FK DN350÷400
Butterfly valve


The FK is a butterfly valve for shutting off or regulating flow, with structural characteristics that make it ideal for industrial applications requiring high performance and long-term reliability.

This valve is characterized by high mechanical resistance performances and reliability guaranteed by the PP-GR body obtained through the injection molding production technology.





Interchangeable Disk in PVC-U with through shaft, available in different thermoplastic materials: PP-H, PVDF
• Valve material compatibility (PVC-U - EPDM) with water conveyance, drinking water and other food substances according to current regulations
• Possibility of installing a manual reducer or pneumatic and/or electric actuators by applying an ISO standard drilling flanges. Valve fitted with one-piece top flange in high mechanical strength PP-GR with mounting flange for internal components drilled according to standard ISO 5211 F14


  • Nominal pressure: up to PN 7 with water at 20°C

  • AISI 316 STAINLESS steel square section stem completely isolated form the fluid complying with standard ISO 5211:
    DN 350÷400: 27 mm

  • Body in polypropylene based compound reinforced with fibreglass (PP-GR) resistant to UV rays and characterised by high mechanical strength

  • Drilling pattern for the selfcentring system is of the traditional type according to DIN and ANSI standards

  • Interchangeable liner in EPDM or FPM with the dual function of hydraulic seal and isolating the body from the fluid