SAKES' oil filter relief valves are integral components of their high - quality oil filters. The relief valve is designed to protect the engine by ensuring a continuous supply of oil, even under adverse conditions. In normal operation, the oil filter traps contaminants, allowing clean oil to flow to the engine. However, if the filter becomes clogged or the oil viscosity is too high (such as in cold weather), the oil pressure can build up. The relief valve in SAKES' oil filters is engineered to open at a pre - determined pressure, bypassing the filter and allowing unfiltered oil to flow to the engine. This prevents excessive oil pressure, which could damage engine components, while still ensuring that the engine receives the lubrication it needs. SAKES' relief valves are made from durable materials that can withstand the high pressures and temperatures within the oil system. The brand designs these valves with precision to ensure consistent and reliable operation, providing an additional layer of protection for the engine and enhancing the overall reliability of the oil filtration system.