The CPVC section shown below leaked, we are not sure on the root cause of the failure. The section was also contaminated by other building products. Poor quality assembly techniques are suspected.
The following photographs reportedly show a section of CPVC pipe and attached concealed fire sprinkler head (and adapter). The assembly leaked. It is hypothesized one or more non-standard sub-optimal repairs were made to this assembly. Photos were previously published in Fire Protection Contractor magazine. Photos by B. Blake.
Below are photos of another non-standard sub-optimally engineered CPVC based assembly.
Interesting failures below: