What type of fitting must be installed in a bidet to ensure safe water temperatures for users?

A temperature regulator is designed specifically to maintain safe water temperatures, preventing scalding or thermal shock for users of fixtures like bidets. In a bidet setup, water is supplied at varying temperatures, and without proper regulation, there is a risk of the water becoming too hot for users. The temperature regulator works by blending hot and cold water to a constant, safe temperature that can accommodate personal comfort without exceeding safety limits.

This fitting is crucial in ensuring that when users adjust the water temperature, it does not exceed a safe threshold, effectively mitigating any potential harm. In contrast, a flow restrictor, while it limits the amount of water flow, does not address temperature regulation. A pressure equalizer focuses on maintaining balanced water pressure in the system, which is also unrelated to temperature modulation. A backflow preventer is essential for preventing contamination of potable water but does not manage the temperature of the water being supplied. Thus, the installation of a temperature regulator is vital for safety and comfort in bidet usage.