FK DN 40-300


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FK DN 40-300

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 also equipped with the customisable Labelling System.

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• Interchangeable Disk in PVC-U with through shaft, available in different thermoplastic materials: PP-H, PVC-C, ABS, PVDF
• Overall dimensions of the valve in accordance with standard ISO 5752 (DN 40÷200 Medium Series 25, DN 250÷ 300 Long Series 16) and DIN 3202 K2 and ISO 5752 (DN 65÷200 K2, DN 250÷300 K3)
• Can also be installed as an end line valve, bottom discharge valve or tank dump valve
• Special Lug version PN 10 fully drilled to DIN 2501 or ANSI B16.5 cl.150 with molded-in AISI 316 stainless steel threaded inserts
• Valve material compatibility (PVC-U) 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 PP-GR flanges. DN 40÷200 valve fitted with plate with rack in PP-GR. For actuated versions with flange drilled according to ISO 5211 F05, F07, F10. DN 250÷300 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 F10, F12, F14


  • Ergonomic handle in HIPVC equipped with locking and unlocking device, release, quick operation and graduated adjustment in 10 intermediate positions (DN 40÷200). The operating range, starting from the first few degrees of valve opening, also guarantees extremely low pressure drops

  • Customisable Labelling System: integrated module in the handle, made of a transparent protection plug customisable tag holder using the LSE set (available as accessory). The customisation lets you identify the valve on the system according to the specific needs

  • STAINLESS steel square section stem completely isolated form the fluid complying with standard ISO 5211:

           DN 40÷65: 11 mm
           DN 80÷100: 14 mm
           DN 125÷150: 17 mm
           DN 200: 22 mm
           DN 250÷300: 27 mm

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

  • Drilling pattern using oval slots that allow coupling to flanges according to numerous international standards. The special self-centring inserts in ABS supplied for DN 40÷200 guarantee the correct axial alignment of the valve during installation. For DN 250÷300 valves, the drilling pattern for the selfcentring system is of the traditional type according to DIN and ANSI standards

  • Interchangeable liner with the dual function of forming a hydraulic seal and isolating the body from the fluid

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