No liability for defects on the part of the processor: The press fittings of the PURAPRESS® system were specially developed for drinking water applications. Thanks to the lead-free material silicon bronze (CuSi), they do not release any lead into the drinking water. 

lead-free press fit...

Lead does not belong in drinking water. Rely on lead-free PURAFIT® threaded fittings and avoid costly liability for defects when limit values are exceeded! Especially for drinking water, UBA-approved material silicon bronze. 

CuSi fittings | instead of gunmetal

System press fittings made of lead-free silicon bronze CuSi | MultiFit®-Flex, MultiFit®-PE/RT and MultiFit®-PEX multilayer composite pipes | DVGW W 542, for drinking water and heating installations, copper pipes, plastic pipes, piping system, 

Modern ball valve made of material CW617N and lead-free silicon bronze CuSi (CW 724R). Shut-off valve for many applications such as heating, cooling, refrigeration, etc.