Description
Product Overview
The valve plate is assembled inside the electromagnetic valve of the electronic fuel injector, serving as the core component for fuel diversion and flow regulation. It precisely distributes the high-pressure fuel flow through the precise oil holes on the surface, and cooperates with the valve core to adjust the pressure difference between the opening and closing of the injection. Under the long-term conditions of thousands of bar of high-pressure fuel erosion， impurities of diesel particles grinding， and continuous high-temperature vibration of the engine compartment， the inner wall of the oil holes will wear and enlarge the holes， and the sealing surface will develop scratches. This will result in inconsistent fuel injection volume for each cylinder， disorder in oil pressure control， and equipment issues such as engine idle speed fluctuation， climbing power breakdown， multiple ignition failures at low temperatures， and excessive black smoke emissions from the exhaust. This product has all its outer diameter， thickness， and oil hole diameters standardized for processing. After disassembling the electromagnetic valve of the fuel injector， the valve plate can be replaced alone to repair the failure of flow control. It is suitable for large-scale mining excavators， heavy-duty wheeled loaders， and long-distance heavy-duty freight trucks for the maintenance and repair of electronic common rail diesel engines.
Core Advantages of the Product
The quenched and tempered alloy steel is finely ground as a whole， with high hardness and resistance to fuel erosion and wear.
The entire alloy steel undergoes high-temperature quenching and hardening treatment， with mirror-polished surfaces on both sides. Under long-term exposure to high-pressure fuel and impurity particles， it is unlikely to develop scratches or deformation of the oil holes， maintaining standard flow distribution parameters and stable fuel injection accuracy of the fuel injector.
Multiple sets of precise positioning oil holes for uniform flow distribution without deviation
The oil holes on the surface of the disc have multiple specifications of precise diameters for diversion， and the layout of the oil holes has been calibrated for flow. During the flow of high-pressure fuel， the diversion is balanced， and the oil pressure difference is precisely controlled to ensure uniform fuel injection volume for each injection， eliminating engine vibration caused by uneven fuel supply for each cylinder.
Parallel mirror surfaces on both sides， without gaps and sealing to prevent fuel leakage
Both sides of the valve plate are micro-millimeter-level surface grinding， with extremely small parallelism tolerance. After assembly， it is completely tightly fitted with the electromagnetic valve housing and valve core， without any tiny gaps causing fuel leakage. After the engine is shut off， it quickly locks the oil circuit， maintaining residual oil pressure in the pipeline.
The model code is laser-engraved on the surface of the disc， allowing for quick identification of specifications during storage and maintenance.
The surface of the valve plate is engraved with the SF03 model and the corresponding identification characters， resistant to diesel immersion and repeated wiping without peeling. During inventory and on-site disassembly and assembly， it can quickly match the corresponding model， eliminating the risk of misinstallation leading to flow control failure and abnormal power issues.
Uniform standard outer diameter and thickness， precise assembly with no offset
The overall outer diameter and thickness are strictly controlled. When installed in the electromagnetic valve cavity， the limit position fits precisely， without radial offset or inclination， avoiding oil hole misalignment that causes oil circuit blockage and fuel supply attenuation.
Each valve plate is independently tested for flow diversion， high-pressure holding time， and plane sealing performance. The factory performance parameters are uniform， allowing for direct replacement and assembly without the need for on-site manual grinding and adjustment， significantly reducing the time for fuel injector disassembly and maintenance. List of Accessories
Applicable scenarios
It is suitable for large-scale mining excavators with high-pressure common rail fuel supply systems, heavy-duty wheeled loaders, long-distance heavy-duty freight trucks, and high-power fixed diesel generator sets. It is applicable for 24-hour continuous heavy-duty operations in mines, long-distance trunk line freight transportation, hot and dusty environments at construction sites, and heavy-duty electric control common rail diesel engine fuel injector internal flow control components replacement.
Product Basic Parameters
Product Name: SF03 Fuel Injector Flow Diversion Control Valve Plate
Part Number: SF03
Main Material: Tempered hardened alloy steel, double-sided mirror surface plane grinding
Structural Feature: Circular integrated valve disc, multiple sets of precise flow diversion oil holes, double-sided parallel sealing mirror surface, disc surface engraved model identification code
Application Conditions: Ultra-high pressure fuel flow distribution control, engine compartment alternating cold and hot continuous vibration, heavy-duty electric control common rail diesel engine fuel injector electromagnetic valve core diversion component
Product Status: Brand new complete diversion valve plate, factory completed flow distribution accuracy, high-pressure sealingity, and plane parallelism full calibration and inspection
Packaging: Independent transparent hard plastic box for separate packaging, isolated from dust and impurities, avoiding transportation compression and scratching the mirror sealing plane surface, supporting single-piece retail, bulk purchase of the entire box, and compatible with cross-border small package logistics
