spectacle blind flanges

Spectacles Blind Flange


Slip-on Flange

Slip-on Flange

Reducing Flange

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Elite Piping Manufacture Co., Ltd
Reducing Flange

A reducing flange is a type of flange used in piping systems to connect pipes of different diameters. It is designed with a larger diameter on one end and a smaller diameter on the other, allowing it to connect pipes of different sizes.

Reducing flanges are typically used in applications where a change in pipe diameter is required, such as in pump suction or discharge lines, where a larger pipe may be required to accommodate the flow of fluid, and a smaller pipe may be used downstream to distribute the flow more evenly. They are also commonly used in heat exchangers, where different pipe sizes are required on the hot and cold sides.

Reducing flanges are available in a range of sizes and pressure ratings, and can be made from a variety of materials such as carbon steel, stainless steel, and alloy steel. They are designed to be bolted to another flange or fitting, with a gasket placed between the two flanges to provide a leak-tight seal.

Like other types of flanges, reducing flanges can also be customized with special features such as hubs, special facings, or coatings to suit specific requirements. They are an important component in many piping systems, allowing for the efficient and reliable connection of pipes with different diameters.

Reducing Flanges are suitable for changing line size, but should not be used if the abrupt transition would create undesirable turbulence, as at pump connections. A reducing flange consists of a flange with one specified diameter having a bore of a different and smaller, diameter. Except for the bore and hub dimensions, the flange will have dimensions of the larger pipe size.

Rich production technology, advanced equipment, high automation degree and high production precision, complete molding. As the designated supplier of major energy enterprise groups under the jurisdiction of SASAC, the company has won a number of national, and provincial reputations.

Additional information


Carbon steel: A105, SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.


Widely used in Petrochemical, Coal Chemical, Refining, Oil and Gas Transmission, Marine Environment, Power, Heating and Other projects


ANSI, JIS, DIN, BS4504, SABS1123, EN1092-1, UNI, AS2129, GOST-12820



Molding Process

Through the forging process, using mold forming, and then through machining to complete the product processing.


ANSI class 150, 300, 600, 1500, 2500, DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160

Surface Treatment

Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint, Zinc, Hot dipped Galvanized.


No Fumigate or Fumigate Plywood/Wood Pallet or Case

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