Problems and solutions for flexible metal hose
High-pressure rubber hoses are industrial hoses designed for high-pressure applications. For example, sandblast hoses spray abrasive materials like shot at high pressure. While high-pressure washer hoses handle cleaning tasks and can withstand 20 Mpa. Hydraulic hoses, such as SAE 100 R1 and SAE 100 R2, are used to transfer oil.
During use, you may notice high-pressure hoses failing before their expected lifespan. What causes this? Let’s analyze the common reasons.
1. Cracks from Heat and Extreme Pressure
Pressure fluctuations are a major culprit. During operation, sudden pressure surges or drops in hydraulic hoses can cause them to rebound and impact surrounding components. This damages oil seals and leads to leaks at hose fittings. To avoid this, always operate hoses smoothly, avoiding abrupt pressure changes.
2. Incorrect Joint Installation
When replacing a high-pressure hose, start by verifying the correct length and fittings. Minimize bending in the flexible rubber hose and ensure unions are tightened properly. Avoid bending the hose nozzle, and for areas prone to wear, add protective measures to prevent bursting. Poor installation directly weakens the hose’s structural integrity.
3. Excessive Oil Temperature
In industrial operations, hydraulic systems can overheat due to prolonged use or high ambient temperatures, especially in summer. Elevated temperatures accelerate rubber aging, reducing elasticity, strength, and sealing performance—all of which increase the risk of hose bursts. If the hydraulic system’s temperature rises rapidly or exceeds safe limits, immediately identify and address the cause.
Related posts
