Description
Product Overview
The rail pressure sensor is installed on the high-pressure oil rail and continuously collects the fuel pressure values in the pipeline. The electronic control unit uses this signal to regulate the fuel supply volume of the oil pump and the fuel injection strategy. Under the long-term working conditions of high-temperature and high-pressure fuel continuous impact, the internal sensing elements age and the seals leak, resulting in distorted oil pressure signals, unbalanced fuel supply ratio, significant decline in engine power, and increased fuel consumption. This complete integrated sensor assembly is factory-tested for all items including high-pressure resistance, pressure collection accuracy, and high-low temperature stability. The thread specifications are unified, and disassembly and assembly do not require modification or adaptation. It is suitable for maintenance of light trucks, heavy trucks, and construction machinery common rail injection systems.
Unique core advantages of this product
The thickened hexagonal metal pressure-bearing base resists high-pressure impact and does not deform easily
The mid-section integrated widened hexagonal metal flange can withstand the high-pressure impact of the system and does not bulge or crack, and at the same time is compatible with standard wrenches for disassembly and assembly. The tightening torque is controllable, and there is no leakage or pressure loss at the threaded part during long-term vibration operations.
The precise brass high-pressure threaded connector seals the oil rail
The lower end brass external threaded oil passage connector has precise thread pitch and hole diameter dimensions, and perfectly fits the installation hole of the high-pressure oil rail. When paired with the matching sealing gasket, it forms multiple layers of barriers to prevent high-pressure fuel leakage, ensuring stable rail pressure output.
The snap-lock waterproof electronic control plug resists interference and has stable signal transmission
The upper part black injection molded wiring connector has a built-in locking clip, and the internal part is filled with oil-resistant and waterproof rubber core, isolating the engine compartment oil, water vapor, and line electromagnetic interference. During vehicle vibration, the pins do not have false connections, and the oil pressure signal transmission is continuous and without distortion.
The built-in high-precision sensing chip has precise pressure collection linearity
The internal is equipped with a high-precision pressure sensing chip, responding smoothly and without deviation in all working conditions of the oil pressure range. The oil pressure values are accurately reflected under high and low loads, ensuring precise matching of fuel injection timing and fuel injection volume.
The oil-resistant and high-temperature composite sealing structure is suitable for harsh engine compartment environments
The sensor has multiple layers of oil-resistant rubber seals inside, preventing high-pressure fuel from entering the circuit cavity. The outer shell is modified engineering plastic that can withstand alternating cold and heat, diesel corrosion, and does not age or crack, extending the service life. Applicable scenarios
It is suitable for light/heavy-duty freight diesel vehicles with electronic control common rail fuel supply system, mining excavators, wheeled loaders, fixed diesel generator sets. 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 major overhauls of small and heavy electric control diesel engines with common rail fuel systems.
Product basic parameters
Product name: Common Rail High Pressure Pressure Sensor
Part number: 0281002909
Main material: Rust-proof alloy hexagonal base, brass high-pressure threaded connector, oil-resistant modified engineering plastic housing, high-precision pressure sensing chip, multi-layer rubber seals
Structural features: Hexagonal metal pressure-bearing base, brass high-pressure oil circuit threaded, snap-fit waterproof electronic control plug, built-in high-pressure sensing chip
Application conditions: Continuous full-load operation, engine compartment alternating between cold and hot, outdoor high-dust small/medium-sized/ heavy electric control common rail diesel engines
Product status: New and complete common rail pressure sensor assembly, factory completed with high-pressure withstand, pressure accuracy, and waterproof aging full calibration and testing
Packaging: Independent shock-proof small cardboard box packaging, protective isolation for the electronic control plug end, to avoid damage to the pins due to transportation compression, supports single-piece and multi-piece batch purchases, and is compatible with cross-border small package logistics.
