Correct Diameter of Hose Clamp

Hose clamps come in a range of diameters, so it is important to choose the correct size.

The following points will help you in selecting the right diameter hose clamp:

  1. Only measure the outside diameter of the hose when it has been pushed onto the end of the pipe fitting, as often there will be expansion at this point.

  2. Once the outside diameter has been measured, check the dynamic range of the hose clamp to ensure that it can be tightened to the correct size. An allowance should be made for the compression of the hose.

  3. Ideally, the required diameter will be close to the mid-range of the selected hose clamp. However, if this is not possible, or the hose clamp has a narrow dynamic range; it is advised to obtain sample sizes above, and below, the selected size, due to the difficulty in determining the required hose compression.