Expander Flanges Manufacturers in India, Stainless Steel Expander Flanges, Carbon Steel Expander Flanges manufacturer India
Expander Plate Flange Exporter, ASTM A182 SS Expander Plate Flange, Alloy Steel Expander Plate Expander Distributors, ASME SA182 Super Duplex Stainless Steel Expander Plate Expander, ASME B16.36 Expander Expander Exporters, Duplex Steel Expander Plate Expander, Copper Nickel Expander Plate Expander, Industrial Expander Expander Manufacturer in India
Valour Alloys Inc., we carry a full inventory and Supply Expander Flange 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.
An Expander Flange is a type of welding neck pipe flange used to increase pipe size at the flange connection (see sketch). Expander flanges are also known as a cost effective alternative to using a separate reducer-welding neck flange combination. The expander flange is available in a range of sizes and materials.
An Expander Flange, also known as a Nipoflange or Weldolet, is a type of flange designed to provide a smooth transition between a pipe and a larger-sized pipe or vessel. It is used in piping systems where the diameter of the pipeline needs to be expanded to accommodate higher flow rates or changes in process conditions. The Expander Flange is welded to the smaller pipe, and the larger end allows for the connection of a larger pipe or vessel.

Expander Flanges Manufacturer

Expander Flanges Exporter
Manufacturer and Exporter of Expander 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.
Expander
- Expander Flanges are employed in situations where a gradual increase in pipe diameter is required.
- They find applications in various industries, including oil and gas, petrochemical, chemical, and power plants.
Design
- Expander Flanges have a tapered design, with the smaller end being welded to the existing pipe.
- The larger end accommodates the connection of a larger pipe or vessel.
Welding: Welding is a critical aspect of installing Expander Flanges. The smaller end is welded to the existing pipe using standard welding procedures.
Materials: Like other types of flanges, Expander Flanges can be manufactured from various materials such as carbon steel, stainless steel, alloy steel, and other alloys, depending on the specific requirements of the application.
Pressure Rating: The pressure rating of an Expander Flange depends on the material and design specifications. It is crucial to select a flange with the appropriate pressure rating for the given operating conditions.
Installation: Careful installation is essential to ensure a leak-free connection. Proper welding procedures and inspection should be followed to guarantee the integrity of the joint.
Cost and Efficiency: While Expander Flanges provide a cost-effective solution for pipe size transitions, it's essential to consider factors such as material costs, installation complexity, and long-term maintenance.
Standards and Specifications: Expander Flanges are manufactured in accordance with industry standards and specifications such as ASME B16.5 and ASME B16.9, which define the dimensions, materials, and testing requirements.
Expander Flanges play a crucial role in piping systems where a smooth transition between different pipe sizes is required. Proper design, material selection, and installation practices are essential to ensure the reliable and efficient operation of the piping system.
Expander Flanges Range
Flanges Specification | ASTM B151 / ASME SB151 |
Flanges Manufacturing Process | Hot Forging / Rolling / Machining |
Flanges Other Grades | Copper Nickel Cu-Ni 70 / |
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
Expander Flanges
Stainless Steel Expander Flanges | Duplex Steel Expander Flanges |
Super Duplex Steel Expander Flanges | Carbon Steel Expander Flanges |
Alloy & Chrome Moly Expander Flanges | Inconel Alloy Expander Flanges |
Incoloy Alloy Expander Flanges | Monel Alloy Expander Flanges |
Hastelloy Alloy Expander Flanges | Nickel Alloy Expander Flanges |
Titanium Expander Flanges | Aluminium Expander Flanges |
Copper Alloy Expander Flanges | Alloy 20 Expander Flanges |
What is a Expander Flanges?
An expander flange looks like a weld neck flange,but it has the hub expanding to a large size(one or two sizes).It is designed to transfer stresses to the pipe,thereby reducing high stress concentrations at the base of the flange.It is used to increase pipe size at the flange connection.
Expander flanges are also known as a cost effective alternative to using a separate reducer-welding neck flange combination.The expander flange is available in a range of sizes and materials.We manufacture & supply expander flanges with different materials such as carbon steel,stainless steel,alloy steel.
Expander 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 Expander Flange 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 Expander Flange 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 Expander Flange is packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All Expander Flange 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 Expander Flanges to Countries -
We Export Expander 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 Expander Flanges to Cities -
We Export Expander 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.