The Micro Test Hose should generally not be used if cracks appear on its surface. Cracks may result from material aging, repeated bending, external friction, temperature changes, or improper installation. Even small cracks can gradually expand under pressure fluctuations and continued use, compromising the integrity of the hose. Therefore, any visible cracks should be addressed promptly. The absence of immediate leakage does not mean that the hose is safe to continue using.
First, cracks may reduce the hose's pressure-bearing capacity. During operation, the Micro Test Hose must withstand pressure changes. If a damaged section remains under pressure, the cracks may spread further, increasing the risk of fluid leakage or even hose rupture. This risk can be greater in environments where equipment starts and stops frequently, pressure fluctuates significantly, or mechanical vibrations are present. Therefore, even if a crack appears minor, the hose's suitability for continued use should not be determined by visual appearance alone.
Second, cracks may affect pressure transmission and measurement stability. If the hose leaks or its internal structure is damaged, pressure transmission may become abnormal, resulting in inaccurate or fluctuating readings. In industrial equipment that requires continuous pressure monitoring, such problems may prevent operators from accurately assessing operating conditions and could increase operational risks. Therefore, when cracks are discovered, any unusual changes in measurement readings should also be noted, and the associated connections should be inspected.
Once cracks are detected, appropriate action should be taken in accordance with established safety procedures. First, stop the relevant equipment operation and ensure that the system has been safely depressurized before inspecting the hose. Do not touch, bend, or disconnect a damaged hose while it is under pressure, as this could cause the cracks to expand or lead to sudden fluid leakage. If the hose carries a hazardous medium, the applicable safety procedures must be followed carefully. Qualified maintenance personnel should handle the inspection and repair when necessary.
Regarding corrective measures, if the cracks compromise the structural integrity of the hose, the hose should generally be replaced with a suitable new one that meets the equipment's requirements. Temporary repairs using adhesive tape, ordinary glue, or similar materials are not recommended. Such methods cannot reliably restore the hose's original pressure-bearing capacity or sealing performance, and the repaired hose may still leak or rupture during operation. When replacing the hose, verify that the new one is suitable for the operating pressure, medium, temperature conditions, and connection type. The fittings should also be compatible, and the hose must be installed correctly.
In addition, the cause of the cracking should be identified. If cracks appear in areas that bend frequently, check whether the hose routing is appropriate and whether the hose is excessively bent, continuously stretched, or twisted. If cracks are concentrated in areas that come into contact with other components, check for friction, compression, or contact with sharp edges. If multiple cracks appear or are accompanied by significant hardening, discoloration, or deformation, material aging or prolonged exposure to unsuitable operating conditions may be contributing factors.
In conclusion, the Micro Test Hose should not continue operating when cracks are present. The damage should be assessed promptly, appropriate safety procedures should be followed, and the hose should be replaced when necessary. Identifying the cause of the cracks and improving installation and operating conditions can further reduce the risk of leakage and help ensure the stable and safe operation of the pressure measurement system.