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Rexroth Type DBW Relief Valve | DBW30B DBW20B | Solenoid Unloading Valve | NG20 NG30
| Model Number | DBW30B-1-50/31.5G24NZ5L, DBW20B-1-50/31.5AW220-NZ5L, DBW |
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Product Description
Rexroth Type DBW Series Pilot-Operated Relief Valves with Solenoid Unloading
Product Overview: The DBW Series is a high-performance, pilot-operated pressure relief valve integrated with a solenoid-actuated directional valve for remote system unloading. As the heavy-duty industrial standard for Size 20 (NG20) and Size 30 (NG30) footprints, this series is engineered to protect hydraulic systems against overpressure and allows for seamless switching to a low-pressure bypass mode via electrical signals.
This category highlights primary configurations: the high-flow DBW30B-1-50/31.5G24NZ5L (24V DC) and the AC-powered DBW20B-1-50/31.5AW220-NZ5L (220V AC). These valves are critical for safety and efficiency in large-scale presses, metallurgical machinery, heavy hydraulic power units (HPUs), and injection molding equipment.
Key Technical Advantages:
Efficient Solenoid Unloading: Enables no-load system starting or remote emergency pressure relief, significantly improving energy efficiency and reducing wear on hydraulic pumps.
Precise Pressure Regulation: Supports rated pressures up to 31.5 MPa (4,500 PSI) with a highly sensitive pilot stage, ensuring minimal pressure override and high accuracy.
High-Flow Capacity: Specifically the DBW30 size, designed to handle massive flow rates and stabilize pressure surges during rapid load changes.
Wet-Pin Solenoid Engineering: Features quiet operation, rapid response, and superior coil heat dissipation for demanding high-cycle environments.
Detailed Specifications & Parameters:
Core Series: Rexroth Type DBW Pressure Relief Valve.
Featured Model Matrix: DBW30B-1-50/31.5G24NZ5L, DBW20B-1-50/31.5AW220-NZ5L.
Core Performance Specs:
Nominal Size: Size 20 (NG20 / CETOP 08) and Size 30 (NG30 / CETOP 10).
Max Setting Pressure: 31.5 MPa (315 Bar / 4,500 PSI).
Voltage Specs: G24 (24V DC), AW220 (220V AC).
Electrical Interface: Z5L (Large square connector with indicator light).
Mounting Pattern: Subplate mounting to international standards.
Company Profile
We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
Our Advantages
Fast & Reliable Delivery
Extensive Partnerships
We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses
Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
Competitive Pricing
Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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