Long Weld Neck Flanges Supplier – High Performance Industrial Flange Solutions

Name: Long Weld Neck Flanges Supplier – High Performance Industrial Flange Solutions
Brand: Riddhi Siddhi Metal Impex
Availability: InStock
Rating: 5 (15 reviews)

Specification Details
Flanges Types	Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint
Class	150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160
Size	1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000
Type	Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove

Long Weld Neck Flanges

Riddhi Siddhi Metal Impex introduces engineered piping element that is designed to perform at the demanding industrial level, particularly in high pressure and high temperature use. The company as a Long Weld Neck Flanges Manufacturer provides flanges that are equipped with a long neck, that provides strength of the weld point, proper flow guidance, and stability during critical service use.

Resists high temperatures to 600°C without deformation.
Resists stresses that are caused by pressure in heavy-duty pipelines.
Appropriate in stainless steel, carbon steel and special alloy systems.
They have smooth and serrated sealing surfaces that are available in smooth and serrated versions.
Completely tested by means of ultrasonic, hydrostatic and PMI.

These flanges are usually applied in refineries, oil and gas pipelines as well as power plants where safe and durable connections are vital. Using a reliable B2B Platform, buyers are able to customize sizes and face types, as well as associated selections, such as Socket Weld Flanges, where consistent operation is crucial to piping systems.

Long Weld Neck Flanges Supplier

As a trusted Long Weld Neck Flanges Supplier, we offer precision-engineered flanges designed for critical piping systems that require superior strength, enhanced reinforcement, and exceptional sealing performance. Long weld neck flanges feature an extended tapered hub that provides smooth stress distribution from the flange to the pipe, making them ideal for high-pressure, high-temperature, and cyclic loading conditions.

Manufactured from premium-grade materials and produced in compliance with international standards, our long weld neck flanges are widely used across industries such as oil & gas, petrochemical, power generation, offshore, chemical processing, and marine engineering.

Long Weld Neck Flanges Specifications

Parameter	Details
Product Type	Long Weld Neck Flanges
Size Range	½" NB to 48" NB
Pressure Ratings	Class 150, 300, 600, 900, 1500, 2500
Standards	ASME B16.5, ASME B16.47, EN, DIN, BS, JIS
Flange Face Types	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF)
Manufacturing Method	Forged and Machined
Inspection	PMI, UT, Radiography, Third-Party Inspection Available
Certification	EN 10204 3.1 / 3.2, MTC Available