Weld Neck Flanges Manufacturers in India, Stainless Steel Weld Neck Flanges, Carbon Steel Weld Neck Flanges manufacturer India

Weld Neck Plate Flange Exporter, ASTM A182 SS Weld Neck Plate Flange, Alloy Steel Weld Neck Plate Weld Neck Distributors, ASME SA182 Super Duplex Stainless Steel Weld Neck Plate Weld Neck, ASME B16.36 Weld Neck Weld Neck Exporters, Duplex Steel Weld Neck Plate Weld Neck, Copper Nickel Weld Neck Plate Weld Neck, Industrial Weld Neck Weld Neck Manufacturer in India

Valour Alloys Inc., we carry a full inventory and Supply Weld Neck Flanges products in a variety of sizes widely used for marine applications due to their excellent resistance to seawater corrosion, low macrofouling rates, and good fabricability.

Weld neck flanges are used in applications where the conditions are severe and critical. Some of these conditions include high pressure, wide fluctuations in temperature and pressure, high temperature, fluids that are volatile and hazardous, and temperatures in the sub-zero range.

Weld Neck Flanges are a type of flange designed to be joined to a piping system by butt welding. They are distinguished by their long tapered neck, which transitions gradually to the diameter of the pipe. The smooth transition from the flange's neck to the pipe helps distribute stress and reduce high-stress concentrations at the base of the flange.


Weld Neck Flanges Manufacturer

Weld Neck Flanges Manufacturer

Weld Neck Flanges Exporter

Weld Neck Flanges Exporter

Manufacturer and Exporter of Weld Neck Flanges in Dimension accordance with ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092-1, DIN, etc. Certified with NACE, PWHT, HIC, SSC, Magnetic Particle Test, Dye Penereteration Test etc.

Welding Connection: As the name suggests, weld neck flanges are specifically designed for butt welding to pipes. The welding provides a strong and durable connection, making it suitable for high-pressure and high-temperature applications.

Tapered Neck: The long tapered neck of the weld neck flange helps to minimize stress concentrations at the joint, reducing the risk of cracking and providing enhanced structural integrity.

High Pressure and High-Temperature Applications: Weld neck flanges are commonly used in applications where high pressure and high temperatures are expected. The smooth transition from the flange to the pipe helps maintain the strength and integrity of the joint under such conditions.

Reduced Leakage: The welding connection provides a leak-proof seal, minimizing the risk of leakage in critical applications. This is crucial in industries such as oil and gas, petrochemicals, and power generation.

Preferred for Critical Services: Due to their design and welding connection, weld neck flanges are often preferred in critical services where the integrity of the joint is of utmost importance.

Variety of Materials: Weld neck flanges are available in various materials, including carbon steel, stainless steel, and alloy steel, allowing them to be used in a wide range of industrial applications. Flange Facings: Weld neck flanges typically have raised faces or ring-type joint facings, providing options for different sealing methods. Size Range: They are available in a wide range of sizes to accommodate different pipe diameters, making them versatile for various piping systems. Weld Neck Flanges are a critical component in piping systems, especially in applications where a strong, reliable, and leak-re

Weld Neck Flanges Range

Flanges Specification ASTM B151 / ASME SB151
Flanges Manufacturing Process Hot Forging / Rolling / Machining
Flanges Other Grades Copper Nickel Cu-Ni 70 / Copper Nickel Alloy / 30 (C71500), Copper Nickel Cu-Ni 90 / 10 (C70600)
Flanges Outer Diameter 1/2" NB TO 64" NB
Flanges Pressure Class Class 150#, Class 300#, Class 400#, Class 600#, Class 900#, Class 1500#, Class 2500# or As Per Custom Requirement
PN 6, PN 10, PN 16, PN 25 and PN 40 etc
Flanges Schedule Sch 10s TO Sch XXS or As Per Custom Requirement
Flanges Facing Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Flanges Dimension ASME B16.5, ASME B16.47 SERIES A, ASME B16.47 SERIES B, ASME B16.36, BS10, EN1092-1:2013, MSS SP44, ASA, API-605, ISO 7005, ISO 15590-3, DIN 2631--2638, DIN 2573-2576, DIN 2527, DIn 2641-2642, DIN 2565-2566, DIN2502, AWWA, AS2129 TABLE C, D, E, F, J etc..
Flanges Types Welding Neck Flange, Slip On Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Blind Flange, Orifice Flanges, Plate Flange, Long Welding Neck Flanges, Long Radius Elbow Weldoflange, Nipoflange, Expander Flange, Reducing Flange, WNRF Flange, SORF Flange, SWRF Flange, Custom Flange as per Drawing etc.
Flanges Other Testing NACE MR0175, Ultrasoung TEST, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, HIC, SSC, Sour Service etc.
Flanges Value Added Services Rolling, Drill, Punch, CNC Machining, Sand Blasting, Shot Blasting, Heat Treatment, Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Flanges Packaging Loose / Carrate / Wooden Pallet / Wooden Box / Plastic Cloth Wraps
Flanges Shipment & Transportation By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / Pressure Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes
Flanges Material Test Certificate Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC

Other Types of Flanges

Weld Neck Flanges

Stainless Steel Weld Neck Flanges Duplex Steel Weld Neck Flanges
Super Duplex Steel Weld Neck Flanges Carbon Steel Weld Neck Flanges
Alloy & Chrome Moly Weld Neck Flanges Inconel Alloy Weld Neck Flanges
Incoloy Alloy Weld Neck Flanges Monel Alloy Weld Neck Flanges
Hastelloy Alloy Weld Neck Flanges Nickel Alloy Weld Neck Flanges
Titanium Weld Neck Flanges Aluminium Weld Neck Flanges
Copper Alloy Weld Neck Flanges Alloy 20 Weld Neck Flanges

What is a Weld Neck Flanges?

A welding neck flange (also known as a 'weld neck flange') is well known for its long-tapered hub, which provides mechanical strength (helps resist 'dishing' and 'bowing'). Welding neck flanges are high integrity flanges that come in a variety of sizes, face types (flat, raised, RTJ), and grades. Because of the hub's strength and the integrity of the weld, this type of flange is ideal for high temperature and pressure applications.

A butt weld, also known as a V-weld or groove weld, is a single full weld penetration that connects the welding neck flange to a pipe or fitting. Because of the single full weld penetration, this type of flange can withstand harsh operating circumstances such as high-pressure systems, sub-zero temperatures, and higher temperatures. Other welding neck flange advantages include:

  • Excellent stress-distribution along the tapered hub.
  • Unrestricted flow with a low pressure drop across the valve (low delta P).
  • High cyclical loading capability.
  • Causes minimal turbulence.
  • Low erosion rates.
  • Means for a direct connection to elbows, tees, or reducers.
  • On larger diameter flanges, there is more available space to perform non-destructive testing on the weld (difficult on some flange designs due to the location of the weld).
  • High resistance to bending moments due to the long hub.

The Types and Applications of Weld Neck Flanges

Weld neck flanges have long tapered hubs that are butt welded to a pipe or fitting. Typically, they are utilised under harsh conditions. Conditions might be steady or vary greatly.

Two Types of Weld Neck Flanges

There are two types of weld neck flanges: normal and long. Butt weld fittings incorporate standard weld neck flanges. Long weld neck flanges are utilised for vessel nozzles and equipment. The flanges are designed to match the pipe's interior diameter or fitting. The reason it is bored to match is to decrease corrosion and turbulence inside the pipe.

Long weld neck flanges get their name from the fact that their necks are longer than conventional flanges. These flanges are utilised as nozzles for columns or barrels.

Weld Neck Flanges Uses

Weld neck flanges are employed in tough and critical environments. Some of these situations include high pressure, wide temperature and pressure changes, high temperatures, volatile and dangerous fluids, and sub-zero temperatures.

Weld Neck Flanges Application

  • Oil and Gas equipments
  • Offshore Technology
  • Seawater Desalination Plants
  • Chemical Industry
  • Airport, Malls, Buildings
  • Storage Tanks
  • Medical Industry
  • Civil Engineering
  • Pressure vessels, Reactor tanks, and Heat exchangers
  • Rotors, impellers and shafts
  • Power Plants
  • Petrochemical
  • Shipbuilding Industry
  • Mining Industry
  • Food Equipments Industry

Test Certificates

We Weld Neck Flanges with the following details Mill Test Certificate according to EN 10204 3.1, PMI Test, Test Report from NABL Approved Lab, 3.2 Certification by External Testing Authority third, ultrasonic test report, and X-ray report.

Quality Assurance

At Weld Neck Flanges all types of raw material purchase to production and product shipping. They are visually inspected for compliance with ASTM, ASME, DIN, EN and JIS codes and standards. We can also designate certified official testing agencies upon customer request so that they can witness the product's material, size and quality compliance reports.

Marking & Packing

Our Weld Neck Flanges is packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All Weld Neck Flanges are marked with our grade, batch number, size and mark. We can also do custom branding on our products as per buyer's unique requirements

Supplying Weld Neck Flanges to Countries -

We Export Weld Neck Flanges to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East Etc.

Distributing Weld Neck Flanges to Cities -

We Export Weld Neck Flanges to Navi Mumbai, Indore, Baroda, Muscat, Secunderabad, Gimhae-si, Kanpur, Colombo, Kuala Lumpur, Bhopal, Pimpri-Chinchwad, Rajkot, Haryana, Hanoi, Ernakulam, Chandigarh, Surat, Los Angeles, Hong Kong, Ahmedabad, Perth, Petaling Jaya, Hyderabad, Mumbai, Algiers, Edmonton, Ludhiana, Ho Chi Minh City, Karachi, Bangkok, Dallas, Bengaluru, Jakarta, Granada, Seoul, Cairo, Geoje-si, Rio de Janeiro, Abu Dhabi, Port-of-Spain, Sydney, London, Courbevoie, Vung Tau, Sharjah, Jaipur, Lahore, Chennai, Istanbul, Lagos, Thane, Dubai, Coimbatore, La Victoria, Calgary, Jeddah, Busan, Mexico City, Al Khobar, Caracas, Singapore, Atyrau, Manama, Kolkata, Riyadh, Jamshedpur, Brisbane, Toronto, Noida, Ahvaz, Vadodara, Doha, Visakhapatnam, Ulsan, New Delhi, Gurgaon, Bogota, Howrah, Moscow, Nashik, Ranchi, Nagpur, Al Jubail, Houston, Milan, Chiyoda, Aberdeen, Melbourne, New York, Dammam, Montreal, Santiago, Kuwait City, Pune, Tehran, Thiruvananthapuram, Faridabad, Madrid, Ankara Etc.