In hydraulic systems where fluid chemistry and temperature spikes are constant variables, material selection is paramount. While NBR is adequate for standard low-temperature applications, our DWI seals utilize high-grade FKM. FKM offers superior cross-linking density, providing exceptional resistance to synthetic hydraulic fluids, mineral oils, and aggressive additives that often degrade standard elastomers. This material ensures that the seal maintains its structural integrity and “spring-back” capabilities across a wide operating range, effectively mitigating the risk of seal hardening or swelling that leads to premature failure.

Achieving maximum seal life requires meticulous attention to the installation environment. The CFKS DWI seal is designed for interference fit, ensuring a static seal on the outer diameter and a dynamic seal on the inner lip. During installation, it is imperative to use a uniform press tool to prevent damage to the elastomeric lip profile or the metal casing. Because of the FKM material’s high abrasion resistance, these seals are well-suited for systems with minor shaft eccentricity. To ensure longevity, always verify that the shaft surface finish is smooth and free of axial scratches, which could otherwise create bypass paths for the pressurized medium.