HD – DB…K-Pilot Operated Pressure Relief Valve
Protect your custom hydraulic manifold blocks with the highly compact and exceptionally reliable HD DB...K Series Pilot Operated Pressure Relief Valve. Available through THM Hydraulics, this precision-engineered cartridge valve is designed to deliver smooth, chatter-free overpressure protection for sophisticated fluid power systems. By utilizing an advanced pilot-operated mechanism housed entirely within a space-saving cartridge format, the DB...K series comfortably manages intense operating pressures up to 315 bar and substantial flow rates up to 250 L/min. With four distinct pressure ranges and four customizable adjustment elements, this valve provides hydraulic engineers with the ultimate "drop-in" safety solution for high-density industrial and mobile applications.
Core Technical Specifications:-
- Component Architecture: Pilot Operated Cartridge Pressure Relief Valve
- Model Type: HD-DB...K
- Maximum Operating Pressure: Up to 315 bar
- Maximum Flow Capacity: Up to 250 L/min
- Pressure Ranges: 50, 100, 200, and 315 bar configurations
- Pressure Adjustment: 4 distinct optional adjustment elements
- Mounting Style: Cartridge connection (for manifold block insertion)
Key Features & Engineering Advantages:-
- Space-Saving Cartridge Integration: Designed specifically to be machined and threaded directly into custom hydraulic manifold blocks. This completely eliminates the need for bulky external subplates or hard piping, resulting in a cleaner, lighter, and more compact system architecture.
- Smooth, Chatter-Free Relief: The pilot-operated internal stage reacts instantly to pressure spikes, opening the main poppet gradually to vent fluid. This eliminates the violent hydraulic shock and vibration often associated with direct-acting valves handling high flow rates.
- 4 Precision Pressure Ranges: Choose the exact maximum pressure threshold your system requires—from a sensitive 50 bar up to a heavy-duty 315 bar—ensuring the valve cracks open exactly when your specific circuit demands it.
- 4 Custom Adjustment Elements: Tailor the valve’s tuning mechanism to your operational environment, giving you the flexibility to easily calibrate the pressure setting and securely lock it against heavy machine vibration or unauthorized tampering.
- High-Volume Flow Venting: Despite its compact footprint hidden inside the manifold, the internal geometry is optimized to safely bypass up to 250 liters of fluid per minute back to the reservoir without restrictive bottlenecks.
Ideal Industry Applications:-
The compact cartridge design and 315 bar endurance make the HD DB...K Series the premier choice for:
- Custom Hydraulic Power Units (HPUs): Serving as the primary, space-saving safety relief valve embedded directly into the central control block of compact power packs.
- Mobile & Construction Equipment: Protecting the tightly packed hydraulic circuits on excavators, cranes, and agricultural machinery where every inch of space and ounce of weight matters.
- Machine Tooling & CNC: Providing critical, vibration-free pressure regulation within the high-density manifolds of automated manufacturing centers.
- Injection Molding & Plastics: Safeguarding auxiliary clamping and ejector functions from thermal expansion without adding external bulk to the machine.
Why Choose the HD DB...K Series?
- Shrink Your Machine's Footprint: By hiding the pressure relief valve entirely inside the manifold block, you reduce the overall size, weight, and complexity of your hydraulic control center.
- Eliminate External Leaks: Because the valve is fully enclosed within the block, there are zero external O-rings, subplates, or steel lines that can vibrate loose and leak over time.
- Uncompromising Pump Protection: When you are pushing 250 liters of fluid per minute, a pressure spike can destroy a pump instantly. The DB...K series vents that pressure safely, quietly, and reliably.
