HD – DZ – Pilot operated pressure sequence valve
Automate and perfectly synchronize your complex hydraulic machine cycles with the HD DZ Series Pilot Operated Pressure Sequence Valve. Available through Thm Hydraulics, this critical component ensures that secondary hydraulic operations only begin after the primary operation has reached a specific, pre-set pressure. Engineered for heavy-duty, high-volume systems, the DZ series utilizes an advanced pilot-operated mechanism to seamlessly manage extreme flow rates up to 600 L/min and operating pressures up to 315 bar. Whether you are coordinating a "clamp then press" or "clamp then drill" sequence, this valve guarantees that your actuators move exactly when they are supposed to, enhancing overall machine efficiency and safety.
Core Technical Specifications:-
- Component Architecture: Pilot Operated Pressure Sequence Valve
- Model Type: HD-DZ
- Maximum Operating Pressure: Up to 315 bar
- Maximum Flow Capacity: Up to 600 L/min
- Pressure Ranges: 50, 100, 200, and 315 bar configurations
- Pressure Adjustment: 4 distinct optional adjustment elements
- Mounting Style: Sub-plate mounting
Key Features & Engineering Advantages:-
- Flawless Operational Sequencing: The internal pilot stage continuously monitors the primary circuit's pressure. Once the set threshold is achieved (e.g., a clamp is fully secured), the valve opens to supply fluid to the secondary circuit (e.g., advancing a cutting tool), ensuring perfect mechanical timing.
- Massive 600 L/min Flow Capacity: Unlike smaller direct-acting sequence valves, the pilot-operated design allows this unit to handle the massive fluid volumes required by large-scale industrial presses and heavy mobile equipment without causing restrictive bottlenecks.
- Optional Integrated Check Valve: Can be configured with an optional check valve. This allows for free, unrestricted reverse flow when the cylinders need to retract, eliminating the need for complex external bypass piping.
- 4 Precision Pressure Ranges: Choose from 50, 100, 200, or 315 bar ranges to ensure the valve's sensitivity perfectly matches the exact pressure threshold required to trigger your secondary circuit.
- 4 Custom Adjustment Elements: Tailor the adjustment mechanism to your specific security needs, allowing you to easily calibrate the sequence timing while protecting the settings from heavy machine vibrations.
- Leak-Free Subplate Integration: Designed for robust sub-plate mounting, seamlessly integrating onto standard manifold blocks for a clean, organized, and leak-proof hydraulic layout.
Ideal Industry Applications
The flawless sequencing and massive flow capacity make the HD DZ Series the premier choice for:
- Automated Machine Tooling: Guaranteeing that work-pieces are securely clamped at full pressure before high-speed drilling or milling operations begin.
- Injection Molding & Plastics: Synchronizing the massive mold-closing cylinders with the high-pressure injection and ejector pin sequences.
- Heavy Industrial Presses: Ensuring proper sequential staging of multi-cylinder metal forming, stamping, and extrusion equipment.
- Material Handling & Baling: Coordinating the complex pressing and tying cycles in large-scale scrap balers and industrial compactors.
Why Choose the HD DZ Series?
- Eliminate Machine Collisions: Ensure your secondary actuators never move before the primary ones are safely locked in, preventing catastrophic tool breakage and ruined products.
- Simplify Your Circuit Logic: Instead of relying on complex electronic sensors and PLCs to time your cylinders, this valve provides foolproof, mechanical sequencing driven directly by fluid pressure.
- Heavy-Duty Reliability: Built to effortlessly survive the continuous 315 bar pressure cycles of extreme industrial environments without losing its precise sequencing calibration.
