Pneumatic diaphragm valves in PVC-U provide automated on/off and throttling control for aggressive, abrasive, or high-purity industrial fluid handling systems. Engineered with Georg Fischer DIASTAR and 604/605 pneumatic actuators, these valves isolate working components from the process medium to prevent contamination and corrosion. Suitable for chemical dosing, industrial water treatment, and processing loops, available in nominal pressure ratings PN6 to PN10 with EPDM, FKM, and PTFE diaphragm options.