Air Hose Pressure Rating

Air Hose Pressure Rating

Air hose pressure rating is a crucial parameter that indicates the maximum pressure an air hose can safely withstand. Here is all you need to know about it:

Definition and Key Parameters

• Working Pressure: It refers to the maximum continuous pressure that a hose can safely handle during normal operation. It is the pressure value under normal working conditions and is usually expressed in units such as PSI (pounds per square inch) or bar.
• Burst Pressure: This is the maximum pressure that the hose can withstand before it fails or bursts. Generally, the burst pressure is 3 to 4 times higher than the working pressure. It provides a safety margin to prevent the hose from bursting under extreme pressure conditions.

Factors Affecting Pressure Rating

• Hose Material: The materials used for the inner tube, reinforcement layer, and outer layer of the hose significantly affect its strength. For example, hoses with steel wire braiding or synthetic fiber reinforcement can usually withstand higher pressures than standard rubber hoses.
• Temperature: High temperatures can weaken the hose material and reduce its pressure - bearing capacity. When selecting a hose, the temperature range of the working environment must be considered.
• Hose Size: Smaller - diameter hoses can generally handle higher pressures than larger - diameter ones because they have a smaller surface area exposed to internal pressure.
• Bending Radius: Excessive bending or kinking of the hose can reduce its pressure - bearing capacity。