The fuel injection pipe, code P51404-18, is a high-pressure line that delivers fuel from the injection pump directly to the cylinder injectors in the MAN L21/31 engine. Engineered to withstand extreme pressure and thermal cycles, this pipe ensures consistent and precise fuel delivery, which is critical for achieving efficient combustion and optimal engine performance. Its robust construction and precision manufacturing minimize the risk of leaks and maintain injection timing, essential for meeting modern emission standards and fuel economy targets in marine and stationary power applications.
The threaded pin K 81192 is a precision-machined fastening element used to anchor and secure support K 81260 in the ZV40/48 engine’s mounting systems. Engineered for high tensile strength and resistance to vibration, this threaded pin maintains a stable connection even under demanding operational conditions. Its accurate threading ensures easy installation, secure engagement, and long-lasting structural integrity. Although small, K 81192 plays a critical role in keeping the support assembly firmly in place, contributing to reliable operation and reduced wear of engine components.
The clamping piece K 81261 is a robust fastening component designed to secure and stabilize support K 81260 within the structural assemblies of the ZV40/48 engine. Manufactured to endure heavy mechanical loads and constant vibration, this clamp ensures proper alignment and firm retention of the support structure, preventing unwanted movement or loosening during engine operation. Its durable construction and precise fit contribute to the long-term reliability of auxiliary mounts, enabling consistent performance of the equipment they carry and improving overall engine stability.
The sealing ring K 92030 is a precision–crafted gasket designed to provide a tight, leak-free barrier between the thermometers and their mounting points in the Sulzer/Adriadiesel/Jugoturbina/Zgoda ZV40/48 diesel engine. Built to withstand continuous thermal cycles, pressure variations, and strong engine vibrations, this sealing ring ensures accurate temperature measurement by preventing coolant, oil, or compressed air from escaping around the sensors. By preserving the integrity of the thermometer interfaces and protecting them from wear and corrosion, K 92030 contributes directly to reliable engine monitoring and long-term operational stability.
The main stop valve, code P51315-03, serves as a vital safety and control element in the fuel or air supply system of the MAN L21/31 engine. Designed to quickly isolate flow in emergency or shutdown conditions, it helps protect the engine and surrounding systems from damage or uncontrolled operation. Its robust design and fast-acting functionality ensure operational integrity, making it indispensable for secure and compliant engine operation in marine and power plant environments.
The turning gear, code P51325-12, is an essential maintenance and safety device in the MAN L21/31 engine, allowing for controlled rotation of the crankshaft when the engine is not running. This feature is critical during inspections, servicing, or startup procedures, ensuring precise positioning of engine components. With its secure mechanical engagement and reliable motorized drive, the turning gear enhances safety, aids in alignment tasks, and supports effective maintenance planning.