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
Features
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.
Applications
- Pulp & paper
- Petrochemicals
- Refining
- Chemicals
Specifications
| 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. |
