ASME B16.47A Class 900 WN (Weld Neck) Flange Supplier. Contact us to get free quote and sample!
ASME B16.47A Class 900 WN (Weld Neck) Flange is a high-pressure, large-diameter pipe connection component manufactured to the ASME B16.47 Series A standard. It is designed for severe-duty industrial systems requiring exceptional strength and leak resistance. HT PIPE supply all different types and scales of flanges. Please feel free to contact us for further product information and pricing.
ASME B16.47A Class 900 WN (Weld Neck) Flange Structure Advantages
Integral Neck: Welds directly to pipe, distributes stress evenly – ideal for high pressure/vibration.
RTG Seal Face: Metal-to-metal contact with ring gasket, superior leak resistance vs. flat faces.
High Strength: Thicker flange, robust bolting – meets Class 900 pressure demands.
ASME B16.47A Class 900 WN (Weld Neck) Flange Typical Applications
Oil & Gas: Long-distance pipelines, offshore platforms, refineries.
Petrochemicals: Ethylene/propylene plants, acid/caustic service.
Power: Boiler main steam lines, nuclear cooling systems.
Water/Wastewater: High-pressure transmission mains, treatment plants.
Marine: Offshore FPSO vessels, shipboard piping.
Why Choose ASME B16.47A Class 900 WN Flange?
Reliability: Proven design for critical, high-stakes installations.
Compatibility: Fits standard large-diameter pipe systems (NPS 26–60).
Global Compliance: Meets international industry standards (API, MSS).
Longevity: Durable construction reduces maintenance and downtime.
Customizable: Available in various materials to match your media and temperature needs.
ASME B16.47A Class 900 WN (Weld Neck) Flange dimension
NOTES:
Dimensions are in millimeters unless otherwise noted.
(1) The minimum flange thickness does not include the raised face thickness.
(2) This dimension is for the large end of hub, which may be straight or tapered.
(3) For welding and bevel.
(4) The length of the stud bolt does not include the height of the points.
(5) Bolt lengths not shown in the table may be determined in accordance with Nonmandatory Appendix D.
