Description
Product Overview
The control valve housing serves as the installation base for the internal components of the injector, housing the valve core, springs, and other precision parts. Multiple oil channels distribute high-pressure fuel, and a flat seal isolates the high and low pressure oil chambers. Over time, under the impact of thousands of bar of high-pressure fuel, impurities from diesel, and alternating conditions of cold and hot in the engine compartment, the shell's surface becomes worn, and the edges of the oil channels develop burrs. This can lead to fuel leakage and pressure imbalance, difficulties in cold start, excessive black smoke in exhaust emissions. This product features a unified standardization of the stepped outer diameter, oil hole diameter, and sealing plane dimensions. After disassembling and repairing the injector, the housing can be replaced alone to repair the oil circuit seal failure. It is suitable for the maintenance of electric control common rail injectors for construction machinery and heavy trucks.
Core advantages of this product:
The stepped extruded alloy steel is formed as a single piece, resistant to pressure and wear, and not prone to deformation.
The multi-step stepped metal structure is fully quenched and hardened, with both the outer and inner walls polished to a mirror finish. It can withstand extremely high oil pressure impacts for a long time, and is less likely to deform or rust under harsh conditions, maintaining the accuracy of the oil passage fit for a long time.
The top surface has a precise multi-oil channel layout, ensuring balanced and smooth fuel flow distribution.
The center main fuel supply hole + dual side auxiliary fuel holes are designed in combination. The inner walls of the oil channels are smooth without burrs, reducing fuel flow resistance, and the flow difference between each cylinder is small, ensuring smooth engine operation.
The high-precision mirror-sealed end face prevents oil leakage between the high and low pressure oil chambers.
The upper surface is micro-milled for precise processing, with strict control of flatness. After assembly, it fits perfectly with the valve core sealing component, preventing cross-leakage of high-pressure fuel and stabilizing the working oil pressure of the common rail system.
The side walls have side-mounted oil flow holes for quick pressure relief and return flow response.
Standard return oil holes are reserved on the side, allowing excess fuel to quickly return and relieve pressure. The oil pressure adjustment is linear and smooth, eliminating acceleration jolts and speed drift issues.
The stepped outer diameter is standardized, and the assembly alignment has no offset or jamming.
The tolerance of the multi-step outer diameters is extremely small, and after being installed in the injector body, the coaxiality is precise. The valve core reciprocates smoothly without sticking, ensuring stable response speed for fuel injection opening and closing.
Each piece is independently inspected for the coaxiality of the oil holes, the sealing accuracy of the plane, and the pressure-bearing capacity. The factory parameters are unified, and after assembly, it directly matches the original valve core component, reducing maintenance time.
Accessory list:
7135-0815 Control Valve Housing 1 piece Applicable scenarios
It is suitable for large mining excavators with high-pressure common rail fuel supply system, heavy-duty wheeled loaders, long-distance heavy-duty freight trucks, and high-power fixed diesel generators. It is applicable to heavy-duty electric control common rail diesel fuel injectors in environments with 24-hour continuous heavy load, long-distance freight transportation, continuous high-temperature vibration in the engine compartment, and dust and impurity diesel corrosion. The internal valve body base of the heavy-duty electric control common rail diesel fuel injector needs to be replaced.
Product basic parameters
Product name: 7135-0815 Injector Control Valve Housing
Part number: 7135-0815
Main material: Tempered hardened alloy steel
Structural features: Multi-layer stepped cylinder body, central main oil hole on the top surface + auxiliary oil holes on both sides, side wall return oil holes, mirror-finished sealed upper surface
Application conditions: Ultra-high oil pressure fuel diversion, engine compartment alternating cold and hot, heavy-duty electric control common rail diesel engine fuel injector internal components
Product status: New and complete valve body housing, factory completed with hole diameter accuracy, flat sealing, and full set of bench calibration and testing for high-pressure pressure resistance
Packaging: Single piece independent hard tube protection packaging, plastic dust-proof plugs at both ends to protect the precise sealing surface and oil passage, avoiding transportation磕碰划伤 the working surface， supporting single-piece retail， bulk purchase in cases， and compatible with cross-border small package logistics.
