Products Our motto "Technology for Environmental Protection" has long been an inherent part of our product development philosophy and product range. We strive to improve the environment, to make processes which work with greater environmental compatibility and to avoid putting a strain on the environment. We offer you a multitude of innovative solutions, new products and smart concepts. More Informations Industries & Topics Industries & Topics Overview Fuel oil components Fuel oil components Overview Fast and clean oil filter change Avoiding fungal attacks in biofuel More performance with the sintered plastic sieve AFRISO Smart Home AFRISO Smart Home Overview Gateway HG 02 Products Products Overview AFRISOhome App Alexa Smart home applications Smart home applications Overview Leakage security Security Stand-alone applications Stand-alone applications Overview Getting started with AFRIShome Smart Home Craft 4.0 Craft 4.0 Overview OEM-Manifold systems Hydraulic Balancing Hydraulic Balancing Overview VarioQ Vario-DP Tank conversion Hygienic processes AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search Domestic technology Water technology 68416 Warmwasserzirkulationssystem WZS 75 Images 1 Back WZS 75 | 68416 hot water circulation system in-stock items Documents Benefits compact hydraulic assembly for storage tanks with existing safety-related equipmenteasy connection of a circulation line with existing safety-related equipmentthermally controlled hot water temperature (with scald protection)considerable time savings during mounting Application Circulation system for professional implementation of a service water circulation connection to an energy storage tank with existing safety-related equipment (hot water tank/stratified storage tank) which is operated at temperatures higher than 60 °C either permanently or temporarily. WZS 75 is ideal for retrofitting existing systems, primarily in single-family and two-family homes. Description Compact, pre-assembled and tightness-tested hot water circulation system, consisting of thermal mixing valve with integrated scald protection, thermometer, shut-off valve, drain valve for venting or flushing the circulation line as well as connection parts as per DIN 1988. The hydraulic assembly is suitable for storage systems which are already fitted with with safety-related equipment such a diaphragm safety vales backflow preventers or where such equipment is to be installed in the form of conventional individual components. Storage systems without safety-related equipment can be retrofitted with the safety group assembly WSG 150.WZS 75 optimises temperature control in the hot water circulation and ensures that the temperature in the storage system is not unnecessarily reduced. A partial volume of the returning circulation water flows directly to the cold water inlet of the thermal mixing valve via an internal connection. Depending on the water temperature at the inlet of the mixing valve, it is then controlled as required. Technical data Downloads Technical data system connectionsG¾ female thread, G1 female threadOperating temperature rangeMedium: max. 95 °CMixing temperature35/60 °CSystem pressuremax. 10 barFlow coefficient Kvs1.6 m³/hHousingBrassDimensionsW x H x D: 297 x 188 x 116 mmcirculation pumpWilo-Star-Z NOVADegree of protectionIP 42 (EN 60529)Supply voltageAC 230 V, 50 HzPower input 2 − 4.5 WScope of deliveryassembly without insulation Downloads Warmwasserzirkulationssystem WZS 100 Manuals PDF Download Related products
AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search
Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search
Images 1 Back WZS 75 | 68416 hot water circulation system in-stock items Documents Benefits compact hydraulic assembly for storage tanks with existing safety-related equipmenteasy connection of a circulation line with existing safety-related equipmentthermally controlled hot water temperature (with scald protection)considerable time savings during mounting Application Circulation system for professional implementation of a service water circulation connection to an energy storage tank with existing safety-related equipment (hot water tank/stratified storage tank) which is operated at temperatures higher than 60 °C either permanently or temporarily. WZS 75 is ideal for retrofitting existing systems, primarily in single-family and two-family homes. Description Compact, pre-assembled and tightness-tested hot water circulation system, consisting of thermal mixing valve with integrated scald protection, thermometer, shut-off valve, drain valve for venting or flushing the circulation line as well as connection parts as per DIN 1988. The hydraulic assembly is suitable for storage systems which are already fitted with with safety-related equipment such a diaphragm safety vales backflow preventers or where such equipment is to be installed in the form of conventional individual components. Storage systems without safety-related equipment can be retrofitted with the safety group assembly WSG 150.WZS 75 optimises temperature control in the hot water circulation and ensures that the temperature in the storage system is not unnecessarily reduced. A partial volume of the returning circulation water flows directly to the cold water inlet of the thermal mixing valve via an internal connection. Depending on the water temperature at the inlet of the mixing valve, it is then controlled as required. Technical data Downloads Technical data system connectionsG¾ female thread, G1 female threadOperating temperature rangeMedium: max. 95 °CMixing temperature35/60 °CSystem pressuremax. 10 barFlow coefficient Kvs1.6 m³/hHousingBrassDimensionsW x H x D: 297 x 188 x 116 mmcirculation pumpWilo-Star-Z NOVADegree of protectionIP 42 (EN 60529)Supply voltageAC 230 V, 50 HzPower input 2 − 4.5 WScope of deliveryassembly without insulation Downloads Warmwasserzirkulationssystem WZS 100 Manuals PDF Download