Description
Product Overview
The valve plate of the control valve is the core component for electromagnetic control of the electronically controlled fuel injector. It relies on the flow channel on the surface and the central steel ball to form a sealing combination with the electromagnetic armature, receiving the electronic control signal to precisely control the on-off of high-pressure fuel and the single-shot fuel injection volume. After long-term exposure to heavy mining loads, high-temperature and high-pressure diesel erosion, the flow channel gets clogged and the sealing surface of the steel ball is worn out. This can lead to incorrect injection timing, imbalance in fuel injection volume for each cylinder, decline in overall engine power, and soaring fuel consumption. This product integrates the base, the flow channel surface, and the sealing steel ball, and is completed with flow accuracy, high-pressure sealing performance, and electromagnetic response matching detection at the factory. No additional scattered parts are required. It is suitable for large-scale mining excavators, heavy-duty trucks, and large-power diesel generator sets for fuel injector major repairs.
Unique Core Features of the Single Product
The black outer ring limit base is stable and firmly assembled without deviation.
The integrated peripheral wear-resistant limit base is precisely positioned and limited when installed in the fuel injector housing, ensuring that the valve plate does not tilt or shift under long-term vibration operations, maintaining stable injection control parameters and avoiding excessive fuel supply differences for each cylinder.
The polygonal mirror surface flow channel steel surface evenly distributes the oil pressure.
The central polygonal hardened alloy steel working surface has multiple groups of precise flow oil holes arranged, ensuring smooth flow and distribution of high-pressure fuel, linear oil pressure regulation without sudden changes, eliminating acceleration jolts and unbalanced power at high and low speeds, and promoting complete combustion to reduce carbon deposits and black smoke.
The center integrated precision sealing steel ball tightly locks the high-pressure oil circuit and prevents leakage and internal pressure loss.
The high-precision micro steel ball pre-installed in the center of the surface is closely adhered to the valve seat sealing surface at the micrometer level. In the event of power loss, it quickly cuts off the high-pressure oil circuit to prevent fuel from dripping into the cylinder, causing difficulties in cold start and accumulation of carbon deposits, and significantly reducing internal pressure leakage and pressure drop.
The overall hardened and wear-resistant processing resists impurities erosion and has a long service life.
The working surface of the valve plate is quenched and mirror-ground, with high hardness. Diesel impurities and high-pressure erosion are less likely to cause scratches, abrasions, and deformation of the oil channel. It is suitable for harsh working conditions with high impurities in mining areas, reducing maintenance frequency.
Standard external hole position dimensions, no grinding required, direct assembly and replacement.
The outer diameter of the base, the position of the oil holes, and the installation size of the steel ball are standardized for corresponding fuel injector specifications. Installation and replacement can be directly carried out without size deviation or assembly jamming, significantly reducing maintenance time. Applicable scenarios
It is suitable for heavy-duty freight trucks with electronic control common rail systems, large mining excavators, heavy-duty loaders, high-power fixed diesel generators. It is applicable to mining areas and construction sites for 24-hour full-load operation under high temperature and high dust conditions. It is suitable for the overhaul of heavy-duty diesel fuel injection systems of electrically controlled common rail diesel engines.
Product basic parameters
Product name: Common Rail Injector Control Valve Plate
Part number: 7206-1013
Main material: Quenched alloy steel flow guiding working surface, wear-resistant limit base, high-precision bearing steel sealing steel balls
Structural features: Black outer ring limit base, polygonal multi-oil hole flow guiding surface, central integrated structure of sealing steel balls
Application conditions: 24-hour continuous full-load operation, long-term high-temperature in the engine compartment, outdoor high-dust heavy-duty electrically controlled common rail diesel engine fuel injector
Product status: New integrated control valve plate, factory completed with full set of detection for flow accuracy, high-pressure internal leakage sealingity, and electromagnetic response matching
Packaging: Separately packaged with transparent protective tubes, isolating transportation from磕碰划伤 (knock and scratch) of the precise oil channels and steel balls， supporting single-piece and multiple sets of batch purchases， and compatible with cross-border small package logistics.
