【先导式溢流阀 DB20B 产品介绍】
DB20B 先导式溢流阀是一款专为液压系统压力控制设计的核心元件，适用于多种工业设备与机械装置的流体控制需求。该产品通过先导阀与主阀的协同工作，实现系统压力的精确调节与稳定保护，兼具响应速度快、调节范围广、运行可靠等特点，可有效提升液压系统的综合性能。
产品采用模块化结构设计，主体材质选用高强度合金钢与耐磨密封元件，确保在高压工况下的长期稳定运行。其核心优势体现在对系统压力波动的快速响应能力，通过先导控制回路实现主阀芯的灵敏启闭，既能精准限制系统最大压力，又可减少能量损耗。独特的多级阻尼设计进一步优化了压力调节曲线，有效降低液压冲击，延长设备使用寿命。
在应用场景方面，DB20B 可广泛应用于工程机械、冶金设备、船舶甲板机械等领域的液压系统，特别适用于需要动态压力补偿或负载变化频繁的工况环境。产品提供多种油口连接规格，适配 DIN 标准液压管路系统，安装维护便捷。通过调节先导压力设定机构，用户可轻松实现 5-35MPa 范围内的连续压力调整，满足不同设备的个性化需求。
该溢流阀注重环境适应性设计，内部流道经过精密加工和特殊表面处理，具有良好的抗污染能力和介质兼容性，可适配矿物油基、水乙二醇等多种液压介质。紧凑的外形尺寸与轻量化设计降低了空间占用，为设备布局提供更大灵活性。经过严格的出厂测试验证，产品在压力保持性、密封性能和重复精度等关键指标上表现优异。
【Pilot-operated Relief Valve DB20B Product Introduction】
The DB20B pilot-operated relief valve is a core component designed for hydraulic system pressure regulation, suitable for fluid control requirements in various industrial equipment and machinery. By integrating pilot valve and main valve mechanisms, this product achieves precise pressure adjustment and reliable system protection, featuring fast response, wide adjustment range, and stable operation to enhance overall hydraulic system performance.
With modular structure design and high-strength alloy steel construction, the valve ensures long-term durability under high-pressure conditions. Its key advantage lies in the rapid response to pressure fluctuations through pilot control circuits, which precisely limit maximum system pressure while minimizing energy loss. The multi-stage damping design optimizes pressure regulation characteristics, effectively reducing hydraulic shock and extending equipment service life.
This valve is widely applicable in hydraulic systems for construction machinery, metallurgical equipment, marine deck machinery, and other industrial fields, particularly suitable for scenarios requiring dynamic pressure compensation or frequent load variations. Offering multiple port connection options compatible with DIN standard hydraulic pipelines, it simplifies installation and maintenance. The adjustable pilot pressure setting mechanism enables continuous pressure regulation within 5-35MPa range to meet customized requirements.
Emphasizing environmental adaptability, the valve incorporates precision-machined flow channels and specialized surface treatments, demonstrating excellent contamination resistance and fluid compatibility with various media including mineral oil and water-glycol solutions. Compact dimensions and lightweight construction optimize space utilization for flexible equipment layout. Rigorous factory testing verifies outstanding performance in critical parameters such as pressure retention, sealing reliability, and operational repeatability.
