Quick coupling
Quick coupling is a mechanical device that mainly improves the displacement efficiency between the various working parts of construction machinery and can quickly and simply repeatedly connect and disconnect almost any fluid or gas pipeline without the use of any tools.
The advantage of quick coupling
- reduce the number of assembled components, reduce assembly costs, save time and improve work efficiency, reduce the risk of assembly operation errors to a minimum, and improve the safety in harsh working environment, but also easy to maintain and replace.
- almost no working medium outflow when off, reduce the pollution of the working environment, avoid dirt into the pipeline system, thus improving the reliability of the hydraulic system, reduce the risk of oil leakage.
Quick coupling selection
- Pressure and Flow - The selected quick change joint must be suitable for the pressure and flow of the system. To ensure that the maximum working pressure of the selected quick change joint must be equal to or greater than the maximum pressure of the system (including peak pressure).
- Pressure connections - Many quick-change connections can only be connected and disconnected when line pressure drops to zero. If conditions do not permit, you should choose a quick change connector that can be connected under pressure. But when it disconnects, the pressure must be reduced to zero. Avoid using tools to connect and disconnect quick-change connectors.
- Fluid Compatibility - Check the compatibility of materials and seals used in quick-change joints with fluid media.
- Temperature - Verify that the maximum operating temperature of the system is within the allowable range of the selected quick change joint.
- Environmental conditions - Note that certain environmental conditions may cause damage or excessive corrosion of quick-change joints. Some specific examples are in the presence of harsh chemicals, ultraviolet radiation, or salt water.
