When using an evaporator in disinfection, the chlorine-pressure-reducing valve should be located _______

In the context of using an evaporator for disinfection, the correct placement of the chlorine-pressure-reducing valve is downstream of the evaporator. This positioning allows for proper regulation of the chlorine flow to the disinfection process while ensuring that the chlorine has already reached an optimal state for effective application.

Placing the valve downstream allows the disinfection system to maintain a consistent pressure and flow of chlorine, which is essential for achieving effective pathogen inactivation. If the valve were located upstream, it could potentially disrupt the flow dynamics and lead to fluctuations in chlorine delivery that could negatively affect disinfection efficiency.

Furthermore, positioning the valve downstream safeguards against any potential backpressure that might occur within the evaporator, which is important for maintaining the integrity of the system and ensuring that the chlorine is adequately mixed and delivered post-evaporation. This setup ultimately contributes to better operational control and the efficacy of the disinfection process.