How DES-CASE TDB Series desiccant breathers prevent hydraulic contamination is the focus of this episode — a deep dive into the fully serviceable TDB line from Des-Case®, covering ZR Gel desiccant technology, 3 micron hydraulic breather filtration, airflow sizing, check valve selection, and connection options for hydraulic reservoirs, gearboxes, and mobile fluid systems.

Every breath your hydraulic reservoir takes is a contamination event — unless you stop it first. The TDB Series pairs a 3 µm absolute (ß3 ≥ 200) glass fiber air filter with ZR Gel desiccant (3–6 mm granules) to block both particulate and moisture ingress simultaneously. A glass-filled nylon standpipe with integrated oil mist reducer keeps reservoir oil away from the desiccant bed, stretching service intervals and protecting your fluid inv ...