Turnon Alloys is a trusted name among Reducing Flanges Stockists, delivering precision-engineered solutions for pipeline systems across industries. Reducing flanges are a critical component in piping systems where there's a need to connect pipes of different diameters without the use of reducers or additional fittings. These flanges are typically used in high-pressure environments where space constraints and flow control are vital.

A reducing flange is a specialized flange that allows the connection between pipes of varying diameters. It combines the functionality of a standard flange and a reducer into a single piece, saving space and reducing turbulence. Turnon Alloys manufactures reducing flanges in multiple dimensions and materials including ASTM A105 carbon steel, ASTM A182 stainless steel, and in full compliance with ASME B16.5 and B16.47 standards.
As one of the most reliable Reducing Flanges Suppliers, Turnon Alloys offers a range of benefits. These flanges simplify installation, reduce leakage risks, and lower overall fabrication costs by eliminating extra fittings. They're available in raised face (RF), flat face (FF), and ring-type joint (RTJ) styles, suited for applications in petrochemical, oil & gas, and marine industries. With their robust construction and precise machining, our reducing flanges enhance performance and longevity in critical applications.
Turnon Alloys also stands out as a prominent Reducing Flanges Stockists, maintaining a ready inventory of flanges in grades such as ASTM A350 LF2 (low-temperature carbon steel), ASTM A694 F52/F60 (high-yield carbon steel), and ASTM A182 F304/F316 (austenitic stainless steels). These meet rigorous global standards and are thoroughly tested for pressure handling and corrosion resistance.
Internationally, reducing flanges are called by various terms. In Germany, they're often referred to as Reduzierflansche; in France, Brides Réductrices; in Japan, 縮小フランジ (Shukushō Furanji); and in the Middle East, they may be known as reducer flanges. Turnon Alloys ensures compatibility with global pipe dimensions under standards like DIN, ANSI, JIS, EN, BS, and GOST. For example: ANSI B16.5 – USA, EN 1092-1 – Europe, JIS B2220 – Japan, BS 4504 – UK, GOST 12821 – Russia
Known as reliable Reducing Flanges Exporters, Turnon Alloys delivers to over 40 countries, offering mill test certifications, customized marking, and export-ready packaging. Our flanges are used in offshore drilling rigs, refineries, chemical plants, and water treatment systems worldwide.
Specification Of Reducing Flanges
Grade | ASTM A105, ASTM A350 LF2(low - temperature carbon steel), ASTM A350 LF3(low - temperature carbon steel), ASTM A694 F42, F46, F52, F60, F65, F70, ASTM A182 F1, F5, F9, F11, F12, F22, F91, ASTM A182 F304, 304L, 304H, ASTM A182 F316, 316L, 316Ti, ASTM A182 F310, 310S, ASTM A182 F321, 321H, ASTM A182 F347, 347H, ASTM A182 F904L, ASTM A182 F44, F45, F51, F53, F55, F60, F61, ASTM SB 61, SB62, SB151, SB152, ASTM SB564, SB160, SB472, SB162 |
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Pressure Classes | Cl 150, Class 300, Cl. 400, 600, Class 900, Cl 1500 and 2500 |
Sizes | From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB) |
Face Type | FF, RF, LMF, SMF, RTJ, LJF. |
JIS Standards | 5 K, 10K, 16K, 20 K, 30K, 40K, 63 K |
UNI/ DIN / EN Standard | 6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar |