A weld neck flange is an industrial flange that has a long tapered hub. As an experienced flange maker in China, we at Yanshan 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.
Types
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
Size
3/8"~160"
DN10~DN4000
Pressure
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)
Material
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
Standard
GB/T9112-2000
GB/T9116 1-2000 GB/T9116 2-2000 GB/T9116 3-2000 GB/T9116 4-2000
GB/T9124-2000
SH/T3406-1996
GD2000 GD87-1101
HG/T20592-2009 HG/T20614-2009
HG/T20615-2009 HG/T20623-2009 HG/T20635-2009
ASME B16.5-2009
EN1092-1-2007 EN1759-1-2004
BS 1560-3 1-1989 BS 4504-3 1-1989
AFNOR NF E29-200-1-2007
ISO 7005-1-1992
AS2219-2000
JIS B2220-2004
Yanshan is a China weld neck flange manufacturer and supplier. We offer weld neck flange, and plate weld flange, blind flange. Our high quality products are offered at competitive prices. Yanshan is located in China, and the full chain of manufacturing pipe reducer, ERW steel pipe can be completed in China, even in one city. Lower manufacturing cost saves your purchasing cost. The more details of each product are shown on the page with description.