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 Steel Flanges & Fittings Manufacturer – Malaysia’s Petro Parts Sdn Bhd (PPSB) and Korea’s K Tech Global Corporation (KT). We are 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