Gas Valve 80759069 High-Pressure Accumulator Valve for Rock Drills & Hydraulic Systems

Key Features

• High-Pressure Resistance
  Constructed from heat-treated alloy steel with a corrosion-resistant nickel plating, the valve withstands operating pressures up to 40 MPa, making it suitable for high-impact drilling operations in hard-rock formations.
• Precision Pressure Regulation
  A spring-loaded adjustment mechanism allows for accurate nitrogen charge calibration (tolerance ±1%), maintaining optimal hydraulic system pressure to enhance drill bit performance and reduce component wear caused by pressure fluctuations.
• Leak-Proof Sealing System
  Double-lip seals made of high-temperature-resistant elastomers and precision-machined threads (SAE J518 standard) prevent gas leakage, even under extreme vibrations and temperature variations common in underground and surface drilling.
• Universal Compatibility
  Designed to fit standard hydraulic accumulator ports (1/4 NPT or M14x1.5 threads), the valve works seamlessly with a wide range of drilling rig models and aftermarket accumulator kits.

Applications

• Rock Drilling Equipment: Compatible with jumbos, crawler drills, and handheld rock drills used in hard-rock mining and construction projects.
• Hydraulic Systems: Ideal for pressure stabilization in drill rig rotation, propulsion, and percussion circuits, as well as industrial machinery requiring consistent fluid power.
• Maintenance & Repair: Suitable for replacing worn valves in hydraulic accumulators to restore system efficiency and prevent costly downtime.

Benefits for Industrial Operations

• System Stability: Consistent pressure regulation reduces hydraulic shock, extending the lifespan of pumps, hoses, and cylinders by up to 20%.
• Performance Optimization: Proper nitrogen charge ensures optimal energy transfer to drill bits, improving penetration rates in dense rock by 10-15%.
• Cost Efficiency: Durable construction and leak-proof design minimize maintenance frequency and replacement costs, offering a low total cost of ownership.

Installation & Maintenance

• Installation:
  1. Depressurize the accumulator completely before installation.
  2. Use a torque wrench to tighten the valve to 25-30 N·m (avoid over-tightening to prevent thread damage).
• Maintenance:
  • Inspect for leaks using a soap bubble test during routine equipment checks.
  • Replace seals every 1,000 operating hours in harsh environments to maintain sealing performance.
• Storage: Store in a dry, dust-free environment to prevent corrosion of metal components.