Relief Valve C1200040381 is a core safety component for Hydraulic Rock Drills. It is engineered for extreme high-pressure mining hydraulic system protection. For instance, it safeguards pump circuits in underground drill power units. Additionally, it protects main valve blocks in open-pit drill hydraulic systems.
Mining environments pose severe challenges for drill relief valves. First, sudden pressure surges risk valve core jamming and system damage. Second, 40G continuous vibration disrupts pressure regulation precision and response speed. Third, mining slurry and humid air trigger valve body corrosion and rusting. Fourth, frequent pressure cycling leads to seal fatigue and leakage. Fifth, extreme temperatures affect spring tension and valve sensitivity.
These issues often lead to valve malfunction. For example, a slow-response valve fails to release excess pressure. As a result, costly downtime and hydraulic component burnout occur. Yet, Relief Valve C1200040381 solves these pain points with robust design.
First, its high-strength ductile iron valve body delivers exceptional pressure resistance. Moreover, it withstands 50MPa maximum working pressure without deformation. This outperforms standard cast iron valves by 160% in pressure capacity. Consequently, overpressure protection reliability improves significantly.
Second, the 304 stainless steel valve core + nitrided treatment ensures fast response. Notably, it achieves 0.03s pressure release speed during surges. This prevents hydraulic system overpressure and component damage. As a result, service life extends by 220% vs. standard relief valves.
Third, the anti-corrosion epoxy coating + passivation offers 1000-hour salt spray resistance. This outperforms uncoated valves by 70% 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 40G vibration. Importantly, it maintains ±0.5MPa 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 (-40°C~120°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 50MPa high-pressure design targets mining hydraulic surge demands. Additionally, the fast-response core addresses overpressure protection needs. These features align with real mining demands. As a result, it outperforms standard valves by 200% in service life. This cuts replacement costs and unplanned downtime.
Our manufacturing process uses CNC precision machining and nitriding treatment. Furthermore, it involves pressure testing and response time verification. Each unit undergoes 50MPa pressure trials and 0.03s 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 15,000-cycle pressure surge tests. No deformation or precision loss occurs during this period. Additionally, the epoxy coating remains intact for 24+ 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 15 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 97%. Backed by a 12-month warranty, it lowers annual maintenance costs by 65%.
It ensures reliable overpressure protection of drill hydraulic systems. Additionally, it extends the service life of hydraulic pumps and valve blocks by 88%. Overall, it delivers cost-effective, industrial-grade reliability. It minimizes downtime from overpressure failures. As a result, this maximizes operational efficiency and project profitability.
