Description
Product Overview
The pressure-limiting relief valve is installed at the end of the high-pressure common rail pipe. When the oil pressure in the pipeline exceeds the calibrated safety threshold, it automatically opens to release pressure. The built-in one-way structure prevents the backflow of high-pressure fuel. Under long-term mining heavy-load, continuous high-pressure oil pressure impact, and impure diesel erosion conditions, the internal valve core sealing surface will wear, resulting in pressure offset, loss of rail pressure control, insufficient acceleration, rapid oil pressure release after engine shutdown, and difficulty in cold start. This product has standardized specifications for threads, pressure relief threshold, and valve body dimensions. The valve core seal surface is worn. In such cases, the pressure relief pressure will deviate, the rail pressure will be out of control, the engine will not accelerate effectively, and the oil circuit will rapidly release pressure during cold start. The maintenance can be repaired by simply replacing the relief valve. It is suitable for large mining excavators, heavy-duty long-distance trucks, and high-power diesel generator sets with electric control common rail engines for maintenance and servicing.
Core advantages of the product
Segmented galvanized alloy steel valve body, rust-proof, withstands pressure, and is resistant to diesel corrosion
Overall steel is treated with hot galvanizing, isolating the cabin water vapor, diesel oil, and rust, and the double-segmented shell is locked together as a whole, able to withstand thousands of bar of high-pressure continuous impact. Under long-term jolting conditions, there will be no cracking or leakage.
Integrated hexagonal clamping platform in the middle, the force during disassembly and assembly is uniform and not prone to slipping
The complete hexagonal positioning structure in the middle section of the valve body is suitable for standard wrench clamping for disassembly and assembly, and will not twist the internal precision valve core, avoiding valve body deformation and thread damage.
Precise rolled outer threads at the front end, combined with the matching gasket for sealing without pressure leakage
The regular outer threads at the front end, combined with a metal locking nut and double-layer sealing gasket, after tightening, multiple layers of filling assembly gaps, no fuel leakage under high-pressure conditions, stable common rail base oil pressure.
The outer wall is engraved with multiple sets of identification codes, making it easy to match the model during inventory and maintenance.
The metal surface is laser engraved with 0260, 07R, 05102 identification codes, resistant to diesel soaking and repeated wiping without code loss. It is easy to distinguish specifications during storage and on-site maintenance, avoiding incorrect installation and resulting in failure of oil pressure protection.
Built-in precision one-way relief valve core, with linear response sensitivity to pressure adjustment
The valve core is precisely ground and sealed with the valve seat, opening to release pressure instantly when overpressure occurs, closing and locking the oil circuit immediately when the pressure drops, maintaining a stable rail pressure range throughout, eliminating speed drift and acceleration jolts.
Each relief valve is independently pressure calibrated during factory production, and no secondary calibration is required during assembly.
Each valve is individually tested for pressure relief opening pressure, high-pressure sealingity, and flow rate. The factory parameters are unified, and after assembly, it directly matches the original vehicle's electronic control system, quickly restoring the oil circuit to a safe and stable pressure-holding condition.
List of accessories
095420-0260 Complete common rail pressure-limiting relief valve body 1 piece
Matching locking nut 1 piece
Matching metal sealing gasket 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 for 24-hour continuous heavy-duty operations in mines, long-distance freight transportation, continuous high-temperature and vibration in the engine compartment, and dusty and impure diesel corrosion environments. It is used for replacing the oil pressure protection components of heavy electronic control common rail diesel engine pipelines in such harsh environments.
Product Basic Parameters
Product Name: 095420-0260 Common Rail Pressure Limiting Overflow Valve Assembly
Part Number: 095420-0260
Main Material: Galvanized alloy steel valve body, hardened single-direction sealing valve core, metal locking nut, metal sealing gasket
Structural Feature: Segmented double hexagonal valve body, front end external threaded installation interface, outer wall engraved identification code, matching locking nut and sealing gasket, built-in single-direction pressure relief and sealing mechanism
Application Conditions: Ultra-high oil pressure overload protection, engine compartment alternating cold and hot conditions, diesel medium corrosion heavy electronic control common rail diesel engine
Product Status: New and complete overflow valve assembly, factory completed with pressure relief pressure, high-pressure sealingity, and flow response full bench calibration and testing
Packaging: Single-piece independent hard tube protection packaging, threaded end equipped with plastic dust-proof plug, foam buffer protection to avoid磕碰划伤 the threaded and valve core sealing surface during transportation， supports single-piece retail， bulk purchase in cartons， and is compatible with cross-border small package logistics.
