2.1. Thermostatic taps 2. Showers. The “Security 38º” system is a safety device Technology: Security 38º. included in Roca’s thermostatic taps (a red button) that prevents the water temperature from Action: Preventing excessive water temperature. exceeding 38º. Reaction: Water and energy saving. This prevents the water from becoming too hot, thus saving energy. 011 Security 38º Limits the temperature of the water you use to between 38º and 40ºC, preventing you from involuntarily exceeding these temperatures.* *Based on the following water sources: Cold at 15ºC/3 bar Hot at 65ºC/3 bar Security 38º