The structure of a pipe connector is of vital importance in determining its quality and sealing properties. Poorer quality pipe connectors often take the form of a tube that is slotted at both ends and that deforms into an oval shape when tightened. This effect is often increased still further because there is too great a difference between the diameters of the clamp and the pipe. While the position of lower quality pipe connectors can no longer be corrected once it has been chosen, this remains possible with premium quality ERNST pipe connectors. This simplifies the fitting operation.
The choice and thickness of the material also have a great influence on its sealing properties. If the material is too weak or its walls are too thin then the pipe can again become deformed when it is tightened.
It is also vital to pay attention to the design of the clamp. The diameter of the screw thread determines the tensile force and therefore also the deformation that occurs when the pipe is tightened.
Deformation of the pipe inevitably leads to imperfect sealing and leakage, together with unpleasant whistling and other noises.