Safety shut-off valve
Total vacuum chlorinators in accordance with DIN 19606 are configured in accordance with high safety standards. Chlorine gas does not escape even following destruction of the dosing lines; only ambient air is sucked into the vacuum system. Should the vacuum regulator experience a fault, a safety blow-off valve effects pressure relief in the vacuum system. Opening upon even the lowest level of positive pressure, it draws the chlorine gas into the gas detector in a targeted fashion.
The coincidental and simultaneous incidence of a defective vacuum line and a leaking inlet valve means that the safety blow-off valve cannot be tripped, because the defective vacuum line prevents the build-up of positive pressure. The chlorine gas escapes at another location in an uncontrolled fashion. The safety shut-off valve prevents this from happening, ensuring the highest possible level of safety for the total vacuum chlorinator. The shutoff valve also prevents water penetration into the vacuum controller if the injector check valve is leaky.
DIN 19606 prescribes that the safety shut-off valve be installed in all installations in which the injector is not located in the chlorine gas room.
Features & Benefits
- Lock the vacuum line upon insufficient vacuum
- Protect the vacuum regulator against water from the injector