Welding Neck Flanges, NW Long Weld Neck Flanges, Pipe flanges
The Welding neck flanges is normally referred to as the high hub flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. The welding neck flange is the best designed butt-welded flange of those currently available becuase of its inherent structural value. It is expensive because of the design.
Standards, Dimensions & Weight
ASME/ANSI B16.5 Class 150 WN
ASME/ANSI B16.5 Class 300 WN
ASME/ANSI B16.5 Class 600 WN
ASME/ANSI B16.5 Class 900 WN
ASME/ANSI B16.5 Class 1500 WN
ASME/ANSI B16.5 Class 2500 WN
ASME B16.47 Series A/MSS SP-44 Class 150 WN
ASME B16.47 Series A/MSS SP-44 Class 300 WN
ASME B16.47 Series A/MSS SP-44 Class 600 WN
ASME B16.47 Series A/MSS SP-44 Class 900 WN
ASME B16.47 Series B/API 605 Class 75 WN
ASME B16.47 Series B/API 605 Class 150 WN
ASME B16.47 Series B/API 605 Class 300 WN
ASME B16.47 Series B/API 605 Class 600 WN
ASME B16.47 Series B/API 605 Class 900 WN
BS 3293 Class 150 WN
BS 3293 Class 300 WN
BS 3293 Class 600 WN
DIN 2631 PN 6
DIN 2632 PN 10
DIN 2633 PN 16
DIN 2634 PN 25
DIN 2635 PN40
