Socket Weld Flanges (SW)
group nameFlange
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Min Order1 piece
brand nameLOLO pipe fittings Manufacturer
modelHigh-pressure Socket Welding Flange with RF facing, suitable for small-bore piping in petrochemical and power industries.
payment methodT/T, L/C, D/P D/A
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update timeWed, 24 Jun 2026 10:52:55 GMT
Paramtents
Petrochemical Oil & Gas
Power Nuclear
Packging & Delivery
Min Order1 piece
Briefing
Socket Welding Flanges (SW) are designed for high-pressure, small-bore piping. The pipe inserts into the socket for a fillet weld, ensuring superior strength and leak resistance compared to slip-on flanges. Ideal for hazardous systems up to Class 1500 (PN100), they are widely used in petrochemical, power, and hydraulic applications. Available in sizes NPS 1/2" to 6" (DN15-DN150).
Detailed
| Standard： | ASME B16.5, EN 1092-1, BS 4504, JIS B2220 |
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| Material： | Carbon Steel：ASTM A105, ASTM A350 LF1/LF2/LF3, ASTM A694 F42/F46/F52/F56/F60/F65/F70, P235GH,P245GH,P250GH,P265GH,P280GH,16M03,S235JR,C22.8,P295GH,P355GH,P275NH,P285NH,P355NH Stainless Steel：ASTM A182 F304/F304L, F316/F316L, F321, F347, F310, F904L,F44 Alloy Steel：ASTM A182 F5a, F9, F11, F12, F22, F91 Duplex & Super Duplex：ASTM A182 F51, F53, F55 Nickel Alloys：Hastelloy C276, Inconel 600/625/718/X750/800/825, Monel 400/K50 Titanium Flange Aluminum Flange Copper Flange |
| Facing ： | ASME：RF, FF |
| Pressure Class: | ASME：Class 150, 300, 600, 900, 1500 DIN / ENPN10, PN16, PN25, PN40, PN63, PN100 |
| Size Range: | NPS 1/2"–6" (DN15–DN150) |
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6YRS Qingdao LOLO Pipeline Co., Ltd.
- Nearest port for product export
- Qingdao, Tianjin, Shanghai, Shenzhen
- Delivery clauses under the trade mode
- FOB, CFR, CIF, EXW
- Acceptable payment methods
- T/T, L/C, D/P D/A