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.

Benefits

Minimized pressure loss and energy costs of the process

Industry best valve capacity

Consistent performance even in the most difficult, changing process conditions

Shortest possible maintenance hours

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

Versatile butterfly valves

The new generation of Neldisc™ metal-seated and Wafer-Sphere™ soft-seated butterfly valves is built to deliver sustainable performance today and tomorrow.

The next generation of butterfly valves

Neles™ Q-Disc™ flow balancing trim

New, patent pending Q-Disc design features extreme flow balancing for control service. Dynamic torque effect from the flow has been significantly reduced allowing high pressure drop service. Design also provides market leading noise reduction even up to 12 dB. Read more

Downloads

Related products

Next generation versatile butterfly valves

The new generation of Neldisc™ metal-seated and Wafer-Sphere™ soft-seated butterfly valves is built to deliver sustainable performance today and tomorrow. Our versatile product range includes both metal-seated butterfly valves and soft-seated butterfly valves.

Jamesbury butterfly valves

The combination of a unique off-center disc, proprietary seat design, Xtreme™ sealing technology, and other features make our Wafer-Sphere™ high-performance butterfly valve a tight-sealing, long-lasting, yet lighter and lower-cost alternative to gate valves and other heavier rotary-type designs.

Neles Easyflow™ resilient seated butterfly valves, series JA

Neles Easyflow JA series concentric disc resilient seated butterfly valves are suitable for a wide range of applications in manual or automated on/off through throttling control services. Although compact and lightweight, the JA series is designed to be rugged, reliable, and to comply with a variety of global industry standards.