Ramén EDS, which stands for Extreme Duty Service, is Ramén Valves' most advanced surface hardening solution developed to extend valve lifetime in the harshest conditions. Ramén EDS delivers exceptional resistance to wear in applications involving slurries, fibers, and other aggressive media - while being far more cost-efficient than ceramic valves.
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Ramén EDS combines advanced surface hardening technologies such as SuperExpanite® and PVD coatings to reach extreme hardness levels. Far exceeding traditional coatings, it delivers superior resistance to wear in the toughest applications – making it one of the most durable surface treatments available, at a significantly lower cost and with higher availability than ceramic valves.
Ramén EDS combines exceptional wear resistance with the proven controllability of Ramén KS Ball Sector Valves. Designed for demanding applications, it delivers the key benefits of ceramic valve solutions while offering greater flexibility, availability and ease of maintenance.
By combining different surface hardening technologies, Ramén EDS achieves exceptional hardness levels of up to HV* 5000 – significantly higher than traditional solutions such as ceramic coatings, which typically reach up to HV 2000. This extreme hardness enables longer service life, reduced maintenance, and improved reliability even in the most demanding and abrasive applications.
*The Vickers hardness test is a method to measure the hardness of materials. The basic principle, as with all common measures of hardness, is to observe a material’s ability to resist plastic deformation from a standard source. The unit of hardness given by the test is known as the Vickers Pyramid Number (HV).
Discover the technology behind the exceptional hardness and wear resistance of Ramén EDS. By combining SuperExpanite® surface hardening with an advanced PVD coating, Ramén EDS achieves a surface hardness of up to 5,000 HV. Watch the video to see how the two technologies work together.
Ramén EDS is offered as an option for the Ramén KS Ball Sector Valve for highly abrasive applications. With EDS applied, the KS valve achieves exceptionally high wear resistance while retaining its proven design, versatility and control performance. This makes the EDS-treated KS a robust and cost-effective alternative to ceramic 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.” says Stéphane Blanchet, Sales & Marketing Manager at Ramén Valves. Ramén EDS delivers exceptional wear resistance in a solution that is more flexible, easier to service, and more cost-efficient.
In this video, we look at how Ramén EDS was put to the test in an extremely abrasive slurry application at an alumina processing plant. See how it helped extend valve service life from approximately one month to more than 16 months - and counting.
Selected customer cases showcasing the proven performance of Ramén EDS in aggressive environments.
Customer: Alumina Plant
Media: Non-Newtonian Mud, 37-45% Solids
In this alumina plant application, Ramén EDS is used to handle highly abrasive, non-Newtonian mud containing 37–45% solids, including caustic soda and residual bauxite. These harsh conditions typically cause severe wear and corrosion in conventional solutions. With Ramén EDS, valve lifetime was increased significantly from 1 month to 12 months.
Customer: Steel Plant
Customer: Mining Plant
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