Relief Valve C1200040391 is a core high-precision safety component for Hydraulic Rock Drills. It is engineered for extreme high-pressure mining hydraulic system protection. For instance, it safeguards main pump circuits in underground deep-hole drill rigs. Additionally, it protects hydraulic cylinder assemblies in open-pit hard rock drilling sites.
Mining environments pose severe challenges for drill relief valves. First, sudden extreme pressure surges risk valve core jamming and component burnout. Second, 45G continuous vibration disrupts pressure regulation precision and response speed. Third, mining slurry and humid air trigger valve body corrosion and core seizing. Fourth, frequent pressure cycling leads to seal fatigue and hydraulic leakage. Fifth, extreme temperature swings affect spring tension and valve sensitivity.
These issues often lead to valve malfunction. For example, a slow-response valve fails to release excess pressure in time. As a result, costly downtime and catastrophic hydraulic component damage occur. Yet, Relief Valve C1200040391 solves these pain points with robust design.
First, its high-strength GGG50 ductile iron valve body delivers exceptional pressure resistance. Moreover, it withstands 55MPa maximum working pressure without deformation. This outperforms standard cast iron valves by 180% in pressure capacity. Consequently, overpressure protection reliability improves significantly.
Second, the 316L stainless steel valve core + hard chrome plating ensures ultra-fast response. Notably, it achieves 0.02s pressure release speed during extreme surges. This prevents hydraulic system overpressure and critical component damage. As a result, service life extends by 250% vs. standard relief valves.
Third, the anti-corrosion epoxy powder coating + passivation offers 1200-hour salt spray resistance. This outperforms uncoated valves by 80% in harsh environments. Furthermore, it repels mining slurry and rust formation. This avoids valve body corrosion and core seizing.
Fourth, the reinforced internal spring structure and vibration-dampened design absorb 45G vibration. Importantly, it maintains ±0.3MPa pressure regulation precision under extreme drill operation. This eliminates false pressure release and regulation drift risks. This enhances overall hydraulic system safety.
Fifth, the relief valve tolerates extreme temperatures (-50°C~130°C). On top of that, it retains spring tension and valve sensitivity in all conditions. This eliminates brittleness or relaxation risks in freezing or hot mines.
Unlike generic industrial relief valves, this model is purpose-built for drills. Specifically, the 55MPa high-pressure design targets extreme mining hydraulic surge demands. Additionally, the ultra-fast response core addresses critical overpressure protection needs. These features align with real mining demands. As a result, it outperforms standard valves by 220% in service life. This cuts replacement costs and unplanned downtime.
Our manufacturing process uses CNC precision machining and hard chrome plating. Furthermore, it involves pressure testing and response time verification. Each unit undergoes 55MPa pressure trials and 0.02s response checks. Notably, no performance degradation is allowed before shipment.
The relief valve operates reliably in all extreme mining conditions. Moreover, the valve body endures 20,000-cycle pressure surge tests. No deformation or precision loss occurs during this period. Additionally, the epoxy coating remains intact for 30+ months.
The bolt-on installation design integrates seamlessly with drill hydraulic systems. It requires only standard hydraulic tools for fitting. Consequently, maintenance teams complete replacement in 12 minutes. This minimizes operational downtime.
Our quality team conducts strict ISO 9001 verification for every unit. For example, tests include pressure resistance checks, response time trials and corrosion tests. Regulation precision is also verified. Importantly, it complies with ISO 4414 hydraulic standards and mining safety regulations.
It is a direct OEM replacement for top Hydraulic Rock Drill brands. Furthermore, its reliability reduces relief valve-related failure rates by 98%. Backed by a 12-month warranty, it lowers annual maintenance costs by 68%.
It ensures reliable overpressure protection of drill critical hydraulic systems. Additionally, it extends the service life of mating pumps and cylinders by 92%. Overall, it delivers cost-effective, industrial-grade reliability. It minimizes downtime from overpressure failures. As a result, this maximizes operational efficiency and project profitability.
