Check Valves Butt Fusion PVDF

Georg Fischer SYGEF PVDF butt fusion check valves prevent backflow in high-purity and aggressive chemical process lines. Manufactured from high-grade polyvinylidene fluoride, these non-return valves feature spigot ends compatible with conventional butt fusion and infrared (IR Plus) welding per DVS 2207 standards.

Technical characteristics

Engineered for demanding industrial environments, the Type 561 and Type 562 check valves provide dependable non-return functionality and tight sealing under fluctuating operating conditions.

• Operating temperature range: -20 °C to +140 °C
• Nominal pressure rating: PN16 (SDR 21)
• Available dimensions: d20 to d110 (DN15 to DN100)
• Joining methods: IR Plus non-contact infrared fusion and butt fusion
• High resistance to concentrated acids, halogens, and high-purity water media