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Product details
HDD Control Valves Control valves** in HDD rigs manage the direction, flow rate, and pressure of hydraulic fluids powering various components, such as: Thrust/pullback systems Drill rotation motors Clamp/vise actuators Pipe loader arms Mud pump drive systems They can be manual, pilot-operated, or electro-hydraulic depending on system complexity. �� 2. Types of Valves Used in HDD Systems Valve Type Function Common Placement Directional Control Valve (DCV) Directs flow to actuators (e.g. extend/retract cylinders) Main hydraulic circuits Flow Control Valve Regulates speed of actuators by limiting flow Rotation/thrust speed adjustment Pressure Relief Valve Protects system from overpressure Inline with all major circuits Pilot-Operated Check Valve Locks actuators in place under load Clamp and rotation holding systems Solenoid Valve Electrically controlled valve for automated function Remote or onboard controls Load-Sensing Valve Adjusts flow based on demand, improving efficiency Advanced HDD rigs ⚙️ 3. Features: High pressure handling (up to 5000 psi / 350 bar) Compact modular manifolds for integrated control Stackable for space-efficient designs Available in cartridge or monoblock forms Options for manual levers, electric joystick, or remote radio control �� 4. Specifications (Typical): Spec Value Flow Rate 20–150 L/min Pressure 210–420 bar (3000–6000 psi) Ports BSP, NPT, or SAE Control Manual, electric, or hydraulic pilot Material Steel or cast iron (plated for corrosion resistance) �� 5. Brands Used in HDD Machines: Rexroth (Bosch) Parker Hannifin Hydac Sun Hydraulics Danfoss / Eaton Walvoil, Yuken, and Atos �� 6. Applications in HDD Rigs: System Valve Role Thrust/Pullback Directional & flow control for hydraulic cylinders Rotation Drive Speed & torque control via flow/pressure regulation Clamp/Vise Check valves to hold position under load Rod Loader Directional valves for actuator motion Drill Head Steering Fine pressure and flow adjustments for steering nozzles �� 7. Maintenance & Troubleshooting: Regularly inspect for leakage, spool stickiness, or overheating Ensure filters are clean to avoid contamination wear Check for correct voltage on solenoid coils Use diagnostic tools to monitor pilot pressure and feedback
