ASME/ANSI B16.5, B16.47 Weld Neck Flange Manufacturers

Creative Piping is a premier manufacturer specializing in the production of weld neck flanges. Renowned for their exceptional quality and precision, Our weld neck flanges are engineered to meet the highest industry standards, ensuring robust performance and reliability in various applications. These flanges are meticulously crafted from top-grade materials, offering superior strength and durability. With a commitment to innovation and excellence, We combine advanced manufacturing techniques with rigorous quality control processes to deliver products that exceed customer expectations. Creative Piping's weld neck flanges provide the perfect solution for secure and efficient connections, whether for high-pressure environments or critical pipeline systems.

By combining innovative engineering, superior craftsmanship, and a customer-centric approach, We continue to set the benchmark for excellence in the piping industry. Our commitment to quality and service ensures that clients receive the best solutions for their piping needs, whether for standard or bespoke requirements.

ASME/ANSI B16.5, B16.47 Long Weld Neck Flange

Looking for Weld Neck Raised Face Flange? Our Long Weld Neck Flange Manufacturers & Suppliers offer sizes from 1/2” NB to 48” NB in materials like Carbon Steel, Stainless Steel, Alloy Steel, Duplex & Super Duplex, and Nickel Alloys. Call us to get the best prices.

ANSI/ASME B16.5 Long Weld neck Flange Specification

Dimensions 01

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN

Size range 02

15NB ( 1/2" NPS ) up to 1200 NB ( 48" NPS ), For 2500# in sizes from NPS 1/2 to NPS 12

Applications 03

oil and gas, petrochemicals, power generation, marine and food process lines, and water treatment

Materials 04

Stainless Steel, Carbon Steel, Alloy Steel, Duplex Steel & Super Duplex Steel, LTCS, Nickel Alloy


Flange Face Type 05

FF—Flat Face, RF—Raised Face, FM—Female Face, M—Male Face, T—Tongue Face, G—Groove Face, RJ—Ring Joint.

Class/Pressure 03

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64.


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01 What is the difference between WNRF Flange and LWN Flange?

The main difference lies in the length of the neck or hub. Weld neck flanges have a standard-length hub suitable for most applications, while long weld neck flanges (LWN flanges) have an extended neck. LWN flanges provide better stress distribution, easier access for welding in tight spaces, and smoother fluid flow transitions compared to standard weld neck flanges.
Weld neck flanges provide a strong, reliable connection due to the butt-welded joint with the pipe. They offer better flow dynamics, reduce turbulence, and are suitable for high-pressure and high-temperature applications.
They are used in applications where the flange needs to be mounted in a hard-to-reach or confined space, and in industries requiring stringent performance under high pressures and temperatures.
WNRF Flange Suppliers