When it comes to hydraulic hoses, the terms “burst pressure” and “working pressure” are critical to ensuring system safety and performance. Both pressures affect the hose’s overall functionality, but they serve different purposes in evaluating hose capacity.
What Is Burst Pressure?
Burst pressure refers to the maximum pressure a hydraulic hose can withstand before it ruptures or fails. It’s typically four times the hose’s working pressure and is used as a safety factor to prevent accidents or damage to machinery. Burst pressure is an important consideration when selecting hoses for high-pressure applications, as it indicates the absolute limit of the hose’s strength.
What Is Working Pressure?
Working pressure, on the other hand, is the maximum pressure a hose can handle during regular operation. It is the consistent pressure that the hose is designed to safely endure over its lifetime. Exceeding this pressure for extended periods can lead to premature hose failure or degradation, which can compromise the entire hydraulic system.
Why Are These Pressures Important?
Both burst and working pressures are crucial for different reasons:
- Safety: Burst pressure ensures a safety margin to protect against accidental over-pressurization.
- Longevity: Operating within the working pressure helps extend the life of your hose by preventing stress and wear.
- System Efficiency: Keeping within the working pressure ensures that your hydraulic system performs efficiently without risking breakdowns or leaks.
The Importance of Safety Factors
Hydraulic hoses are designed with safety factors, typically 4:1, meaning the burst pressure is four times the working pressure. This ratio ensures that the hose can handle pressure spikes or accidental overloading without failing.
How to Choose the Right Hose Based on Pressure
When selecting a hydraulic hose, it’s essential to consider both the burst and working pressures. Ensure the hose’s working pressure suits your application, and the burst pressure offers enough safety margin. Always review the manufacturer’s specifications to confirm that the hose meets the requirements of your hydraulic system.
Regular Inspection and Maintenance
It’s crucial to regularly inspect your hydraulic hoses for wear, leaks, and damage. Monitoring working pressure and checking for signs of degradation can prevent sudden hose bursts. If a hose shows signs of wear, it’s essential to replace it immediately to maintain system integrity.
Conclusion
Understanding the relationship between burst pressure and working pressure is key to maintaining a safe and efficient hydraulic system. Always ensure your hose operates within its specified working pressure and monitor for signs of wear to prevent failures. By doing so, you ensure the longevity and reliability of your hydraulic components.


