Branch Size
3"3" NPS Branch (DN 80)
4"4" NPS Branch (DN 100)
6"6" NPS Branch (DN 150)
8"8" NPS Branch (DN 200)
Product page
SKYLAND
ASME B16.47 / B16.5 Weldo Flanges (Weldoflanges)
Skyland Weldo Flanges (Weldoflanges) are monolithic forgings that combine a full-size ASME B16.5 / B16.47 flange with an integrated Weldolet branch body. Designed for larger branch connections (3" to 12" NPS) where maximum structural reinforcement of the run pipe cutout is critical.
Manufactured to ASME B16.5, ASME B16.47, and MSS SP-97 standards
Pressure Classes: Class 150, 300, 600, 900, 1500, and 2500 LBS
Branch Sizes: 3" to 12" NPS on main headers from 4" to 48" NPS
Full-penetration contoured weld prep distributes stress away from the branch junction
Ready for quotationShare your range, connection and case requirement.
Talk to ATHStandardASME B16.5, ASME B16.47, MSS SP-97
Pressure ClassClass 150# to 2500#
Branch Sizes3" to 12" NPS
Header Sizes4" to 48" NPS
MaterialsA105N, A350 LF2, A182 F316L, Duplex F51
CertificationsEN 10204 3.1, PED 2014/68/EU, ISO 9001:2015
Heavy Branching
Weldoflange Technical Specifications
Select header size, branch flange size, and class rating.
StandardASME B16.5 / MSS SP-97
DesignFlange + Weldolet
Classes150# to 2500#
Branch3" to 12" NPS
Part Number Example
SKL-WF-040-120-600RF-316L
SKLBrandSkyland Metal & Alloys
WFTypeWeldo Flange (Weldoflange)
040Branch Size4" NPS Branch
120Header Size12" NPS Main Run
600RFClassClass 600 Raised Face
316LMaterialASTM A182 F316L
Technical specifications
Design StandardASME B16.5 / MSS SP-97
Operational Notes
Specifically engineered to meet ASME B31.3 branch reinforcement calculation requirements.
Product Overview
Provides a compact, ultra-robust branch outlet with zero internal welds between the flange and branch fitting.