The hose for the compressor, or, as it is also called in another way, the "sleeve", is selected taking into account several parameters. Consider the main ones.
Working pressure
This is the most important, because if this parameter does not correspond to the load exerted on the hose, its gradual destruction will occur, the result of which is a rupture. Therefore, it is necessary to approach it with great responsibility. The pressure during operation of the lines to which the hose for the compressor is connected can, in individual cases, reach a value of 10 atmospheres, but usually it does not exceed 8 bar. Even though the pneumatic tool is capable of working at the above pressure, it may happen that the load control regulator is already set to maximum. In this case, for further work it is necessary to increase the value, but this cannot be done. All the pressure created by the unit will fall on the hose for the compressor. That is why, when choosing, it is necessary to take into account the maximum possible load. Almost any compressor hose has a certain margin of safety (from 2.5:1 to 4:1), but you should notforget that excessive load leads to rapid wear of the device.
Compressed air consumption
When purchasing a rubber hose for a compressor, consider its inner diameter, which directly affects the flow it takes. To correctly select this parameter, it is necessary to know the flow rate of the compressor unit. On most of these devices, this data is printed directly on the case. If they are not there, look at the product passport. The main hose has the largest diameter. When selecting it, it is necessary to take into account the possible length of the entire existing line.
Operating temperature
This characteristic allows the compressor hose to be in working condition within a given range of temperature fluctuations. At high loads, the temperature rises and, as a result, the resistance of the hose to excess pressure decreases, and as a result of exposure to low temperatures on the air installation, the walls of the connecting sleeve may be destroyed and cracked. Therefore, in order to avoid such a situation, it is imperative to take into account the material from which the air hose for the compressor is made. PVC sleeves have a small operating temperature range.
Also, in addition to the above parameters, the hose for the compressor used to work with pneumatic tools must be light in weight, be quite flexible and durable. If the unit connected to it has a low power, up to 100 l / min,the best option would be a polyamide or polyurethane tube. In some cases, with large production capacities, it is better to use a spiral hose. It has a larger resource, and you don't have to worry about its reliability.
So now you know what are the main parameters to consider when choosing a pneumatic hose.
