Expander Flanges are specialized piping components designed to connect a larger pipe size directly to a smaller pipe size while maintaining the flange connection. These flanges combine the functionality of a weld neck flange and a reducer into a single component, helping reduce welding costs, installation time, and system complexity. Gopal Forge Industries™ manufactures high-quality Expander Flanges engineered to meet international standards and deliver reliable performance in oil & gas, petrochemical, offshore, power generation, and industrial processing applications.
Expander Flanges, Expander Flanges Manufacturers, Expander Flanges Suppliers, Expander Flanges Stockists, Expander Flanges Exporters
Gopal Forge Industries™ is recognized among trusted Expander Flanges manufacturers known for delivering precision-engineered products that meet demanding industrial requirements. Our advanced manufacturing facility utilizes modern forging and CNC machining technologies to ensure accurate dimensions, excellent mechanical strength, and superior product consistency. Every flange is carefully inspected to meet stringent quality standards before reaching customers.
As experienced Expander Flanges exporters, Gopal Forge Industries™ supplies premium flange solutions to customers across global markets. Our export operations focus on maintaining international quality compliance, secure packaging, and efficient logistics management. This commitment allows us to support major industrial projects worldwide with dependable products and timely deliveries.
Gopal Forge Industries™ has built a strong reputation among reliable Expander Flanges suppliers by offering a wide range of sizes, pressure ratings, and material grades. Our knowledgeable team assists clients in selecting the right flange configuration based on system requirements, operating conditions, and project specifications. This customer-focused approach helps improve operational efficiency and project success.
As dependable Expander Flanges stockists, we maintain extensive inventory to support urgent maintenance requirements, shutdown schedules, and large-scale industrial projects. Our stock includes carbon steel, stainless steel, alloy steel, duplex steel, super duplex steel, and specialty alloys. Ready stock availability enables customers to minimize procurement delays and maintain uninterrupted project execution.
Among leading Expander Flanges manufacturers, Gopal Forge Industries™ continuously invests in technology, process improvement, and quality assurance systems. Every flange undergoes rigorous testing and dimensional verification to ensure compliance with international standards and customer specifications. Our dedication to manufacturing excellence has established us as a trusted partner for critical piping applications.
Being professional Expander Flanges suppliers, we provide comprehensive industrial piping solutions beyond flanges. Our product portfolio includes pipe fittings, buttweld fittings, carbon steel elbow, stainless steel elbow, concentric reducers, eccentric reducers, forged fittings, tees, valves, and other piping components. This integrated sourcing capability helps customers simplify procurement while ensuring compatibility throughout their piping systems.
Expander Flanges Manufacturers in India, Expander Flanges Suppliers in India, Expander Flanges Stockists in India, Expander Flanges Exporters in India
Expander Flanges Specification
| Size Chart |
1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
| Expander Flange Standards |
ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS SP44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Expander Flange Pressure Rating ANSI |
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Expander Flanges Pressure Calculation in DIN |
6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| Expander Flange |
5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| Expander Flange UNI |
6Bar 10Bar 16Bar 25Bar 40Bar |
| Expander Flange EN |
6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating |
Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Test Certificates |
EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc |
| Expander Flanges Production technique |
Forged, Heat treated and machined |
| Expander Flange Connect Type/ Flange Face Type |
Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special design |
As per your drawing
AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations
|
| Expander Flange Test |
Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Expander Flanges Equipment |
Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Expander Flange Origin |
Indian / West Europe / Japan / USA / Korean |
| Manufacturer of Expander Flange |
ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
ASTM A182 Expander Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
B.S: BS4504 , BS3293, BS1560, BS10
AS 2129: Table D; Table E; Table H
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
American standard (ANSI)
German (DIN)
British standard (BS)
DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM A182 F316 Stainless Steel Flanges
The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
|
| Expander Flange Uses & application |
Bitumen upgraders.
Heavy oil refineries.
Nuclear power (mostly seamless).
Petrochemicals and acids.
|
| Expander Plate Flanges Export to |
Ireland, Singapore, Indonesia, Ukraine, Saudi & Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 |
Application of Expander Flanges
Latest Price List of Expander Flanges
The latest market pricing for Expander Flanges depends on factors such as material grade, size transition requirements, pressure class, wall thickness, testing specifications, and fluctuations in raw material costs. Carbon steel Expander Flanges are generally considered cost-effective for standard industrial applications, while stainless steel, duplex steel, super duplex steel, and nickel alloy variants are available at higher market values due to their enhanced corrosion resistance and mechanical properties. Gopal Forge Industries™ offers competitive market-based pricing and customized quotations for bulk orders, EPC projects, and specialized engineering requirements.
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