1、 Visual inspection
Color: Rubber drainage hoses are usually black or dark gray. If any abnormal color is found, it may be due to improper use or quality issues.
Surface quality: Check the surface of the hose for obvious scratches, dents, or other damages that may affect the sealing performance and service life of the hose.
Specification and size: Check whether the size of the hose meets the requirements, including parameters such as outer diameter, inner diameter, and length, to ensure its compatibility with the pipeline connection.
2、 Physical performance inspection
Pressure resistance performance: Connect the hose to the pressure testing device and test the pressure resistance of the hose by gradually increasing the pressure. If the hose ruptures or leaks after reaching the specified pressure, it may be due to improper material selection or manufacturing process issues.
Corrosion resistance: Soak the hose in a corrosive liquid for testing, and observe whether the hose can maintain its original performance and integrity. If there is obvious corrosion on the hose, it may be caused by improper material selection or manufacturing process issues.
Bending performance: Bend the hose to the specified angle and observe if it can be restored to its original state. If the hose deforms or cannot be restored to its original state during bending, it may be due to insufficient material elasticity or manufacturing process issues.
3、 Functional performance check
Sealing performance: Conduct a sealing test on the connection between the hose and the pipeline to observe whether there is any leakage. Hydrostatic testing or gas leakage testing can be used to verify the sealing performance of the hose. If leakage is found, it may be caused by unreasonable joint design or improper material selection.
Vibration resistance performance: Install the hose on the vibration equipment for testing, and observe whether it can maintain stable performance during the vibration process. If the hose becomes loose, deformed, or fails during vibration, it may be due to insufficient material strength or manufacturing process issues.
Drainage performance: Connect the hose to the water source for drainage testing, and observe whether its drainage effect meets the requirements. The drainage capacity of the hose can be evaluated by comparing the drainage volume over different time periods. If the drainage effect is poor, it may be due to improper design of drainage pipes or improper installation position of hoses.
In summary, checking whether the rubber drainage hose meets the standards requires visual inspection, physical performance inspection, and functional performance inspection. Through these inspections, it can be ensured that the quality and performance of the hose meet the requirements of relevant standards, thereby ensuring its safe operation and effective use in the drainage system.
