Description
### Product Overview
The common rail pressure limiting valve is installed on the fuel common rail pipe, continuously monitoring the internal pressure of the high-pressure fuel pipeline. When the system oil pressure exceeds the safety threshold, the valve core automatically opens to release the excess pressure, preventing the common rail pipe, injectors, and high-pressure oil pump from being damaged due to overpressure. Over time, due to long-term use, erosion by oil impurities, and frequent pressure shocks, the valve core may get stuck, the seal may fail, and abnormal pressure relief may occur, resulting in unstable rail pressure, difficulty starting, insufficient power, and the fault light coming on. This product is standardized in terms of its thread specifications and pressure relief opening pressure. During maintenance and replacement, it can be directly replaced with a single piece without the need for complex debugging. It is suitable for the maintenance and servicing of various diesel vehicles and construction machinery engines that are equipped with common rail systems.
Core advantages of individual products
1. **High-strength alloy steel valve body, resistant to high pressure and impact, and not prone to deformation**
The valve body is precisely machined from high-quality alloy steel and undergoes surface strengthening treatment. It can withstand the high-pressure fuel impact of the common rail system for a long time, resist diesel corrosion and temperature fluctuations, and the threads are not prone to loosening. The overall structure is stable and reliable.
2. **Precise built-in pressure relief valve core, with precise and sensitive pressure triggering**
The internal valve core has a strict clearance, and the opening pressure is stable. When the oil pressure exceeds the limit, it quickly releases the pressure; after the pressure drops, it reliably closes to maintain the normal working rail pressure of the system and ensure stable engine power output.
3. **Standard external thread structure, with strong versatility, and convenient disassembly and assembly**
The thread size precisely matches the installation base, and the disassembly and assembly operation is simple. The maintenance time is short, and it is suitable for the corresponding specification common rail pipe installation holes. Replacement is simple.
4. **Complementary high-pressure resistant sealing gasket, effectively preventing fuel leakage**
Equipped with high-temperature and oil-resistant seals, after installation, it isolates fuel leakage and prevents high-pressure oil circuit leakage and intake air. It avoids difficulties in starting and fluctuations in oil pressure.
5. **Resistant to alternating high and low temperature conditions, suitable for complex working environments**
The material is compatible with the variable working temperatures of outdoor construction machinery and trucks. Under alternating high and low temperature conditions, the performance is stable, and it is unlikely to have pressure relief failure or leakage faults.
6. **Each piece undergoes individual pressure testing upon leaving the factory, with uniform performance of each piece**
Each product undergoes opening pressure and sealing performance tests. The parameter consistency is high, and it quickly recovers the protection function of the fuel system after replacement.
### List of Accessories
- 1110010026 Common Rail Pressure Limiting Valve 1 unit
- Sealing gaskets are pre-installed together with the valve.
### Applicable Scenario
It is suitable for use in trucks, buses, excavators, loaders and other construction machinery equipped with common rail diesel engines, and is used for the maintenance and replacement of pressure protection components of high-pressure common rail fuel pipelines.
### Product Basic Parameters
Product Name: Common Rail Pressure Limiting Valve (Pressure Limiting Valve)
Part Number: 1110010026
Main Material: High-strength alloy steel, oil-resistant fluorine rubber sealing ring
Structural Feature: External thread installation structure, built-in pressure relief valve core assembly
Applicable Working Conditions: Diesel engine high-pressure common rail system, continuous pressure fluctuations, wide temperature difference working condition oil circuit pressure protection accessory
Product Status: Brand-new complete pressure limiting valve assembly, factory completed opening pressure and sealingity bench calibration and testing
Packaging: Independent shock-proof packaging, protecting against thread磕碰 damage； supports single-piece retail， bulk purchase in cases， suitable for cross-border logistics transportation.
