Titanium Weld Neck Flanges Class 150

Titanium weld neck flanges (WNRF), also known as high neck flanges, are designed with a long tapered hub that provides excellent structural strength and load-bearing capacity. The design effectively transfers pipeline stress to the flange, reducing stress concentration at the welding joint.

These flanges are especially suitable for high-pressure and high-temperature applications, ensuring reliable sealing and long service life.

Manufacturing Process

Integral forging

Free forging

Press forming

Casting

Rolling

Machining Equipment:

CNC lathes

Drilling machines

CNC machining centers

Standards & Specifications

Standards:
ANSI B16.5, ASME B16.5, ASME B16.47
JIS B2220, DIN 2627–2628
ASTM A182, ASME SA182

Material Grades:
Gr2, Gr5, Gr7, Gr12

Size Range:
NPS 1/2" – 60" (DN10 – DN2000)

Pressure Rating:
Class 150

Facing Type:
RF (Raised Face)

Key Features

High Strength Structure
Long neck design enhances rigidity and reduces deformation under load.

Reduced Stress Concentration
Smooth transition from flange to pipe minimizes welding stress.

Excellent Corrosion Resistance
Titanium ensures superior performance in aggressive environments.

Reliable Sealing Performance
Raised face (RF) design improves sealing efficiency.

Long Service Life
Suitable for harsh operating conditions with minimal maintenance.

Applications

Petrochemical industry

Oil & gas pipelines

Power generation plants

Chemical processing

Shipbuilding

Pharmaceutical industry

Metallurgy & machinery

Food processing systems

Marking & Packaging

Marking:
Each flange is marked with Grade, Size, Lot No., and manufacturer's trademark.
Custom marking is available upon request (e.g., Gr2 DN80 Class 150 WNRF).

Packaging:
Export-standard packaging with protective foam film to prevent damage during transit.

Dimensional Data (Class 150, Large Sizes)

(26" – 60" detailed dimensions available upon request or datasheet attachment)

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