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Rubber hose assemblies are common in industrial and municipal projects. Yet, hoses come in complex types with varied structures—and they face different working conditions. For this reason, a rubber hose’s lifespan depends not just on its quality, but also on proper use and maintenance. Even high-quality hoses will have shortened lifespans if misused. In severe cases, misuse can cause serious accidents and property damage. So, what should you keep in mind when using rubber hoses?
Precautions for Using Rubber Hose Assemblies
First: Stick to Designed Materials
Hoses and their assemblies should only transport materials they’re designed for. Using them for other materials shortens their lifespan. Worse, it can cause failures during operation.
Second: Manage Length Properly
Hose length changes under high pressure—typically by -4% to +2%. Mechanical movement also causes length shifts. Be mindful of these changes to avoid issues.
Third: Never Exceed Working Pressure
Don’t use flexible rubber hoses beyond their designed working pressure. This reduces their lifespan and raises the risk of bursting during use.
Fourth: Avoid Extreme Heat
Never use soft rubber hoses in temperatures above 120℃. High heat degrades rubber, weakening its properties and shortening its service life.
Fifth: Respect Bending Limits
Don’t bend hoses beyond their minimum bending radius. Also, avoid bending near the joints. Excessive bending blocks liquid flow. Over time, it can even break the inner tube, leading to leaks.
Sixth: Protect Against Surface Damage
Never drag natural rubber hoses across sharp or rough surfaces. This damages the hose and increases the chance of failure.
Last: Clean After Use
Clean hoses after each use—especially chemical hoses and composite hoses. These often transport acids, alkali, or solvents. If left uncleaned, residual corrosives can damage the hose and contaminate future materials.
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