DN50 high-speed rotary joint

DN50 high-speed rotary joint is an industrial sealing device used to transport fluid media from fixed pipelines to rotating equipment. Its nominal diameter is 50 millimeters and is designed specifically for high-speed working conditions.

The DN50 high-speed rotary joint is a precision mechanical component, whose main function is to ensure continuous transmission of the medium while preventing leakage, series connection, or external pollution. It is widely used in twelve major industries including papermaking, rubber, chemical, plastic, textile, printing and dyeing, steel, metallurgy, pharmaceuticals, drying, food and woodworking, and plays a key role in metal processing, machine tools, electrical and energy manufacturing.
Structure and Technical Characteristics
Precision bearing support: Two high-precision imported bearings (such as self-aligning roller bearings) are usually equipped internally to ensure smooth operation, robustness, and flexibility, significantly reducing friction coefficient and wear, and extending service life.
Advanced sealing system: Adopting a balanced mechanical seal design, the sealing ring material is mostly silicon carbide, ceramic, or impregnated graphite (such as impregnated phenolic resin graphite, impregnated bronze graphite). This design reduces the wear of the sealing surface caused by the sealing load, greatly improving the wear resistance and leakage prevention performance.
Shell design:
Heat dissipation optimization: For the heat generated by high-speed operation, the shell is often made of aluminum alloy or copper alloy to enhance heat dissipation performance; Some multi-channel models have grooves on the surface of the main body to assist in heat dissipation.
Easy maintenance: The housing is equipped with an oil nozzle for regular lubrication of the bearings, and is also equipped with an observation hole for intuitive monitoring of the wear and leakage status of the sealing ring.
Connection method: Provides flange connection, threaded connection or quick change interface, with strong installation flexibility. The outer tube can be made of stainless steel material to improve corrosion resistance.