Damage factors of high pressure hose assembly

During the use of the high pressure rubber hose, the rubber hose will be damaged due to its own quality problems or improper usage and installation.

1. Poor quality

The high pressure rubber hose is composed of an inner rubber layer, a reinforcing layer, an outer rubber layer and hose fittings. The inner and outer rubber layers of the high pressure hoses are made of high-quality oil-resistant synthetic rubber.

The inner and outer rubber layers of the poor-quality high pressure hoses are prone to the following phenomena: uneven thickness of the hose, poor air tightness, large variation of the shape after pressurization, and insufficient adhesion to the steel wire layer, etc.

The reinforcing layer of the high pressure hose is obtained by braiding or winding high-strength steel wires, and it is easy to occur in the steel wire reinforcing layer of the rubber hoses: the steel wire is braided or wounded too tight or too loose. These phenomena mentioned above are typical of poor-quality high pressure rubber hoses, which can lead to high pressure rubber hoses prone to leaks, corrosion of steel wire layers and pipe ruptures at weak points.

Therefore, when purchasing high pressure rubber hoses, we must pay attention to the quality of high pressure rubber hoses, and how to distinguish the quality of high pressure rubber hoses, you can read the following article: How to distinguish the quality of high pressure rubber hoses.

In addition, accessories that are indispensable and closely related to the high pressure rubber hoses during the use--the hose fittings, its quality also greatly affects the damage of the high pressure rubber hoses.

First of all, it must be selected properly. If the parameters such as the structure, material, size, crimping amount and crimping speed of the fitting are selected improperly, it may cause damage to the fitting, which will lead to the leakage of oil and the corrosion of the high pressure rubber hoses.

Secondly, in the case of selecting appropriate parameters and suitable fittings, we should also pay attention to the quality of hose fittings. Poor quality hoses fittings may have problems such as damage to the inner rubber layer and damage to the steel wire layer that cannot be noticed in time during the crimping process, and the hose will damage during use. Therefore, the selection of high-quality and suitable high pressure rubber hose fittings is also crucial.

2. Unreasonable use

In the case of selecting high-quality high pressure rubber hoses and hose fittings, if the high pressure rubber hoses are used improperly, it will also cause damage to the high pressure rubber hoses and greatly shorten the life.

First of all, unreasonable selection and installation of the high pressure rubber hose will cause its damage. When making a selection, be sure to choose a hose with a suitable steel wire reinforcement layer, suitable length, and suitable material. During the installation process, it is also necessary to pay attention to the rationality of the installation method, such as avoiding twisting, avoiding friction, etc.

Secondly, during use, the high temperature of the conveying oil will also cause damage to the high pressure rubber hose. The high temperature oil will accelerate the aging of the inner rubber, and the strength and sealing performance will be weakened by the high temperature. Rapid changes in oil temperature during use can also cause the same problem, which in turn can lead to rupture of the high pressure rubber hose. Therefore, in the process of use, we must pay attention to the change of temperature and take corresponding cooling measures.

In addition, the high pressure rubber hose is subjected to frequent and violent shocks, which will also cause damage and burst to the high pressure hose. During the working process, the high pressure rubber hose is impacted by the pressure of the conveying oil, which will cause local damage to the hose or loose fittings, resulting in oil leakage or rupture of the high pressure hose. Therefore, when turning on the valve, it should be done slowly.

The above are the common factors that cause damage to the high pressure rubber hose. In the process of selection and use, the principles of use and installation should be followed as much as possible. If any damage occurred, the high pressure rubber hoses should be replaced in time to ensure normal operation.