Q4440 6.99mm Section 170.82mm Bore Quad Section FKM 70 Rubber X-Rings

FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less compression to maintain an effective seal. This reduced compression results in less friction, longer seal life and a lower risk of twisting. Quad Rings have an advantage over standard O-rings as the parting lines are between the lobes, away from the sealing surface. This eliminates the problems of leakage that often results from a parting line’s irregular surface as found on an O-Ring. In these cases, X rings provide a better, more uniform seal. Quad Rings are designed to outperform a standard O-Ring in rotary seal applications. The four-lobed configuration creates a more stable seal avoiding spiral twisting. This allows for a narrower groove width than a standard O-Ring groove. However, it can also be used in a standard O-Ring groove. FKM rubber has a particularly wide operating temperature range ranging from – 25 deg Celsius up to + 200 Deg C (higher for short periods) and a high degree of chemical resistance. It is highly suitable for use in engines and other areas where extremes of temperature and chemical exposure are present. FKM Rubber (FPM), 70 Shore hardness. Benefits: Excellent sealing properties and durability, wide temp range, high resistance to many chemicals and petroleum-based fuels including petrol , diesel , LPG