Things about the quality of hose use

作者Wendy

After seeing the product photos above, what do you think? In the previous article, we shared a lot of information about hoses and related solutions with you. Today, we want to talk with you about hose quality. I hope it can help you: understand hoses, choose hoses, and use hoses well.

1. Several misunderstandings about the quality of hose use

First, let’s take a look at what misunderstandings everyone has about the quality of hose use.
1. The thicker the wall thickness of the hose, the better the quality. Many friends who use domestically produced hoses often pass this point on. The basic structure of the hose is composed of an inner rubber layer, an outer rubber layer and a reinforcement layer. The wall thickness is the sum of the three-layer structure. In the concept, the larger the wall thickness, the greater the pressure the hose will bear. But in fact, the core factor that affects the pressure bearing size of the hose is the reinforcement layer of the hose, including the structure and material of the reinforcement layer. Factors such as 2. The better the transparency of the hose, the better the quality. Many friends in the food and pharmaceutical industry often have this view. They think that hoses that can see the flow of media are of good quality, while hoses like rubber that are not transparent and cannot see the flow of media inside are of poor quality. This view is actually a misunderstanding. Because whether it is transparent or not is related to the inherent characteristics of the material itself, and has little to do with the quality of the hose.
3. The smelly hose is of poor quality. This issue is of particular concern in the food and pharmaceutical industry. Many customers believe that hoses used to transport food should not have any smell. In fact, rubber hoses also contain an inherent smell corresponding to the material itself. This smell has no impact on the quality of the hose and the medium transportation. In addition, food hoses are absolutely not allowed to contain any other odor.
4. If there is a problem with the hose during use, most people will think it is a quality problem with the hose. This is also a common phenomenon. In fact, there are many reasons for problems that arise during use: product quality problems, incorrect selection, withholding problems, installation problems, irregular operations during use, etc.

2. Factors affecting the quality of hose use.

Next, let’s take a look at the factors that affect the quality of hose use. 1. Production technology and material formula. This is the fundamental condition that determines the quality of the hose, which is reflected in the brand, place of origin, etc. Try to choose a well-known brand hose with a good market reputation and quality assurance. 2. Storage and transportation of hoses. Rubber hoses have a certain storage period and storage conditions. Reasonable storage conditions can reduce the aging speed and extend the service life of the hose. Rubber itself is soft, so extrusion, bumps, wear, scratches, etc. should be avoided during transportation. 3. Correct selection. Appropriate hoses should be selected according to actual usage conditions, including media compatibility, pressure, temperature, flexibility, etc. The material of the hose should be compatible with the conveyed medium. The maximum pressure used (including the instantaneous maximum pressure should be within the working pressure range of the hose), the maximum temperature of the medium should be lower than the specified maximum temperature of the hose, and the curvature during installation should be smaller than that of the soft hose. The minimum bend radius of the tube. For installation and bending requirements, elbows can be installed according to the actual situation and other methods to reasonably transfer the bend. 4. Reasonable operation. When using, pay attention to standard and civilized use, strictly follow the hose parameters, and do not use violence, otherwise it will cause damage to the hose structure. Reduce service life

3. How to identify hose quality

Now that we understand the influencing factors, let’s take a look at how to identify the quality of hoses? 1. Appearance judgment. That is to say, look, touch and smell to see if the color of the outer wall of the hose is bright, whether there are clear production vulcanization scars, whether the inner diameter of the hose is concentric circles, whether the wall thickness is uniform, whether the strength of the steel wire is good enough; whether the bending is easy and flexible Is the sex good enough? Is it a normal rubber smell, or is there a pungent odor, etc. 2. Tool detection. If it cannot be judged by the outer tube and accurate test results are required, professional testing equipment can be used to conduct aging tests, flexure tests, pressure tests, etc. 3. Usage experience and brand recognition. No matter how good the test is, it is not as good as the real experience. Mao Zedong said that time is the only criterion for testing truth. To know the quality of a product, after preliminary selection, through use, observation, recording, and adjustment, you can have a good understanding of the quality of the hose.

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