AIR SUPPLY VALVE
AIR SUPPLY VALVE and Valves for diesel and marine engines
Valves are precision components that control gas flow, pressure, and timing inside combustion engines. In the cylinder head, they govern the exchange of fresh charge and exhaust gases; around the engine, they manage auxiliary systems such as starting air, charge air, and safety relief. For purchasers and technical decision-makers, the Valves category covers intake and exhaust valves, the AIR SUPPLY VALVE for starting systems, as well as related seats, guides, springs, and actuation hardware. These parts are critical for power, fuel economy, emissions, and safe engine operation in demanding duty cycles.
Across a diesel engine or gas engine, engineered valves translate design tolerances into real-world performance: tight sealing preserves compression, optimized flow reduces pumping losses, and robust materials withstand high temperature and corrosive exhaust environments. In marine applications, the AIR SUPPLY VALVE is equally vital—admitting high-pressure air to start large-bore units reliably and preventing backflow to protect the air manifold and crew.
Technical function of Valves and the AIR SUPPLY VALVE in a diesel engine
Within the cylinder head, intake and exhaust valves open and close in a precisely timed sequence driven by camshafts, rockers, or hydraulic actuators. When seated, the valve face mates with a hardened seat to seal the combustion chamber; when lifted, the valve curtain area and port geometry govern volumetric efficiency and scavenging. Stem-to-guide clearances control lubrication, heat transfer, and alignment, while spring force ensures rapid seating at high RPM to avoid valve float. Metallurgy is application-specific: intake valves often use martensitic steels for strength, while exhaust valves rely on austenitic or nickel-based alloys with Stellite hardfacing to resist hot corrosion and erosion.
The AIR SUPPLY VALVE in a marine engine has a different but complementary role. Connected to the starting air system, it admits compressed air into the cylinder at a defined crank angle to initiate rotation and firing. A non-return arrangement and tight sealing prevent combustion gases from propagating into the air manifold. In a diesel engine, this AIR SUPPLY VALVE enables safe, repeatable starts after port calls, blackouts, or maintenance, especially on large two-stroke and medium-speed four-stroke units. Specified flow capacity, fast closing dynamics, and correct seating forces are essential for both efficiency and safety.
- · Tight sealing preserves compression and reduces blow-by.
- · Optimized flow areas improve power and fuel efficiency.
- · Heat- and corrosion-resistant alloys extend service life.
- · Accurate stem/guide fit keeps alignment and oil control.
- · Surface treatments (nitriding, hardfacing) reduce wear.
- · Reliable actuation ensures timing at rated load and speed.
- · AIR SUPPLY VALVE safeguards starting performance and safety.
- · Engineered for diesel engine and gas engine duty profiles.
Importance for engine operation and lifecycle
Valve condition directly determines reliability, output, and emissions. Seat recession or face burning reduces compression and raises exhaust temperatures, accelerating turbocharger and exhaust-side degradation. Excessive stem wear increases oil consumption and fouling. Weak springs or incorrect lash cause loss of timing stability, misfire, or piston-to-valve contact in extreme cases. For gas engines, leakage raises knock risk and component thermal load.
On the starting system, an out-of-tolerance AIR SUPPLY VALVE can lead to slow starts, failed starts, or, more critically, hot gas blowback into the air manifold. That creates a safety hazard, strains compressors, and can trigger costly unplanned shutdowns. Regular inspection, correct materials, and precise seating geometry are therefore essential to keep engines in class compliance and maintain predictable overhaul intervals.
OEM spare parts suitable for Valves and AIR SUPPLY VALVE: performance, reliability, and budget
Selecting OEM spare parts suitable for the Valves category is a strategic decision that impacts total cost of ownership. These parts are built to the engine maker’s dimensional stack-up and material specifications, ensuring drop-in compatibility with seat angles, stem diameters, keepers, spring rates, and actuator interfaces. For an AIR SUPPLY VALVE, OEM parts mean correct flow coefficients, non-return function, and tested sealing performance under pressure and temperature cycling.
Material integrity underpins service life: heat-resistant steels, Stellite or similar hardfacings, controlled hardness profiles across the stem and tip, and surface finishes that minimize wear in boundary-lubrication regimes. Consistent test procedures and traceability reduce variability, enabling longer maintenance windows and stable emissions. The result is measurable: better compression, stable cylinder pressure balance, lower fuel and lube oil consumption, reduced risk of unplanned dry-docking, and predictable spares budgets.
OEM parts advantages for an AIR SUPPLY VALVE in a marine engine
When you specify AIR SUPPLY VALVE OEM parts, you secure accurate opening dynamics, proven sealing elements, and corrosion-resistant internals suited to humid, saline environments. That reliability translates into safe starting, protected manifolds, compliant safety procedures, and efficient turnaround in port. For fleet operators, consistent performance across sister vessels simplifies inventory and crew training.
MOPA as your partner for OEM spare parts Valves
MOPA is an experienced and reliable partner for OEM spare parts Valves. We support shipowners, power plants, and service companies with a focused portfolio that covers intake and exhaust valves, complete AIR SUPPLY VALVE assemblies, seats, guides, springs, and related components for diesel and gas engines. Our strength lies in speed, quality, and security: rapid sourcing, careful technical verification, and logistics you can count on for time-critical dockings or outages.
With MOPA, you gain a knowledgeable team that understands cylinder head rebuilds, starting air system best practices, and the documentation requirements of class societies. We help you match part numbers, validate component revisions, and align deliveries with maintenance windows—minimizing downtime while protecting engine performance.
Conclusion: Valves and AIR SUPPLY VALVE
Valves—including the AIR SUPPLY VALVE—are core to engine performance, efficiency, and safety. Their precision, materials, and sealing quality determine output and reliability across diesel and marine applications. By choosing OEM spare parts suitable for Valves, you secure consistent performance, longer service life, and better budget control throughout the engine lifecycle.
AIR SUPPLY VALVE with the comparison number 82000301286 suitable for MAN D engines
AIR SUPPLY VALVE with the comparison number 0000749584 suitable for MTU engines
Air Supply Valve: Your Reliable Replacement PartDiscover the Air supply valve with the comparison number 1457413010, an essential component for every engine enthusiast. This product comes from the group of Valves and ensures flawless performance. Weighing only 0.05 kg, it is a lightweight yet highly effective OEM replacement part that contributes to the smooth operation of your machines.Compatibility: Suitable for Deutz EnginesOur Air supply valve is suitable for Deutz engines and impresses with top-notch craftsmanship. This OEM replacement part meets the stringent quality standards you expect from such products. With the comparison number 1457413010, you can be confident in the correct fit and functionality.
AIR SUPPLY VALVE with the comparison number 51111070023 suitable for MAN D engines
High-Performance Air Supply Valve for ApplicationsDiscover our air supply valve, which is designated with the comparison number 1457413017. This product is essential to ensure efficient engine performance. It supports engines robustly and continuously to create optimal operating conditions.Optimal Fit for MWM & Deutz EnginesThis air supply valve is precisely designed for MWM & Deutz engines. Through the high quality of our OEM spare parts, we ensure that your engine operates smoothly. The use of modern technology is assured through the implementation of precise production data in manufacturing, which ultimately leads to greater reliability.
AIR SUPPLY VALVE with the comparison number 85100002491 suitable for MAN D engines
Air supply valve for MWM & Deutz EnginesDiscover our air supply valve, which is suitable for MWM & Deutz engines (part number 12172125). This essential replacement part plays a crucial role in regulating engine operation and contributes to the efficiency of your systems. Weighing only 0.32 kg and with compact dimensions of 7 cm in length, 7 cm in width, and 3.5 cm in height, the product is ideal for use in various engine applications.Quality and Reliability through Replacement PartsThe part number 12172125 stands for a replacement part that impresses with excellent fit and durability. This air supply valve has been carefully designed to provide optimal performance. Rely on the quality of our products when it comes to maintaining your engines and ensuring flawless operation.
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Air Supply Valve: Ensure Optimal Engine Performance Ensure the functionality of your engines with our air supply valve, identifiable by the comparison number 1417413000. This OEM spare part plays a crucial role in the efficiency of your engines. Weighing only 0.045 kg, it is compact yet robust enough to meet the high demands in the marine and stationary sectors.Suitable for MTU Engines: Excellent Compatibility This air supply valve is suitable for MTU engines and provides precise and long-term performance. It meets all requirements in the field of diesel and gas engines and ensures flawless functionality. Our OEM spare part is the perfect solution to keep your MTU engines in top condition and operate your facilities smoothly.
AIR SUPPLY VALVE with the comparison number 81521106031 suitable for MAN D engines
Air Supply Valve – Comparison Number 01288372Discover the air supply valve, which offers reliable functionality under the comparison number 01288372. This replacement part ensures high performance for your engines. The product is an essential component that enhances the efficiency of your machines, thereby ensuring smooth operations in your business.Suitable for Deutz Engines: Perfect FitThe air supply valve is suitable for Deutz engines and stands out with its excellent fit. It is an OEM replacement part manufactured by the producer. Unlike aftermarket solutions, here long-standing quality standards are maintained, ensuring optimal functionality. Rely on our technology and elevate your engine's efficiency to the highest levels.
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Air Supply Valve: Comparison Number 360107610026Discover the air supply valve with the comparison number 360107610026, an essential OEM replacement part from the category of valves. This product has been specifically designed to optimize the performance of your machines and ensure smooth operation. Our OEM replacement parts offer the quality expected for sustained use and impress with their reliability.Component Suitable for MWM & Deutz EnginesThe air supply valve is ideally designed and compatible with MWM & Deutz engines, particularly for the series 604. This addition maximizes the efficiency of the engines used in specialized applications such as the associated land and water environments. With the engine types TBD604-BL6 and TBD604-L6, you enhance the performance and availability of your equipment.
AIR SUPPLY VALVE with the comparison number 51125050005 suitable for MAN D engines
Air Supply Valve – Your Solution for Engine NeedsDiscover our Air Supply Valve, marked with the reference number 01320218. This product presents a brilliant solution when it comes to supplying suitable parts for Deutz engines. Its precise alignment with technical requirements offers unbeatable performance. Our OEM spare parts are a reliable choice for a variety of applications in marine and industrial fields.
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Air Supply Valve with Excellent PropertiesDiscover our exclusive Air Supply Valve with the comparison number 03476293, designed specifically for Deutz engines. This OEM replacement part is essential for any engine application where precision and reliability are required. With a weight of only 0.05 kg, this replacement part offers ideal properties for use in marine and stationary technology.
Individual Air Supply Valve: 115L77704/1The air supply valve with the reference number 115L77704/1 is an essential OEM spare part specifically designed to support performance and efficiency in engines. This product is ideal for maximizing the functionality and longevity of your MTU engines.
AIR SUPPLY VALVE with the comparison number N1011017525 suitable for MAN D engines
Air Supply Valve – Comparison Number 2417413088 Discover our air supply valve, which is marked with the comparison number 2417413088. This spare part impresses with top quality and precise manufacturing. Ideal for efficient operation of engines in marine and stationary applications, this component is indispensable for your needs.
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Air Supply Valve with Comparison Number 03353061Discover our remarkable air supply valve with the comparison number 03353061, specially designed for the highest demands of engines. This OEM replacement part belongs to the product group of valves and represents an ideal solution for engines. With a weight of only 0.28 kg, it is lightweight yet extremely durable—essential for use in marine and stationary applications.Efficient Solution for MWM & Deutz EnginesThe air supply valve ensures that the exchange of media in engines is not only efficient but also operates smoothly. This product is compatible with MWM & Deutz engines and specifically designed for the series 545. This way, you can utilize the full performance of your engine and enhance efficiency over a long period.
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