The increasing demand for logistic centers for fresh food and chilled goods necessitates the use of fire fighting systems with glycol filled piping. For these applications, we have added our latest Holzhauer glycol / water filling and pressure maintenance systems, which will be supplied as a complete system containing pressure maintenance pump, glycol storage and recovery tank, controller and pressure switch. A safety pressure relief device and the complete wiring of the pump unit are included as well as a thorough acceptance and function test in our test bay.