LONG WELDNECK FLANGES MANUFACTURER

OTG Tech Asia is Malaysia and Korea manufacturer to supply Long Weldneck Flanges.
OTG Tech Asia is export division and joint venture between Malaysia And Korea Steel Flanges & Fittings Manufacturer. Our group is ISO 9001 certify manufacturers.

Long Weld Neck Flange dimensions are covered in ASME B16.5 – which covers Pipe Flanges and Flanged Fittings for size NPS ½” to 24” for above NPS 26” to 60” it should be as per ASME B16.47.

SPECIFICATION OF LONG WELD NECK FLANGE

  • Type: LWN Forged Flange, Long welding neck flange
  • Standard: ANSI/DIN/JIS
  • Size: 1/2-78 inch (DN15-DN2000)
  • Pressure: ANSI class 150, 300, 600, 1500, 2500, DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160
  • Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
  • Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.

ASME | ASTM Material Specification

  • Carbon Steel: ASTM/ASME A105, A350 LF1, LF2, A266, A694, A765 Gr2 
  • Alloy Steel: ASTM/ASME SA182 F1, F5, F9, F11, F12, F22, F51, A350- LF3 
  • Stainless Steel: ASTM/ASME SA182 F304, 304L, F316, 316L, F310, F317L, F321, F347 
  • Duplex Stainless Steel: ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Please contact us if you have any query about our products. EMAIL to otg@otgfitting.com

Long Weldneck Flange Manufacturer - www.otgfitting.com
Long Weldneck Flange Manufacturer – www.otgfitting.com