2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54
- Product quality and cost
- Materials from which flexible liners are made
- How to choose flexible eyeliner
- Choosing between gas and water connections
Flexible hose is a hose made of elastic material, protected by a metal braid with fasteners at the ends. It is used to connect communications in hard-to-reach places (faucets, shower cubicles, toilets), where it is difficult to do this with rigid pipes. The water or gas line or flexible hose can be made of various materials. This results in a difference in the quality of flexible hoses and a different service life.
Product quality and cost
For example, flexible eyeliner from the STOUT brand is a great option for those who are used to choosing high quality without the need for overpayments. The products are manufactured in factories in Italy, where every stage of the production process is controlled. The same factories supply goods to eminent brands of the expensive segment. However, STOUT's pricing policy allows customers to purchase quality goods at an affordable price - there is no increase in value due to the promoted name.
Flexible hose is available in diameters from 3/8 to 1 ΒΌ , lengths from 400 to 1000 mm. This means that among the STOUT assortment you will surely find the right product that will reliably serve for many years.
Materials from which flexible liners are made
By design, the flexible liner is a rubber hose, which provides proper softness and elasticity.
A high-quality flexible water hose should be made with a non-toxic rubber hose. Cheap specimens are made of technical rubber.
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The flexible hose is covered with a braid on top. It can be made from aluminum, stainless steel or nylon.
Flexible pipes for water or gas reinforced with aluminum are guaranteed to last up to 3 years, and then on their own responsibility. These devices can work properly at pressures up to 5 atmospheres and temperatures up to 80 degrees
The main disadvantage of aluminum is that it corrodes when it is kept for a long time in an environment with high humidity (for example, a bath or a bath). As a result, the metal flexible hose for water collapses and entails the destruction of the rubber hose and leaks.
A stainless steel liner lives much longer - up to 10 years, and can withstand pressure up to 10 atmospheres at temperatures up to 95 degrees. The conditions in which this device can work are found almost everywhere, therefore stainless steel is the most common flexible liners
- Reinforced flexible water leader is made with nylon braid. Service life - up to 15 years, maximum pressure 20 atmospheres, maximum temperature - 110 degrees. Such liners, although they are of better quality, are rarely used, since usually the conditions for which they are adapted are rare.
- The bellows-type connection is particularly stable and has a long service life. If in the types listed above, the outer sheath is made of a metal braid, then in this case the sheath is a one-piece corrugated hose, which is more durable, but does not lose its flexibility.
How to choose flexible eyeliner
In order for a flexible eyeliner to last a long time, you need to choose it correctly.
- Before choosing a flexible hose, you should find out the water temperature and pressure in your system, and you should buy a product that meets these parameters;
- Regarding the same parameters, as well as the environment in which the flexible liner will work, you should choose the material from which it is made. In order not to buy an aluminum hose at the price of a stainless steel hose, you need to weigh it in your hands. Aluminum should be much lighter;
- A reliable flexible water line should be soft. If it is not endowed with such a property, it threatens to break the flexible hose. It is easy to check elasticity and softness. It is necessary to take the eyeliner by one end: if it takes a vertical (hanging) position, then it is quite elastic, if its position is almost horizontal, then it is too hard;
- The fittings that are located at the ends of the flexible hose must be free of cracks, and their sleeves must be pressed completely around their circumference, capturing the braiding material.
Flexible hose fittings should be made of brass, a metal that will not rust. There are instances of eyeliners in which these elements are made of aluminum or plastic. In the case of aluminum fittings, they will rust and become unusable in a humid environment, and plastic ones will simply break down over time by themselves in any environment. So it makes no sense to pay for stainless steel in this case.
If there is a characteristic chemical smell from the hose of the flexible hose, then it is made of technical rubber. The smell can remain for a long time, and this material is also characterized by fragility and low elasticity. Therefore, it is best to avoid these instances
- Flexible connections for water differ in temperature indicators - there is for cold and hot water. Cold water hoses are marked with a blue tape woven into a metal braid, hot hoses - red, universal - both.
- The flexible metal hose must be equipped with a secure union nut. In low-quality specimens, this nut may be too thin, which may crack and break during tightening or operation.
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If the eyeliner is not chosen correctly (or is too cheap), then you can get the result in the form of a quick leak, which can happen suddenly. A gas leak will be especially dangerous. When buying hoses, pay attention to working pressure and service life.
Choosing between gas and water connections
Sometimes a flexible gas leash is installed on the water supply system. This happens for the sake of economy (gas is lying around somewhere, but I don't want to buy water), ignorance or incompetence of sellers (they gave bad advice). In fact, this cannot be done, and the gas supply must only transport gas. There are two reasons for this.
Gas lines are usually equipped with aluminum fittings, even if the rubber hose braid is stainless steel. This means that they will rust in humid conditions, and soon become unusable, begin to leak.
Flexible water connections undergo special certification and are environmentally friendly for humans. This is necessary because they let drinking water pass through them. Gas lines do not undergo such certification, respectively, they can be hazardous to health, poisonous.
Therefore, in gas pipelines, only bellows types of flexible connections can be used.
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