Neles™ butterfly valve, series LW and LG
Neldisc™ high performance triple eccentric disc valves
Neles Neldisc series LW and LG triple eccentric disc valves operate both in control and shut-off applications, with close to equal percentage characteristics and superior tightness.
Features
- LW wafer type, LG lug type
- Triple offset
- Driveshaft with trunnion or through shaft (Model D only)
- Zero leakage with true metal-to-metal sealing
- One piece, full metal sealing without any resilient parts in the pipeline
- High, long-lasting tightness
- Unique, industry best disc valve control behavior with patented S-disc feature – possible to mount even on existing valve units
- Modular design minimizes the spare part inventory – the same spares can be used in multiple Neles Neldisc designs
- Minimized actuator torque. Smaller actuator and lower piping stress
- BAM certified construction for gaseous oxygen as an option
- In-built thermal and pressure compensation
- Extended rangeability to 90 degrees control applications
- Optimized spare part inventory
- Suitable to dirty and abrasive services
Applications
- Biotechnology
- Geothermal applications
- Pulp and paper
- Water and wastewater
- Refining
- Oil and gas
- Petrochemicals
- ESD service
- Industrial gas
- Power generation
- Food and beverages
Specifications
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Series | LW & LG (Model D) | LW & LG |
Design | Wafer or lug | Wafer or lug |
Size range | DN 80 - 300 / 3" - 12" (excluding DN 125/5") | DN 80 - 600 / 3" - 24" |
Pressure classes | ASME 150 - 300, PN 10 - 40 | ASME 150 - 300, PN 10 - 40 |
Temperature range | -50 °C … +600 °C / -46 °F…+1110 °F | -200 °C … +600 °C / -330 °F…+1110 °F |
