TinnerFlow™3rd YearFan ConnectionsYELLOW · Check First
A flex connector that balloons like a drum is not handling the pressure, velocity, weather, or clamping detail. Replace with the approved heavy-duty connector material and proper mechanical clamp/ring detail.
Flexible connectors isolate vibration, but the material and connection method still have to match the fan pressure, discharge velocity, location, and weather exposure.
If it balloons or tears loose on startup, stop the fan and inspect the fabric, collar, clamps, grip pins, and pressure direction. The recovery is usually stronger rated fabric, proper slack, reinforced edges, and a real clamping/ring detail per the equipment/project spec.
Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.