Barrier® S UV systems are low pressure lamp based systems. With these units of medium and low pressure lamp based UV systems the Wallace & Tiernan® product range is completed. All components of the Barrier S System are of highest quality and optimized: the UV lamps, quartz sleeves, electronic lamp power supplies, sensors and finally the control unit. So the Barrier S system excels due to high life time. Due to optimized hydraulics a low headloss is realized. The electronic lamp power supplies and the optimized UV lamp positioning makes sure that a high disinfection efficiency is realized, this reflects in low energy consumption and low operation costs.