Check Valve 4120009335, C1200000071 | High-Pressure for Rock Drill Jumbos
4120009335, C1200000071 Check Valve for Rock Drill Jumbos – 350 bar, 100 L/min, NBR Seals, ISO 5781 Compliance
316 stainless steel body | NBR seals (ISO 16232-7) | 10 million cycle lifespan

Check Valve 4120009335, C1200000071 | High-Pressure for Rock Drill Jumbos

Part Number: 4120009335, C1200000071

 

  • Technical Specifications:
    • Material: 316 stainless steel body with NBR seals (ISO 16232-7)
    • Pressure Rating: 350 bar maximum working pressure
    • Flow Capacity: 100 L/min (at 350 bar)
    • Response Time: 5ms closing time
  • Design Features:
    • Ports: BSPP 1″ (ISO 228-1) threaded connections
    • Mounting: ISO 6162-1 compatible flange
    • Coating: 15μm electroless nickel plating
  • Performance Metrics:
    • Operating Temperature: -20°C to +120°C
    • Cycle Lifespan: 10 million cycles (under rated conditions)
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Heavy-Duty Check Valve for Rock Drill Jumbos
Designed to prevent reverse fluid flow in hydraulic systems of rock drill jumbos, this check valve ensures reliable operation in high-pressure mining environments. Its robust construction withstands vibration, pressure surges, and abrasive contaminants, critical for maintaining system integrity during drilling operations.

 

Technical Specifications & Design
  • Core Construction:
    • 316 stainless steel body provides exceptional corrosion resistance (15μm electroless nickel plating enhances durability), while NBR seals (ISO 16232-7) ensure leak-tight performance with hydraulic oils and coolants .
    • Rated for 350 bar maximum working pressure, it handles the peak pressures generated by rock drill jumbo hydraulic pumps, preventing backflow that could damage sensitive components .
  • Precision Engineering:
    • 5ms closing response time minimizes pressure drop during flow reversal, protecting hydraulic cylinders and motors from cavitation. BSPP 1″ ports (ISO 228-1) with ±0.05mm concentricity ensure seamless integration with standard hydraulic lines .
  • Environmental Resilience:
    • Operates reliably from -20°C (cold underground mines) to +120°C (high-friction hydraulic circuits), maintaining seal integrity and pressure ratings across temperature extremes .
    • 72-hour salt spray resistance (ASTM B117) validates its suitability for damp or humid mining conditions, extending service intervals by 40% compared to uncoated valves .

 

Applications
  • Rock Drill Jumbos: Protects hydraulic pumps, cylinders, and control valves in drill arm and propulsion systems.
  • Mining Equipment: Compatible with loaders, crushers, and tunneling machines requiring high-pressure check valves.
  • Industrial Hydraulics: Suitable for heavy-duty presses, injection molding machines, and steel mill hydraulic systems.

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