Ramén Valves launches Ramén EDS, a technical innovation and a new alternative to ceramic valves

Ramén Valves, a leading manufacturer of industrial valves for the process industry, today announced the launch of Ramén EDS (Extreme Duty Service), an advanced surface technology developed for extreme duty applications. By combining multiple surface hardening technologies, Ramén EDS delivers a durable, cost-effective alternative to ceramic valve solutions, delivering proven long service life in the most demanding environments.

Proven results in alumina processing

Ramén EDS was developed in direct response to operational challenges at an alumina plant handling highly abrasive, non-Newtonian slurry with 37–45% solids, including caustic soda and residual bauxite. The process environment caused severe wear in conventional valve solutions, resulting in frequent maintenance and short operational lifetimes.

Following extensive field testing over the past two years, Ramén EDS has delivered remarkable results. Valve lifetime increased from approximately one month to more than twelve months, with the valve still in operation to this date.

“This is exactly the type of application Ramén EDS was developed for,” says Stéphane Blanchet, Sales & Marketing Manager at Ramén Valves. “Customers operating in highly abrasive environments need solutions that deliver reliability, durability, and cost-efficiency without the limitations that often come with ceramic valves.”

A combination of advanced surface hardening technologies

Ramén EDS is based on a combination of advanced surface hardening technologies, such as SuperExpanite® and PVD coatings, to achieve exceptional wear resistance.

• SuperExpanite® increases the hardness and wear resistance of stainless steel while maintaining its corrosion resistance.
• PVD (Physical Vapor Deposition) coatings add an ultra-hard, low-friction ceramic layer that improves abrasion and erosion resistance.

Together, these technologies enable Ramén EDS to deliver surface hardness levels of up to HV 5000, significantly exceeding many conventional solutions, including ceramic coatings which typically reach around HV 2000.

“The industry has traditionally relied on ceramic valves to handle wear and abrasion, but they come with challenges such as brittleness, long lead times, and high lifecycle costs,” says Per Wennersten, CEO of Ramén Valves. “Ramén EDS changes that by delivering exceptional wear resistance in a solution that is more flexible, easier to service, and more cost-efficient.”

Built for extreme duty service

Ramén EDS is particularly well‑suited for demanding applications involving abrasive slurries, fibers, and aggressive media across industries such as mining, mineral processing, alumina refining and chemical processing. With Ramén EDS, Ramén Valves expands its offering for demanding process environments.

About Ramén Valves

Ramén Valves is a leading manufacturer of industrial valves for the process industry, including pulp and paper, power generation, mining, and chemical processing. With a strong focus on innovation, quality and sustainability, Ramén Valves supports customers worldwide with reliable valve solutions designed for demanding process environments. For more information, please visit www.ramenvalves.com

Contact

Management: Per Wennersten, CEO [email protected]
Sales: Stéphane Blanchet, Sales & Marketing Manager, [email protected]
Marketing: Lina Pasi, Marketing Coordinator, [email protected]