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DA20 & DA10 Unloading Relief Valve | DA20-1-30B/315 | DA10-1-30B/160 | Pressure Regulating Valve
| Model Number | DA10-1-30B/315 |
|---|
Product Description
DA Series Pilot-Operated Unloading Relief Valves
Product Overview: The DA Series is a high-performance pilot-operated unloading relief valve, specifically engineered for hydraulic systems equipped with accumulators to provide automatic pump unloading and pressure regulation. When system pressure reaches the preset threshold, the valve diverts the pump flow back to the reservoir at minimum pressure, significantly reducing power consumption and heat generation. Built with the proven 30B Design Series, the DA series offers exceptional stability and a long service life for injection molding machines, industrial presses, and hydraulic power units (HPUs).
Featured models on this page include: DA10-1-30B, DA20-1-30B, DA20-2-30B, and the high-flow DA30-2-30B, with pressure ratings of 80/160/315 Bar.
Key Technical Advantages:
Energy-Efficient Unloading: Automates the unloading cycle by monitoring accumulator pressure, drastically improving the overall hydraulic system efficiency.
Graduated Pressure Selections: Available in 80, 160, and 315 Bar adjustment ranges, ensuring linear and stable control across various operating pressures.
Precision Pilot Modulation: Compared to direct-acting valves, the DA series exhibits smaller pressure overrides and superior repeatability during relief cycles.
Modular Integration: Available in subplate or threaded mounting options compliant with ISO standards for seamless system integration and maintenance.
Detailed Specifications & Parameters:
Core Model Matrix:
DA10-1-30B/315: Size 10 (3/8″), Max Pressure 315 Bar.
DA20-1-30B/160: Size 20 (3/4″), Max Pressure 160 Bar for medium-pressure systems.
DA20-2-30B/315: Enhanced Size 20 unloading valve for high-pressure operations.
DA30-2-30B/315: Size 30 (1-1/4″) for pressure control in ultra-high-flow systems.
Core Technical Specs:
Max Operating Pressure: Rated up to 315 Bar (4500 PSI).
Pressure Ratings: 25, 50, 100, 200, 315 Bar corresponding to different spring ranges.
Design Series: 30B Series.
Seals: Standard NBR; FKM (Viton) available upon request.
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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