The ID of the PVC air hose is vital in determining the speed at which the compressed gas is often supplied, with the foremost common IDs being 6mm, 8mm, and 10mm. The greater the diameter, the more liters per minute (l/min) of air are often supplied to the pneumatic tool. On the opposite hand, a bigger bore also will add significantly to the load of the hose, and make it less maneuverable.
You should calculate what percentage l/min of air your application would require. Then choose the corresponding ID necessary to provide that air, and maintain its pressure over the space traveled. the upper the l/min, the larger the ID that you’re going to need, with most hand-held tools employing a 6mm hose, and more heavy-duty applications needing an 8mm or 10mm. If your pneumatic tool has an equivalent l/min requirement because of the output of your compressor, you ought to use a shorter, wider hose to minimize loss of atmospheric pressure through friction.