Lug-style butterfly valve type 146 EA 230V PVDF

  Datasheet (PDF)

The Georg Fischer SYGEF Standard Lug-style butterfly valve type 146 provides automated quarter-turn flow control and reliable isolation within demanding industrial piping systems and chemical distribution loops. Driven by an integrated compact electric actuator engineered for a supply voltage range of 100-230V at 50-60Hz, the assembly delivers precise 90 degrees rotary positioning for both open-close and throttling operations. To guarantee continuous operational safety in challenging environments with high ambient moisture or fluctuating temperature profiles, the electric drive is outfitted with an internal heating element that systematically eliminates internal condensation, alongside integrated position feedback sensors signaling open, closed, and middle positions. Engineered for harsh industrial environments, the valve body and disc are crafted from polyvinylidene fluoride (PVDF), offering outstanding chemical resistance to strong acids, solvents, and aggressive media, alongside a dependable service temperature envelope extending from -20 degrees C to 140 degrees C. The Lug-style casing design incorporates threaded stainless steel lug inserts that facilitate direct flange connection, enabling terminal end-of-line service where downstream pipe sections can be completely dismounted without requiring upstream drainage or depressurization. Inside the fluid path, the hydrodynamic PVDF disc works in unison with high-integrity sealing choices in FKM or PTFE, achieving optimal kv flow coefficients, low operational torque, and leak-tight shut-off. Actuator customization options include external bus interfaces like Profibus DP, digital position controllers, monitoring boards, and fail-safe battery return units. Every component undergoes rigorous quality control and bears permanent traceability embossing, satisfying the strict cleanliness and material purity expectations typical of pharmaceutical water distribution and high-end chemical processes.