The relief valve coded K 27700 serves a critical safety function in the ZV40/48 diesel engine by regulating excessive pressure within the system. It automatically opens when pressure exceeds the preset limit, protecting sensitive components from potential damage. Engineered for durability and precision, the valve ensures smooth operation under high-pressure conditions while maintaining system stability. This component is essential for preserving the safety, performance, and longevity of both marine and industrial diesel engine installations.