Pressure, Temperature & Aging

Pressure, Temperature & Aging

– Design Limits Explained

Introduction

Silicone hoses must withstand combined mechanical, thermal, and chemical stresses. Understanding design limits for pressure, temperature, and aging is essential for long-term reliability.

Key Stress Factors

»Pressure – Burst and cyclic pressure requirements vary by application.

»Temperature – Continuous high temperatures affect elasticity and material hardness.

»Chemical Exposure – Coolants, oils, or hydrogen can cause swelling or degradation.

»Aging – Long-term exposure to stress accelerates material fatigue.

Hydrogen Fuel Cell Hose

Engineering Approach

»Material selection optimized for pressure and temperature

»Reinforcement design tuned for pressure cycling

»Thermal and chemical aging validation

»Dimensional stability verification

Typical Applications

»Automotive turbo and intercooler hoses

»EV battery and motor cooling loops

»Hydrogen fuel cell air supply and coolant hoses

»Industrial silicone hose systems

Conclusion

Proper design, material selection, and validation ensure silicone hoses withstand pressure, temperature, and aging, maintaining system reliability. HOTOP engineering ensures every hose meets strict service life expectations.