Partial application scenarios of flanges
Release time：2026-01-15
A flange, also known as a flange plate or flange disk, is a component used to connect pipes to one another by being attached to the pipe ends. Flanges are also employed at the inlets and outlets of equipment, serving as connectors between two pieces of equipment. A flanged connection or flanged joint refers to a detachable connection consisting of three components—a flange, a gasket, and bolts—that work together as a sealed assembly. In piping systems, "pipe flanges" refer to flanges used for connecting pipes, while when applied to equipment, they denote the inlet and outlet flanges of the equipment itself. Flanges are equipped with bolt holes, and bolts are used to securely fasten two flanges together. A gasket is placed between the flanges to ensure a tight seal.
- Gearbox / Reducer Connection
- Application scenarios: The connection points between the housing of heavy-duty gearboxes and motors, as well as the input/output flanges of reducers in mining crushers and rolling mills.
- Function: Ensures the coaxiality of the transmission system, transmits torque, and simultaneously provides sealing to prevent oil leakage.
- Features: Mostly adopted High-carbon steel forged flange Strong voltage resistance and impact resistance.
- Hydraulic system pipeline connections
- Application scenarios: Pipeline connections between hydraulic pump stations, hydraulic cylinders, and control valves in heavy machinery, such as hydraulic oil pipe flanges for excavators and hydraulic system flanges for cranes.
- Function: To achieve sealed conveyance of high-pressure hydraulic oil, prevent leakage, and accommodate high-pressure operating conditions (10–35 MPa).
- Features: Mostly High-pressure welded flange or Welding neck flange The sealing surface has high precision and is resistant to high pressure and corrosion.
- Large Rack/Base Assembly
- Application scenarios: Segmental connections of frames for heavy-duty machine tools and metallurgical equipment; flanged joints for the headframe and tailframe of mining conveyors.
- Function: Large structural components are fabricated in sections and then assembled on-site, reducing transportation difficulties and ensuring connection strength.
- Features: Adopted Plate-type flat-welded flange or Flanged adapter The bolt holes are evenly distributed, and the positioning accuracy is high. Steelmaking / Ironmaking Equipment Piping Connections
- Application scenarios: Flanges for cooling water pipelines, oxygen pipelines, and gas transmission pipelines in converters and blast furnaces.
- Function: To convey media such as cooling water, oxygen, and gas, while maintaining sealing performance under high-temperature conditions.
- Features: Adopted Heat-resistant steel flange (For example, chromium-nickel stainless steel), the sealing surface uses a metal-wound gasket, which is resistant to high temperatures (≥600℃).
- Connection of steel rolling equipment components
- Application scenarios: The bearing housing flange for the rolling mill's rolls, connected to the frame; and the shaft-end flange for the conveyor roller line in the steel rolling production line.
- Function: To secure the bearing housing position, ensure the parallelism of the rolls, and withstand the impact forces generated during the rolling process.
- Features: Thick-walled forged flange High strength and strong resistance to deformation.
- Cavity/Frame Connection for Crushing Equipment
- Application scenarios: Flange connections between the cavity and frame of jaw crushers and cone crushers; flange at the rotor shaft end of hammer crushers.
- Function: Secure the cavity position, withstand the impact force of crushed materials, and prevent the cavity from loosening.
- Features: High-strength carbon steel flange The bolt holes are equipped with positioning pins, offering excellent vibration resistance.
- Pipe/roller connections for conveying equipment
- Application scenarios: Flange at the shaft end of conveyor rollers for mining belt conveyors, flange for connecting middle sections of scraper conveyors, and flanges for mine drainage pipelines.
- Function: Connects segmented components of conveying equipment, transports media such as mineral slurry and wastewater, and prevents dust from entering the equipment interior.
- Features: Anti-corrosion coated flange (Such as hot-dip galvanized flanges) are moisture-resistant and corrosion-proof.
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