Weld Neck Flange

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.

Category:

Description

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

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