Choosing Hose and Fitting Combinations That Don't Leak

Selecting the right hose and fitting combination is critical for reliable fluid systems. A mismatch can lead to leaks, pressure drops, or catastrophic failure. Always start by identifying the fluid type, temperature range, and operating pressure.

Hose material must resist the fluid chemically and remain flexible at expected temperatures. For hydraulic oil, use synthetic rubber; for high-temp water, use PTFE. Never assume compatibility—check manufacturer charts.

Fitting type matters: crimp fittings are permanent and ideal for production, while reusable fittings allow field repairs. Ensure the fitting matches the hose's outer diameter and wall thickness precisely. Proper insertion depth and torque are non-negotiable.

Verify pressure ratings: the hose and fitting must each handle the maximum system pressure plus safety factor. Also account for minimum bend radius—forcing a tight bend kinks the hose and restricts flow.

Finally, pressure test the assembly before installation. A simple proof test at 1.5 times working pressure catches most issues. Document the combination for future maintenance.

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