The quality of the hose

See the above product photos, I do not know how you feel? In the previous article, I shared with you a lot of information about hoses and related solutions. Today, we are going to talk with you about hose quality. Hope to help you: know hoses, choose hoses, use hoses.

First, several misunderstandings about the use quality of hoses

First of all, let’s take a look at the use of hoses on the quality, we have what misconception

1. The thicker the hose, the better the quality. Many with domestic hose friends, often pass this point. The basic structure of the hose consists of an inner adhesive layer, an outer adhesive layer and a reinforcing layer. The wall thickness is the sum of three layers of structure, the concept of wall thickness, hose pressure will be a little larger, but in fact, the core factor affecting the size of hose pressure is the reinforcement layer, including the reinforcement layer of the structure, material and other factors

2. The more transparent the hose, the better the quality. Many friends of the Food and drug industry, often have this view. They think the quality of a hose that can see the flow of a medium is good, but a hose that is opaque, like rubber, and can’t see the flow of the medium inside is bad. This view, in fact, is a misunderstanding. Because transparency and the inherent characteristics of the material itself, and the quality of the hose does not have much relationship

3. Smelly hoses are of poor quality. This issue is of particular concern to the food and pharmaceutical industry. Many customers believe that the food delivery hose should not have any taste. In fact, rubber hoses also have an inherent smell that corresponds to the material itself, a smell that has no effect on the quality of the hoses or the delivery of media, in addition, food hoses must not contain any other odor.

4, hose in the use of problems, most people will think that the quality of the hose. This is also common. In fact, for the problems in use, there are many reasons: product quality problems, selection errors, pressing problems, installation problems, the use of non-standard operation

Second, affect the use of hose quality factors.

Next, let’s take a look at the factors that affect the quality of the hose.

1, production process, material formula. This is the fundamental condition to determine the quality of hoses, reflected in the brand, origin, and so on, as far as possible to choose high-profile, good market reputation brand hoses, quality assurance

2.Store and transport hoses. Rubber Hose has a certain storage period and storage conditions, reasonable storage conditions, can reduce the aging rate, extend the life of the hose. Rubber itself is soft, the transport should avoid extrusion, knock, wear, scratches and so on

3.Proper selection should be based on the actual use of the hose, including the compatibility of media, pressure, temperature, bending, and so on, hose material and transport media should be compatible, use * big pressure (including instantaneous * big pressure should be in the hose working pressure range) , medium * high temperature should be lower than the hose specified * high temperature, installation bending degree should be less than the hose * small bending radius. For the installation of bending requirements, according to the actual situation, such as adding elbow reasonable transfer bending

4.Reasonable operation, use must pay attention to the norms of civilized use, strictly in accordance with hose parameters, not violent use, otherwise it will cause damage to the hose structure, reduce service life

Third,How to distinguish the quality of hose.

Knowing the factors that affect it, next, let’s take a look at how to identify the quality of the hose?

1. Appearance judgment. That is, one look two touch three smell, to see the hose wall color, whether bright, whether there is a clear production of vulcanization scars, whether the hose diameter is concentric circle, wall thickness is uniform, whether the strength of steel wire is good enough; whether the bending is easy, flexibility is good enough; is the normal smell of rubber, there is a pungent smell and so on

2. Tool detection. If can not pass the outer tube judgment, but must have the accurate detection result, may use the professional detection equipment, does the aging test, the flexing test, the pressure test and so on method detection.

3.Use Experience and brand identification. No matter how good the test is, it can’t compare with the real experience. You should know the quality of a product. After the initial selection, you can observe, record and adjust it. You can understand the quality of the hose very well