VakuStop vacuum regulator for dosing systems is equipped with an emergency-stop function to prevent uncontrolled chlorine gas leaks directly at the chlorine gas tank. It’s based on the C2213/14 vacuum regulator that was upgraded by adding an automatic safety valve. The system is
VakuStop is designed as a compact device that can be fitted to the valve of a chlorine gas tank in a few simple steps. It can also be connected to a gas warning device or a Plus safety blow-off valve. In normal operation, the vacuum regulator enables controlled dosing of up to 10 kg of chlorine gas (CI2) per hour into the piping system if there’s a sufficient vacuum in the dosing line.
If the negative pressure drops, for example due to a leak, the chlorine supply is automatically interrupted. If chlorine gas escapes due to a defect in the dosing system, VakStop’s electric safety valve of the closes immediately, preventing any further escape of gas. This emergency-off function is also triggered in the event of a chlorine alarm, a cable break, if overpressure is detected, or if a pushbutton is actuated. In these cases, a stop lever clearly protrudes from the housing as an indicator to signal the interruption. The valve only opens again when a user operates the lever manually after eliminating the cause of the fault.
VakuStop is offered as part of a comprehensive safety system to increase the safety of larger chlorine gas systems. Its centerpiece is a control unit that connects to a gas warning device and up to 12 VakuStops. In the event of a chlorine alarm, the control unit can close all 12 safety valves simultaneously—even during a power failure. The control unit is available with an optional integrated uninterrupted power supply (UPS).
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