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Flanges

Flanges
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Twinco Industrial supplies a full range of flanges for industrial and pipeline applications, including weld neck, slip-on, lap joint, blind, and API flanges.

We offer both domestic and import options, available in a wide range of sizes, pressure classes, and materials – ready to support everything from routine maintenance to critical projects.

Category Products Included
Flange Types Weld Neck (WN), Slip-On (SO), Blind (BL), Lap Joint (LJ), Socket Weld (SW), Threaded (THD), API Flanges
Size Range ½″ through 72″
Pressure Classes (ASME) 150, 300, 400, 600, 900, 1500, 2500
Flange Series ASME B16.5, ASME B16.47 Series A (MSS SP-44), ASME B16.47 Series B (API 605)
API Ratings 2,000 PSI, 3,000 PSI, 5,000 PSI, 10,000 PSI, 15,000 PSI
Materials Carbon Steel (A105N, A350 LF2), Stainless Steel (304/304L, 316/316L), Alloy Steel (F11, F22, F91), Duplex / Super Duplex, Nickel Alloys (Inconel, Monel, Hastelloy)
Manufacturing Origin Domestic (USA) and Import
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