SAFETY SHUTOFF VALVE
Full-vacuum chlorinators are designed according to
the highest safety standard DIN19606. Even in the case
of a line rupture chlorine gas cannot escape, only ambient
air is sucked into the vacuum system.
If the vacuum regulator function is faulty a safety
blow-off valve is opened thus providing for a pressure
relief in the vacuum system.
This happens even at low-value overpressure and the
chlorine gas is lead directly to the gas detector.
However, should the unhappy case occur that both the
vacuum line and the inlet valve are defective, the safety
blow-off valve cannot react. As a result of the defective
vacuum line no overpressure can be built up. Thus uncontrolled
escape of chlorine gas occurs at another point.
By using the safety shutoff valve this case is avoided
so that the highest possible safety of the full-vacuum
chlorinators is guaranteed.
At the same time the safety shutoff valve prevents
water from entering into the vacuum regulator even if
the ejector non-return valve is untight.