Ventilation hoses are an essential part of every type of building, but do you really know how to choose the right ventilation hose? As a professional ventilation hose manufacturer, I will introduce the precautions in the selection of ventilation hoses. The selection of suitable ventilation hoses mainly starts from    the dimensions, temperature, pressure and telescopic performance.

The first point: when choosing a suitable universal hose, you must first determine the size. Many customers do n’t know how to calculate the size. In fact, it is very simple. The outer diameter of the interface is large. The inner diameter of the ventilation hose is selected. , Then choosing a ventilation hose with an inner diameter of 100mm is just right.

Second point: The temperature range of the ventilation hose. When you know the temperature, you basically know which one to use. For example, the ventilation hoses below 130 degrees include aluminum foil air ducts, nylon cloth ventilation hoses, PVC clip mesh telescopic air pipes, There are several types of PP telescopic air ducts, and aluminum foil + glass fiber composite air ducts that can withstand 150 degrees. Silicone-resistant high-temperature air ducts, cloth-type telescopic ventilation ducts, etc., which are resistant to more than 260 degrees.

The third point: After selecting the suitable ones after clarifying the size and temperature, it is necessary to clearly understand the pressure used. Generally, the pressure of the wind pipe, such as the positive pressure of exhaust air and the negative pressure of exhaust air. The amount of stress. Select the corresponding product according to the pressure of the ventilation pipe during use.

The fourth point: The ventilation ducts selected after the above points are usually divided into two types. One is a retractable ventilation hose. This duct can be stretched and compressed, and it is convenient to use and transport. . The other type is non-retractable and can only be bent. Such non-retractable air ducts tend to have smoother inner walls and less resistance to ventilation and exhaust, but because they cannot compress the volume, they will be larger and the transportation cost will be higher.

As long as the above four points are clear, I believe that everyone can basically choose the right ventilation hose.