Des-Case
Contamination control, filtration and oil condition monitoring
Des-Case at Vydraulics
Koppen & Lethem, part of the Vydraulics Group, has supplied RMF Systems filtration solutions in the UK for many years. Since 1 April 2026, Koppen & Lethem has also been the exclusive UK distributor of Des-Case, bringing both product ranges together under one trusted supplier.
Combining extensive hydraulic expertise with in-depth product knowledge, our specialists help customers improve fluid cleanliness, protect critical equipment and select the right contamination control solutions for their applications.
Main product groups
Desiccant breathers
Des-Case and RMF Systems desiccant breathers protect hydraulic reservoirs, gearboxes and other equipment against airborne moisture and particles. By filtering incoming air, they help prevent contamination and maintain fluid quality. The range includes disposable and serviceable models for industrial and mobile applications.
Offline filtration systems
Offline filtration systems continuously remove particles and moisture from hydraulic and lubricating oils, independently of the main hydraulic circuit. These systems help maintain fluid cleanliness, reduce component wear and extend oil service life. The range includes portable and permanently installed filtration units, including RMF Systems solutions.
Vacuum dehydration units
Vacuum dehydration systems remove free, emulsified and dissolved water, as well as gases and particles, from hydraulic and lubricating oils. They are particularly suitable for applications where moisture contamination presents a risk to equipment reliability and performance.
Need help choosing the right Des-Case solution?
Our hydraulic specialists at Vydraulics, including Koppen & Lethem in the UK, can help you select the right Des-Case and RMF Systems products for your application and provide technical advice, support and quotations tailored to your requirements.