Weld Neck FLANGE

Weld neck flanges excel in high-pressure/temperature pipelines. The weld neck flange’s tapered hub reduces stress in oil/gas systems. Full-penetration welds make weld neck flanges leak-proof for PN16-PN420 ratings.

RTJ/grooved-face weld neck flanges (ASME B16.5) suit sour service (NACE MR0175). Long-neck weld neck flanges minimize turbulence in cryogenic applications. All weld neck flanges include PMI test reports.

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Welding Neck Flange

Chinese manufacturer SN Valve offers high-quality Welding Neck Flange. A butt-weld flange is a flange with a longer neck that usually matches the outer diameter of the pipe so that it can be welded to the pipe. This flange structural design improves the rigidity and strength of the flange, while improving the sealing performance of the connection. Butt-weld flanges are usually made of high-quality forged steel materials and can withstand high-pressure and high-temperature working environments.

SIZE:

DN10(3/8")	DN15(1/2")	DN20(3/4")	DN25(1")	DN40(1-1/2")
DN50(2")	DN80(3")	DN100(4")	DN125(5")	DN150(6")
DN200(8")	DN250(10")	DN300(12")	DN350(14")	DN400(16")
DN450(18")	DN500(20")	DN550(22")	DN600(24")