Welding neck:
These are the most common type of flanges used for high-pressure application.It is designed to transfer stresses concentrations of the base of the flanges. These are recognized by their long tapered hub. The hub provides an important reinforcement to the flange itself and acts to reduce rotation of the flange at bolt up. The smooth transition between flange and the hub combinbed with the strength of the butt weld joint, allows the flanges to be used in extreme conditions of cyclic loading, bendng and temperature fluctuations.
* Size: 1/2” to 60”, DN 12mm to DN 1500mm
* Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
* Facing: RF / RTJ
* Material:
Cabon steel: A105, A350 LF2, C22.8,P280GH; S355JR
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: F11, F12
* Packing: plywood case and plywood pallet
Standards, Dimensions & Weight
* Size: 1/2” to 60”, DN 12mm to DN 1500mm
* Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
* Facing: RF / RTJ
* Material:
Cabon steel: A105, A350 LF2, C22.8, S355JR
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: F11, F12
* Packing: plywood case and plywood pallet
Standards
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
BS 4504 PN6-PN40 CODE 111
DIN 2627 PN400
DIN 2628 PN250
DIN 2629 PN320
DIN 2630 PN 2.5
DIN 2631 PN 6
DIN 2632 PN 10
DIN 2633 PN 16
DIN 2635 PN 40
DIN 2636 PN60
DIN 1092 PN6-PN100 TYPE 11/B1
