A weld neck flange is an industrial flange that has a long tapered hub. As an experienced flange maker in China, we at SHENGSENYUAN are able to provide weld neck flanges that are quality built, durable, deformation free and have good sealing effect. Our weld neck flanges are widely used for pipelines which are subject to high pressure and extreme fluctuations of temperature.
ASME B16.5 and ASME B16.47 weld neck flanges
ASME B16.47, DIN 2631, DIN 2637, DIN 2632, DIN 2638 and DIN 2633 weld neck flanges
American standard series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500
European standard series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400
Flange Facing Types
American series: Flat Face(FF), Raised Face(RF), Groove(G), Male and Female Face(MFM), Ring Joint(RJ)
Carbon steel: A105
Alloy steel: A182F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22
Stainless steel: A182 304-304H-304L-304N-304LN 316-316H-316L-316N-316LN 321-321H-347-347H
GB/T9116 1-2000 GB/T9116 2-2000 GB/T9116 3-2000 GB/T9116 4-2000
HG/T20615-2009 HG/T20623-2009 HG/T20635-2009
BS 1560-3 1-1989 BS 4504-3 1-1989
AFNOR NF E29-200-1-2007
Shengsenyuan is a professional weld neck pipe flange manufacturer in China, mainly offers industrial pipe flanges, steel tubes and steel pipe fittings since 1990, providing high quality carbon steel pipe flanges, alloy steel flanges and stainless steel pipe flanges at reasonable prices. These pipe flanges are available with ASME standard, EN standard and JIS standard, offered in various shapes, sizes and materials.