PVDF Ball valve type 546 Pro PPA FC

  Datasheet (PDF)

The Georg Fischer SYGEF Standard PVDF type 546 Pro ball valve with PPA pneumatic actuator operates as a fail-safe-to-close (FC) automated flow control unit engineered for high-purity chemical distribution and demanding industrial piping processes. Built around a robust polyvinylidene fluoride (PVDF) valve body paired with an unplasticized fluoropolymer ball seat made of PTFE and chemical-resistant FKM elastomeric seals, this assembly ensures exceptional operational reliability across a continuous service temperature span from -20 degrees to +140 degrees Celsius. Actuation is driven by a compact, corrosion-resistant pneumatic actuator constructed with a glass-fibre reinforced polypropylene (PP-GF) housing, providing a complete non-metallic outer solution that withstands harsh corrosive ambient plant environments. The pneumatic actuator executes high-speed quarter-turn cycling with a rapid control time of one to two seconds at an operating control pressure of 5.6 bar (81.2 psi), interfaced via an integrated NAMUR port adhering to VDI/VDE 3845 standards. Designed for effortless integration and maintenance, the valve incorporates serrated metric fixed flanges and integrated stainless steel threaded mounting inserts for secure structural fastening, while maintaining interface compatibility for union nuts, valve ends, and face-to-face dimensions with legacy type 546, 230, and 235 assemblies. An integrated visual position indicator provides continuous mechanical status monitoring, and the modular platform supports optional electronic positioners including RPC, RPC D, and RPC PID, as well as dual-sensor position feedback modules with LED indication compatible with PNP, NPN, and NAMUR control schemes. Manufactured in accordance with rigorous fluoropolymer standards, the unpigmented PVDF wetted fluid path delivers cleanroom-compatible cleanliness, physiological non-toxicity, and exceptional endurance in pure water and aggressive chemical piping systems.