Rishabh Industries is a trusted Supplier of High-Quality Welding Neck Flanges across India.
Our Manufacturing unit is based in Ahmedabad, Gujarat, India.
Rishabh Industries is a Manufacturer of various types of Flanges, Slip On Flange,
Blind Flange, Lapped Joint Flange, Screwed Flange, Socket Weld Flanges, Welding Neck Flange, Orifice Flanges, Spectacle Blind Flanges, Threaded Flange.
Rishabh Industries specialize in manufacturing and supplying high-quality Welding Neck Flanges (WN Flanges) that meet global standards like ANSI, ASME, and DIN.
Precision-engineered for demanding industrial applications, our Welding Neck Flanges ensure secure, leak-proof connections in high-pressure and high-temperature environments.
Whether you’re in oil & gas, petrochemicals, power generation, or shipbuilding, our Welding Neck Flanges are designed to provide superior performance and longevity.
Why Choose Rishabh Industries’ Welding Neck Flanges?
Global Standards Compliance – Manufactured as per ANSI B16.5, ASME B16.47, and DIN specifications.
High-Grade Materials – Available in carbon steel, stainless steel, alloy steel, duplex & super duplex, and special alloys.
In-House Testing & Quality Control – Every flange undergoes rigorous testing including ultrasonic testing (UT), radiography, and pressure testing.
Fast Turnaround & Global Shipping – Efficient delivery timelines for domestic and international orders.
Basic Specification of Welding Neck Flanges
| Feature | Details |
| Type | Welding Neck (WN) Flange |
| Standards | ANSI, ASME, DIN, EN, BS |
| Size Range | ½” to 60” (DN15 to DN1500) |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Material Grades | ASTM A105, A182 F304/F316, A350 LF2, A694 F52/F60/F65, etc. |
| Face Type | Raised Face (RF), Ring-Type Joint (RTJ), Flat Face (FF) |
| Testing | Hydro Testing, UT, RT, PMI, MTC as per EN 10204 3.1/3.2 |
| Certifications | ISO 9001:2015, PED, IBR, API |
Benefits of Welding Neck Flanges
- Superior Stress Distribution – Conical hub design reduces stress at the base of the flange and pipe connection.
- Leak-Proof – Ideal for high-pressure and high-temperature systems.
- Enhanced Fatigue Resistance – Excellent in applications with continuous vibration or temperature fluctuations.
- Long Service Life – Durable construction using certified, corrosion-resistant materials.
- Seamless Integration – Compatible with a variety of piping systems across multiple industries.
Industries & Applications
Our Welding Neck Flanges are widely used in:
- Oil & Gas – Offshore and onshore pipelines, refinery systems
- Petrochemical & Chemical Plants – Processing units, reactor connections
- Power Generation – Steam, nuclear, and thermal power plants
- Industrial Manufacturing – Process lines and mechanical systems
- Shipbuilding & Marine Engineering – Engine rooms and piping systems
- Cryogenic Applications – LNG and low-temperature environments
Frequently Asked Questions (FAQs)
Q1: What is a Welding Neck Flange?
A1: Welding Neck Flange is a type of flange with a long tapered hub that provides high structural integrity and reduces stress concentration. It is designed for use in high-pressure systems and is welded to the pipe.
Q2: What standards do your WN Flanges comply with?
A2: We offer flanges manufactured as per ANSI B16.5, ASME B16.47, DIN EN 1092-1, and other international standards.
Q3: What industries are WN flanges suitable for?
A3: Welding Neck Flanges are ideal for applications in oil & gas, chemical, marine, power, and pharmaceutical industries.
Q4: How do you ensure product quality?
Q4: Every flange undergoes in-house testing and inspection including hydro tests, ultrasonic tests, and dimensional checks.
Rishabh Industries is Manufacturer and Supplier of High-Quality Welding Neck Flanges across India.
For more information and inquiries, feel free to contact us.
Website: www.rishabhind.in
Email Id: info@rishabhind.in
Phone No: 99305 32430
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