes off pipe ends), Socket Weld (SW - for small bore high pressure), Lap Joint (LJ - for frequent disassembly), and Threaded (for low pressure non-welded connections).
Duplex stainless steel flanges (ASTM A182 F51/F53/F55) offer twice the strength of austenitic grades with superior stress corrosion cracking resistance, ideal for offshore, chemical, and desalination applications.
| Attribute | Specification |
|---|---|
| Product Name | Pipe Flange (All Types) |
| Size | DN15 β DN3000 (1/2" β 120"), custom sizes available |
| Pressure Class | 150#, 300#, 400#, 600#, 900#, 1500#, 2500# (PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250, PN320, PN400) |
| Type | WN (Weld Neck), SO (Slip-On), BL (Blind), SW (Socket Weld), LJ (Lap Joint), Threaded/NPT, Plate/Flat, Orifice, Spectacle Blind, Long Weld Neck |
| Face | RF (Raised Face, most common), FF (Flat Face, cast iron/low pressure), RTJ (Ring Type Joint, high pressure/temp), M/F (Male & Female), T/G (Tongue & Groove) |
| Standard | ASME B16.5 (β€24"), ASME B16.47 Series A/B (26"-60"), EN 1092-1, JIS B2220, BS 4504, DIN, GOST 12820 |
| Carbon Steel | ASTM A105/A105N (standard), A350 LF2 (low temp), A694 F42-F70 (high yield); 20#, Q235, 16Mn |
| Stainless Steel | ASTM A182 F304/304L, F316/316L, F321, F310, F347 |
| Duplex / Super Duplex | ASTM A182 F51 (UNS S31803/S32205 2205), F53 (UNS S32750 2507), F55 (UNS S32760), F44 (UNS S31254 254SMO) |
| Alloy Steel | ASTM A182 F5, F9, F11, F22, F91; 15CrMoG, 12Cr1MoVG |
| Inspection | PMI (100%), chemical (OES), mechanical (tensile, yield, hardness, impact at specified temp), UT/RT/PT/MT per order, dimensional (OD, PCD, bolt holes, thickness, facing finish), hydrostatic |
| Application | Oil & gas pipelines, offshore platforms, chemical & petrochemical, power plant, shipbuilding, water treatment, LNG, pharmaceutical, food processing |
| MOQ | 10 pieces |
| Supply Ability | 10,000+ Pieces/month |
| Delivery Time | 5β20 days |
| Price Term | FOB / CIF / CFR |
| Payment | T/T, L/C |
ISO 9001 / PED 2014/68/EU / API Q1 certified. PMI 100%, OES, tensile/yield/elongation/hardness/impact, UT/RT/PT/MT, dimensional, facing finish (Ra 3.2-6.3ΞΌm for RF). MTC EN 10204 3.1 with full heat traceability.
Packaging: Wooden pallets/crates, sorted by size/class/type. Raised face wrapped with protective cover. Anti-rust oil for carbon steel. Stainless individually bagged. Bolt holes aligned for stacking. Clear marking: size, class, material, heat number per MSS SP-25. Waterproof wrapping.
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Pengcheng Steel