Reducing Flanges

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At Metafit Piping Industries, we specialize in manufacturing and supplying high-precision Reducing Flanges that are engineered to simplify pipe size transitions in complex piping systems. These flanges are critical in industrial projects where space constraints and system integrity are key concerns. As top-tier Reducing Flanges Manufacturers in India, we serve global industries by offering durable solutions built to last. Our flanges meet international specifications and serve both high-pressure and low-pressure applications with superior dimensional accuracy.

Reducing Flanges By Metafit Piping Industries

Reducing Flanges Manufacturers, Reducing Flanges Suppliers, Reducing Flanges Stockists, Reducing Flanges Exporters.

What is Reducing Flanges?

What is a Reducing Flange? A Reducing Flange is a type of pipe flange used to connect pipes of different diameters without using separate reducer fittings. Unlike standard flanges, it allows for a smooth change in pipe size, optimizing flow and minimizing turbulence. Metafit Piping Industries produces these flanges in carbon steel, stainless steel, and alloy grades suitable for various pressure classes. Being leading Reducing Flanges Suppliers, we ensure every product conforms to ANSI, ASME, DIN, BS, and EN standards—making them globally compatible.

Advantages of Reducing Flanges?

The key advantages of Reducing Flanges include space-saving design, simplified installation, reduced number of components, and improved system reliability. These flanges help reduce material costs by eliminating the need for separate reducers and weld joints. Our team at Metafit Piping Industries, one of the reliable Reducing Flanges Stockists, ensures every flange is thoroughly tested and ready for challenging environments. From oil rigs to chemical reactors, they provide mechanical strength and pressure-handling capacity that sets the standard in the industry.

Reducing Flanges Manufacturers in India, Reducing Flanges Suppliers in India, Reducing Flanges Stockists in India, Reducing Flanges Exporters in India.

Industry That Use Reducing Flanges?

Metafit Piping Industries serves a diverse range of industrial sectors with premium Raised Face Flanges.

  • Reducing Flanges for Oil and Gas Industry: In upstream and downstream operations, our flanges support pressure containment and fluid regulation. We are proud to be trusted Reducing Flanges Exporters to countries like UAE, Saudi Arabia, and Kuwait where safety and compliance are non-negotiable.
  • Reducing Pipe Flanges for Petrochemical Industry: These industries demand corrosion-resistant and pressure-rated flanges. Our stainless steel flanges are ideal for transferring volatile substances in facilities across the USA and Germany.
  • Reducing Flange Fittings for Water Treatment Plants: European countries like Italy and France rely on our duplex and super duplex flanges for sustainable infrastructure in water treatment and desalination projects.
  • Reducing Flanges in Power Generation Sector: Thermal, nuclear, and hydro plants in South Korea, Japan, and China count on our flanges to maintain thermal efficiency and high pressure tolerances in demanding energy systems.
  • Industrial Reducing Flanges for Food and Pharmaceutical Processing: Our hygienic-grade flanges are essential for sterile piping systems in UK, Canada, and Australia where sanitary design is regulated.
  • Customized Reducing Flanges for Marine and Shipbuilding: Coastal industries in Norway and Singapore choose Metafit flanges for their saltwater resistance and structural stability in ship construction and repair.

Metafit Piping Industries offers Reducing Flanges in a wide range of international standards and pressure classes such as ASME B16.5, B16.47 Series A & B, DIN 2633, EN 1092-1, JIS B2220, and BS 4504. We stock flanges in grades including ASTM A105, A182 F304/F316, A350 LF2, and various exotic alloys. This commitment to global compatibility makes us one of the most trusted Reducing Flanges Exporters from India with a presence in over 40 countries.

Reducing Flanges Manufacturers in US, Reducing Flanges Suppliers in US, Reducing Flanges Stockists in US, Reducing Flanges Exporters in US.

Across the world, Reducing Flanges may be referred to differently. In the USA, they are commonly called "reducing weld neck flanges" or "step-down flanges." In Germany, they’re often known as "Reduzierflansche," while in France they may be called "brides de réduction." In the Middle East, the term "transition flanges" is widely used. Regardless of terminology, Metafit Piping Industries delivers consistent quality and global-standard engineering to meet every regional specification.

Reducing Flanges Specifications?

ASME B16.5 Reducing Flange Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Reducing Flanges b16.5 Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Reducing Flange, ASME Reducing Flange, BS Reducing Flange, DIN Reducing Flange, EN Reducing Flange, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
ANSI B16.5 Reducing Flangese Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Reducing Flange
Stainless Steel Reducing Flanges Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Reducing Flange
JIS ANSI B16.5 Class 150 reducing threaded flange 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Reducing Flange
UNI ASME B16.5 Reducing Flanges 6Bar 10Bar 16Bar 25Bar 40Bar Reducing Flange
EN ASTM A182 SS reducing wn flange 6Bar 10Bar 16Bar 25Bar 40Bar Reducing Flange
Coating For Alloy Steel reducing Flanges socket weld Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Reducing Flange
Most common types of Reducing Flange Forged / Threaded / Screwed / Plate
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production technique
  • Forged, Heat treated and machined
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

Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of ASME B16.47 Series A and B Reducing Flanges

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
Reducing 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 Reducing Flange
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Reducing Flange Uses & application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Export to Carbon Steel Reducing Flange 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

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