Type: regulating ball valve
Operation: manual
– Ball valve with solvent welding code VKDIF
– Ball valve with butt welding code VKDBF
– Ball valve with flanges code VKDOF
Available diameters:
– DN10 – DN50 mm (nominal diameter)
– d16 – d63 mm (external diameter)
Sealing gasket: FPM
Aplications: used in different installations where high chemical resistance is required to different chemical agents


– Chemical industry
– The metal coating industry (chroming, etc.)
– Dosing systems in treatement of drnkable water
Range of working temperature: -40 – +140° C
Pressure: PN16

The VKR DUAL BLOCK® valve combines high reliability and safety aspects typical of VKD full bore ball valves with the new flow adjustment function with typical linear curve that meets the most stringent needs typical of industrial applications.

  • Connection system for socket welding, butt welding, threaded and flanged joints
  • Patented SEAT STOP® ball seat carrier system that lets you micro-adjust ball seats and minimise axial force effects
  • Easy radial disassembly allowing quick replacement of O-rings and ball seats without any need for tools
  • PN16 True Union valve body made for PVDF injection moulding equipped with built-in bores for actuation. ISO 9393 compliant test requisites
  • Option of disassembling downstream pipes with the valve in the closed position
  • High surface finish stem with double O-Ring and double groove ball connection
  • Integrated bracket for valve anchoring
  • Ball seat carrier can be adjusted using the Easytorque adjustment kit
  • Actuation option: version with electric modulating actuator with 4-20 mA / 0-10 V inlet and 4-20 mA / 0-10 V outlet to monitor the position
  • Valve suitable for carrying fluids that are clean and free of suspended particles

HIPVC ergonomic multifunctional handle with position indicator and tool to adjust the ball seat carrier
Flow direction indication plate and opening angle with graduated scale with 5° detail for clear and accurate readings
90° operating angle that permits the use of standard quarter turn actuators
The patented ball design provides linear flow adjustment throughout its range of operation even when the valve is open just a few degrees and guarantees minimum pressure drops
Patented DUAL BLOCK® system: prevents union nuts from loosening even under extreme operating conditions: e.g. vibration or thermal expansion