Lutz-Jesco will present its SAFETYCHLORMIX mobile emergency chlorination system for waterworks at the Tausendwasser 2025 trade fair in Berlin

Wertheim, 10 February 2025 – what happens when disinfection systems installed in waterworks reach their limits? Lutz-Jesco has developed the Safety Mix mobile emergency chlorination system for just these emergencies. The system can be viewed at the Tausendwasser 2025 water management trade fair in Berlin (stand 7.BP.29) from 26 to 27 March. Lutz-Jesco will also be presenting its new VakuStop safety shut-off valve, which makes handling hazardous chlorine gas safer.

If the bacterial count in drinking water rises – for example due to impurities due to heavy rainfall that has washed soil into a spring catchment chamber – waterworks must react quickly to avert a health hazard for thousands of households. The situation becomes critical if, for example, bacteria develop in an intermediate storage tank, and the permanently installed local disinfection systems are unable to cope. “We have developed SAFETYCHLORMIX for just such cases," says Cristian Meyer, expert in drinking water technology at Lutz-Jesco. “This mobile dosing system enables waterworks to act quickly and effectively to bring bacterial development under control through the precise dosing of liquid chlorine.” The emergency chlorination system has already been purchased by several municipal utilities in large cities such as Schwerin (Germany). The solution is not only deployed in waterworks but also in response to other special challenges relating to the safety of drinking water – such as Legionella contamination in the water supply for a high-rise building. “There is currently no comparable system available on the market,” says Meyer.

A single person can easily pull the system to its place of use

Lutz-Jesco offers SAFETYCHLORMIX as a plug-and-play system mounted on a robust tubular steel trolley. This means that a single person can easily pull the system to wherever it is needed and start emergency chlorination immediately. At the heart of the system is the Magdos LDp diaphragm dosing pump, which injects a calcium hypochlorite solution into the contaminated water from a container via a ten-metre PVC hose. The chemical releases hypochlorous acid (HOCI), which kills microorganisms through oxidation. “The pump impresses with exceptional durability, reliability and ease of maintenance,” explains Meyer. “Its magnetic drive means that it does not need any wearing parts such as gears or shafts.”

SAFETYCHLORMIX enables chlorine production of up to 650 g/h

SAFETYCHLORMIX is available in different performance levels, which enable chlorine production from 18 to 650 g/h. The delivery rate varies between 0.5 l/h and 15 l/h. The chlorine granulate is available in two package sizes: 25 or 60 litres. For added safety, the system is equipped with a back-pressure valve that regulates the line pressure and a pressure-relief valve that prevents positive pressure. A polyethylene collecting pan provides additional protection by collecting any leaking liquids and thus preventing the uncontrolled escape of chemicals into the environment.

Also on show at Tausendwasser 2025: a new safety shut-off valve ensures safer handling of chlorine gas

Lutz-Jesco will also be presenting another innovation at Tausendwasser 2025. The new VakuStop is a safety shut-off valve combined with a vacuum regulator that enables waterworks to handle chlorine gas cylinders more safely. Users can fit the VakuStop to the valve of a gas cylinder in just a few simple steps and connect it to a gas warning device. An electromagnet then holds the valve open in the idle position, so that chlorine gas can flow. The power supply will be interrupted following a chlorine alarm, cable break, positive pressure detection or actuation of the pushbutton on the device, causing the valve to close suddenly and interrupt the gas supply.

Lutz-Jesco also offers a comprehensive safety system to increase the safety of larger chlorine gas systems. The centrepiece is a control unit that connects a gas warning device with up to twelve safety shutoff valves. The control unit can close all valves simultaneously in the event of a chlorine alarm. "VakuStop and our safety system support waterworks in their efforts to continuously optimize the safe handling of chlorine gas and thereby minimize the possible risks,” says Meyer. These types of safety systems are important because handling the chemical poses considerable health risks – ranging from irritation of the eyes to fatal pulmonary oedema.

About Lutz Holding GmbH

Lutz Holding GmbH has stood for professional fluid management since 1954. The group of companies unites internationally active companies in pump technology as well as water treatment and disinfection and is represented by 13 subsidiaries and agencies in over 80 countries worldwide. The group includes Lutz Pumpen GmbH in Wertheim, Lutz-Jesco GmbH in Wedemark and Lutz-Jesco Suisse SA in Couvet, Switzerland. The portfolio includes pumps, systems and accessories for dosing, pumping, emptying and mixing processes for a wide range of fluids. Lutz Group products are used in numerous sectors, including the chemical industry, food industry, automotive production, water and waste water treatment and the paint and coatings industry.