Press-fitting systems are among the latest trend with installers, replacing more traditional fitting methods. Generally, much faster in terms of installation, press-fittings help complete the project up to three times faster than customary methods. Thanks to this connection technology, no site assessments or hot works permits are needed, allowing the installers to get to work quickly and efficiently. The entire project is safer as well due to the absence of a naked flame, making it particularly suitable for retrofit buildings.
Press-fittings provide a reliable seal, reduce error and, when pressed correctly, are free of leaks. Generally, a press fit is the fastening of two parts – in this case, inserting a pipe into a fitting by normal force, with the interference holding both parts in place. Each press fitting is equipped with an o-ring inserted into the bead. This is then tightly pressed together in an exact, easy and reliable process with a hydraulic pressing tool. Different o-rings are used for drinking water, gas or high-temperature application.
Even though the pressing process is relatively simple, suppliers such as SANHA provide technical seminars or on-site training and certification for installers switching to the press-fit technique or in need of additional personal training. These include topics such as the physics behind press-fit technology, standards and norms, pipework design considerations to prevent for example stagnation, or the advantages of different materials (but can expand on any content required).