Weld Neck Flange

Weld Neck Flange Specification

Material
weld neck flanges

Color
Silver

Usage
industrial

Material Grade
304/316

Coating
Other

Product Type
other

Standard
ANSI

Technique
Forged

Shape
Round

Size
Different Available

Weld Neck Flange Trade Information

Minimum Order Quantity
10 Pieces

Payment Terms
Cash in Advance (CID), Cash Advance (CA)

Supply Ability
5000 Pieces Per Day

Delivery Time
3 Days

Sample Available
Yes

Sample Policy
Contact us for information regarding our sample policy

Main Export Market(s)
Asia

Main Domestic Market
All India

About Weld Neck Flange

What is Weld Neck Flange, Material Types, and Specifications

A Weld Neck Flange (WN flange) is a high-integrity pipe fitting featuring a long, tapered hub that is butt-welded to a pipe, providing a strong, leak-resistant connection ideal for high-pressure, high-temperature, and severe service applications like oil & gas, petrochemical, and power generation. Its design smoothly transitions stress from the flange to the pipe, reducing concentration, while matching the pipe's bore minimizes turbulence and erosion, ensuring flow efficiency.

Key Features:

Long Tapered Hub (Neck): Provides mechanical strength and gradual stress transfer, preventing leaks and failure.
Butt-Weld Connection: Joins directly to the pipe with a full penetration weld for maximum integrity.
Matching Bore: The internal diameter matches the connected pipe, eliminating flow restrictions, turbulence, and erosion.
Raised Face (RF) or Ring Type Joint (RTJ): Common sealing surfaces for gaskets (RF) or metallic seals (RTJ) to ensure tight seals.

Benefits:

Superior Strength: Excellent for high-pressure, high-temperature, and cyclic services.
Enhanced Flow: Smooth bore prevents turbulence and erosion, improving fluid dynamics.
Reduced Maintenance: Fewer leaks lead to lower upkeep costs.
Easy Inspection: The design allows for easy radiographic (NDT) inspection of the weld.