Weld Neck Flange

A weld neck flange consists of a circular fitting with a protruding rim around the circumference which is generally machined from a forging, these flanges are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts. Such flanges are suitable for use in hostile environments that have extremes of temperature, pressure or other sources of stress.

Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for weld neck pipe flanges, the standard height is 1/16 inch for weld neck pipe flanges fewer than 400#. For weld neck pipe flanges of 400# and up, the standard weld neck pipe flange raised face height is 1/4 inch.

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  1. EN1092-1 RF SS Weld Neck Flanges,ASTM A182,Class 150,2 Inch

    Model No.: DM-WN-Flange-099
    China EN1092-1 SS Weld Neck Flange Manufacturer: PN16, DN50 (2 Inch) Stainless Steel Weld Neck Flanges, EN1092-1 TYPE 11B, Raised Face, ASTM A182 F304.
  2. DIN 2637 Alloy Steel Butt Weld Neck Flanges,ASTM A182,Class 300,2 Inch,SCH XS

    Model No.: DM-WN-Flange-100
    China AS F9 Butt Weld Neck Flange Manufacturer: ASTM A182 F9 Weld Neck Flanges, 300LB (PN50), 2 Inch (DN50), Raised Face, DIN 2637, JIS B2312, SCH XS.
  3. JIS B2210 Forged Steel Weld Neck Flanges,ASTM A105 Q235,Class 150-2500,1/2-40 Inch

    Model No.: DM-WN-Flange-101
    China A105 Q235 Forged Steel Weld Neck Flange: JIS B2210, ASTM A105 LF2, F304, F304L, F316, F316L Weld Neck Flange 150-2500LB, 1/2-40 Inch (DN15-1000).
  4. DIN 2632 RF Weld Neck Flanges,ASTM A515,Class 150,3/8-16 Inch

    Model No.: DM-WN-Flange-102
    China DIN 2632 RF Weld Neck Flange Proveider: DN10-DN400 (3/8-16 Inch) Weld Neck Flanges, Raised Face, ASTM A515, DIN 2631, DIN 2632, DIN 86041, PN10.
  5. EN 1759 SS Welded Neck Flanges,ASTM A182,Class 150,1/2-8 Inch

    Model No.: DM-WN-Flange-103
    China SS S31254 Welded Neck Flange Manufacturer: PN10, Stainless Steel Welded Neck Flanges, ASTM A182 F316H, EN 1759, HG 20595, DN15-200 (1/2-8 Inch).
  6. DIN 2673 RF Forged Welding Neck Flanges,ASTM A352,Class 150,26-60 Inch

    Model No.: DM-WN-Flange-104
    China DIN 2673 Forged Welding Neck Flange: PN20(PN20), Raised Face Welding Neck Flanges, ASTM A352, ANSI B16.47, DIN 86030, 26-60 Inch (DN650-DN1500).
  7. DIN 86029 RF Golden Welding Neck Flanges,ASTM A352,Class 600,1/2-24 Inch

    Model No.: DM-WN-Flange-105
    China ASTM A352 Golden Welding Neck Flange: ASTM A352 Forged Weld Neck Flanges, Golden, 600LB (PN100), DIN 86029, DIN 86044, 1/2-24 Inch (DN15-DN600).
  8. ANSI B16.5 RF Weld Neck Flanges,ASTM A351,Class 300,1/2-8 Inch

    Model No.: DM-WN-Flange-106
    China ASTM A351, ASTM A285 WN Flange: ANSI B16.5 Weld Neck Flanges in ASTM A351, ASTM A285, PN50 (300LB), Raised Face, 1/2-8 Inch (DN15-DN200).
  9. ANSI B16.5 RF SS Welded Neck Flanges,ASTM A182,Class 150,24 Inch,SCH 10S

    Model No.: DM-WN-Flange-107
    China ASTM A182 SS Welded Neck Flange: ASTM A182 F304L Stainless Steel Welded Neck Flanges, Raised Face, PN20 (150LB), DN600 (24 Inch), Schedule 10S.
  10. HG 20601 RTJ Weld Neck Flanges,ASTM A126,Class 900,1/2-24 Inch

    Model No.: DM-WN-Flange-108
    China A126 Weld Neck Flange Provider: 900LB, Ring Type Jonit Weld Neck Flanges, ASTM A126, ASTM A217, HG 20601, PN150, 1/2-24 Inch, DN15-DN600.
  11. HG 20593 Forged Steel Welding Neck Flanges,ASTM A350,Class 300,26-60 Inch

    Model No.: DM-WN-Flange-109
    China A350 Forged Steel Welding Neck Flange Manufacuturer: ASTM A350, 300LB, PN50 Welding Neck Flanges, 26-60 Inch, HG 20593, ISO 7005, DN650-DN1500.
  12. EN 1092-1 Weld Neck Flanges,Stainless Steel 1.4404,Class 150,4 Inch

    Model No.: DM-WN-Flange-110
    China EN SS 1.4404 Weld Neck Flange Manufacturer: Stainless Steel 1.4404 Weld Neck Flanges, EN 1092-1, PN16, DN100 (4 Inch), Wall Thickness 8.0mm.

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