Weld Neck Reducing Flange
Weld neck reducing flanges feature a long tapered hub that provides extra strength in high pressure systems.
Minimum Order : 200 unit
Customization as per requiments
| Flanges Types | Weld Neck, Slip On, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
rajkrupa Metal Industries is an engineering-driven company with a great reputation which is also a reliable Reducing Flanges Manufacturer giving out precision-built flanges made to connect pipes of different diameters for high-pressure and high-temperature operations. Every reducing flange is made to very controlled conditions according to the standards of ASME, ASTM, and DIN and is obtainable in stainless steel, carbon steel, alloy steel, duplex, and other high-quality alloys. These flanges guarantee that the pipe transitions are done safely while the structural integrity is maintained and the flow efficiency is not interrupted in different industrial systems.
We are committed to producing fully personalized reducing flanges that can satisfy the differing requirements of the projects and also provide the freedom to choose the face type, pressure class, flange thickness, and bore size. Our skills are world-wide and we are open to any trading B2B business which means smooth procurement and technical support. Besides reducing flanges, we are also offering Lap Joint Flanges, which are characterized by pliability and easy orientation in the most important piping networks. With export-grade packaging, MTC certification, and 2025 updates inclusive of downloadable dimensional charts, we are the epitome of consistent quality, on-time delivery, and great dependability for industrial applications all over the world.

Weld neck reducing flanges feature a long tapered hub that provides extra strength in high pressure systems.

Threaded reducing flanges have internal threads that eliminate the need for welding, making them suitable for hazardous or flammable environments.
What is the purpose of a reducing flange in industrial piping?
A reducing flange is used to connect pipes of differing diameters within a high pressure or space constrained piping system. Unlike using a reducer and separate flange, this single unit saves space and reduces potential leak points. It is perfect for process lines that need to change in diameter without compromising the integrity of the flow or pressure. These flanges are frequently used for small and strong connections in power plants, chemical plants, refineries and HVAC installations.
Which grades of materials are commonly used to reduce flanges?
Reducing flanges are made from a large array of materials based on the media and the conditions of operation. Common grades include carbon steels (ASTM A105, A350 LF2), alloy steels (F11, F22) and stainless steels (304, 316). We also supply high performance alloys for high temperature or corrosive applications, such as Inconel, Hastelloy and Monel. All materials are to standards like ASTM, ASME and EN and are supplied with full test certificates and traceability reports.
What is a reducing flange?
Reducing flange is a dedicated flange employed to join pipes of varying diameters without requiring an additional reducer fitting. It allows for a seamless transition from the different pipe diameters because it has a bigger bore on one end and a smaller bore on the other. In order to manage flow rates and minimize turbulence in high pressure systems used in the oil and gas, petrochemical and power generating industries, reducing flanges eases the piping layout while reducing structural strength.
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