Butterfly valves

Neles™ butterfly valves are designed to truly optimize the efficiency of process operations by offering best-in-class valve capacity. They provide long-lasting tightness and industry-leading valve reliability, certified to SIL 3. Our product range includes both metal and soft-seated and rubber-lined butterfly valves.

Butterfly valves for all applications

A butterfly valve is a rotary valve (quarter turn valve) using a disc as the closure member. Butterfly valves can be either symmetric or eccentric (=offset), the latter referring to the stem being displaced from the center of the disc. Neles and Jamesbury butterfly valve offering covers concentric, double eccentric and triple eccentric designs. Thus, Jamesbury and Neles butterfly valves are a superb choice for most applications.

Neles and Jamesbury butterfly valves are available with wafer style (no flanges), lugged (single flange) and double-flanged body types. This along with comparably short face-to-face dimension makes them versatile and cost-efficient solutions for a variety of on/off and control applications. Extreme tightness performance makes the butterfly valves optimal for tight shut-off on/off applications and their inherent modified equal percentage flow characteristic makes them an excellent solution for a control valve.

Read more about butterfly valves and success stories

What’s driving sustainable development in valve technologies?

When we look at valves from the sustainability point of view, three key aspects stand out clearly in the forefront: Emissions, internal tightness and a lifecycle view. In all three cases industry standards and regulations play an important role in driving development and ensuring the environmental performance of industrial processes.

One butterfly valve, many uses

Did you know we have nearly a century of combined experience with Neldisc™ metal-seated and Wafer-Sphere™ soft-seated butterfly valves? Today we talked with Petri Ilonen, Product Manager for butterfly valves, about the new modular butterfly valve platform that Neles recently introduced. Watch the video interview below to learn more.

A new generation packed with performance

As always, the latest generation of Neldisc™ metal-seated and Wafer-Sphere™ soft-seated butterfly valves is built to perform. The modular valve platform leans on field-proven technologies and decades of experience and expertise to meet the challenges of modern industrial processes.

Reliable performance with unique metal seat technology

When we talk about long-lasting performance in regards to our modular butterfly valves, we are talking about long term reliability and a valves ability to maintain the same high-quality performance across its entire operational life cycle.

Safer butterfly valves are made in safe environments

We believe that safe products can only be made in safe working environments. Just as we design our valves to be safe for you to install, service and operate, we pay careful attention to the safety of our own production processes.

The butterfly valve for any given situation

As the needs and requirements of modern process industries continue to change and become ever stricter, the role of safe and efficient valve solutions keep growing. The sustainable butterfly valve platform by Neles, which includes the metal-seated Neldisc™ and soft-seated Wafer-Sphere™ valves, have been designed and developed over time to address today’s needs and challenges.

The best of both worlds - 45 years of butterfly valve expertise

Bringing together 45 years of butterfly valve expertise from two sides of the Atlantic Ocean

Still setting the standard for soft-seated butterfly valves

While the demands for industrial soft-seated butterfly valves continue to evolve, new features and innovations are needed. At the same time, the fundamental design of the Jamesbury™ Wafer-Sphere™ butterfly valve continues to prove itself in action in many of the most demanding applications. The patented and often imitated double-offset design originated by Neles continues to be the industry benchmark for performance excellence.

Efficient range of butterfly valves

Compact means efficient

Our butterfly valves are designed to be as compact and lightweight as possible. This creates savings on both raw material consumption and energy needed for transport, which lowers the manufacturing and logistics chain's environmental impact and carbon footprint. The optimized weight and dimensions also make for easier and safer installation, replacement and maintenance.

Highest Cv on the butterfly valve market

Our Neldisc and Wafer-Sphere valves come equipped with the highest Cv on the butterfly valve market. With significantly lower pressure losses comes the lower need for pumping energy. This spells out energy savings that make your process more environmentally friendly and more profitable. The high Cv can also mean sizing down on your valves and thus also your actuators.

Lower torque need

Our high-quality butterfly valves also have a lower torque need, which in cases may allow you to select and install a smaller actuator as a part of your valve assembly. This helps improve process sustainability and deliver capital savings. It allows you to reduce everything from weight and the need for additional piping support, to process vibrations and process air consumption. Again, this means lower energy consumption.