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  • 1% indicates that the hose’s internal diameter can vary by 1% from the nominal size, while 4% usually refers to the variability in how much pressure the hose can withstand without compromising safety. Choosing hoses with known tolerances is essential to avoid overpressure situations and potential hose failures.


  • Conclusion


  • Pump suction hoses are flexible tubing systems that connect the pump's inlet to the liquid supply. These hoses are typically made from rubber, PVC, or other high-strength synthetic materials that can withstand both negative pressure and the corrosive properties of various fluids. The design of suction hoses often includes features such as reinforcement layers to prevent collapsing under vacuum pressure and various fittings to connect to pumps and other equipment securely.