Lynco Flange & Fitting
5114 Steadmont Drive, Houston, TX 77040 US
Phone:800.749.5539 � Fax: 713.690.0040
E-Mail: sales@lyncoflange.comWeb site:


Item# 1FF 301RWNAX ASME B16.47 Class 150 Series A Welding Neck Flange Extra Heavy Bore.

ASME B16.47 Welding Neck Flange
  • All dimensions are in inches.
  • Will be supplied with a 1/16" raised face unless otherwise specified.
  • Flat face option available upon request.

  Flange Type Welding Neck
  Nominal Pipe Size 26
  Outside Diameter (O) 34.25
  Minimum Thickness (C) 2.69
  Length thru Hub (Y) 4.75
  Diameter of Hub at Base (X) 26.62
  Diameter of Hub at Point of Welding (A) 26.00
  Diameter of Raised Face (R) 29.50
  Diameter of Bolt Circle 31.75
  Number of Bolt Holes 24
  Diameter of Bolt Holes 1.38
  Diameter of Bolt 1.25
  Fillet Radius Min (r1) 0.38

  • Flange Bores & Dimensions Chart (1)