Neles™ R- series segmented ball valve for on-off applications

High capacity and proven performance of Neles on-off valve seating technology

New Neles segmented ball valve for on-off applications combines the material efficient control valve design with the high capacity and proven performance of Neles on-off valve seating technology. Standard units are equipped with cylinder or manual actuators and intelligent on-off valve controllers to ensure excellent and reliable isolating performance

Excellent performance for high capacity isolating applications

Light weight - easy to handle and mount

Optimal choice for harsh environments

Excellent reliability with low maintenance cost


Specially designed and tested reliable on-off seat

  • Metal seated construction developed with years of experience
  • Ball to seat contact with materials and coatings maximizing the lifetime
  • Suitable also for fibrous flow medias
  • ISO 5208 RATE D tightness by standard metal seated construction
  • Soft seated constructions available for applications requiring extreme tightness

High operational efficiency

  • High capacity with V-port on-off design
  • Low friction on ball-seat connection enables selection of smaller actuators
  • Material efficient valve body construction to assure competetiviness

Materials specially developed for harsh environments

  • Corrosion resistance with special materials CG8M, Titanium, Hastelloy C 254 SMO, Super Duplex
  • Metal and soft seated constructions
  • Ceramic coatings available for metal seated valves for corrosive environments

Safety and environment

  • Rotary operation minimizes fugitive emissions.
  • Fire-safe design available with metals seats and graphite packing.


  • Pulp & paper
  • Petrochemicals
  • Refining
  • Chemicals


Body construction Flanged, flangeless
Body pressure rating PN 10 - 40 / ASME Class 150 - 300
Face to face According to IEC 60534-3-2 / ISA 75.08.02 or IEC 60534-3-1
Size range DN 100 - 800 / 4" - 32"
Temperature range -50 ... +425 °C / -58 ...+797 °F
Tightness ISO 5208 Rate D with metal seat. Rate C with soft seat.