先导式溢流阀，DR20-30/31.5
产品概述
先导式溢流阀DR20-30/31.5是一种高性能液压控制元件，专为工业液压系统设计，适用于需要稳定压力控制的场合。该阀采用先导控制结构，通过主阀和导阀的协同工作实现精准压力调节，确保系统压力在31.5MPa范围内稳定输出。其通径为20mm，板式连接设计便于安装，适用于油介质环境，工作温度范围为常温至80℃。产品材质选用优质铸铁，密封材料为聚酯，具有耐磨损、寿命长的特点。138
技术特点
DR20-30/31.5采用先导式减压原理，主阀芯与导阀锥阀配合，通过阻尼孔和弹簧调节实现压力平衡。当系统压力超过设定值时，导阀开启，主阀芯在压差作用下移动，实现溢流功能。该阀具备低噪声、高响应速度的优势，且内流道铸造工艺优化了流通能力，流量可达600L/min。此外，阀体设计支持内排或外排控制油路，适配不同液压回路需求。产品广泛应用于机床、冶金、矿山等领域，可替代同类进口元件。21827
英文介绍（Product Description）
The pilot-operated relief valve DR20-30/31.5 is a precision hydraulic component designed for industrial systems requiring reliable pressure regulation. With a nominal diameter of 20mm and pressure capacity up to 31.5MPa, it ensures stable performance in oil-based hydraulic circuits. The valve features a two-stage design combining a main spool and pilot cone valve, which collaboratively maintain preset pressure levels by adjusting flow through damping orifices and spring mechanisms. Its cast iron body and polyester seals enhance durability under continuous operation.
英文技术参数（Technical Features）
The DR20-30/31.5 excels in high-flow applications with a maximum flow rate of 600L/min, while its low-noise design minimizes system vibration. The valve supports both internal and external control oil drainage options, offering flexibility for diverse hydraulic configurations. Its compact plate-mounted structure simplifies integration into existing systems. Ideal for machinery, metallurgy, and mining equipment, this valve delivers performance comparable to international counterparts. The operating temperature range spans from ambient to 80°C, ensuring adaptability in varied environments.31024
应用场景
该产品适用于液压系统中需溢流保护或压力稳定的环节，如注塑机、压铸设备及工程机械。其模块化设计便于维护，且无需特殊工具即可完成调试。用户可根据实际需求选择带单向阀或不带单向阀的配置，以满足不同回路的功能要求。131926
简单介绍
DR20-30/31.5 先导式溢流阀先导式减压阀 DR8-30/31.5M2V DR10-30/31.5M2V DR16-30/31.5M2V DR20-30/31.5M2V DR25-30/31.5M2V DR32-30/31.5M2V DR8G130/31.5 DR10G1 30/31.5 DR16G1 30/31.5 DR20G1 30/31.5 DR25G1
DR20-30/31.5 先导式溢流阀
的详细介绍
DR20-30/31.5 先导式溢流阀
先导式减压阀 DR8-30/31.5M2V DR10-30/31.5M2V DR16-30/31.5M2V DR20-30/31.5M2V DR25-30/31.5M2V DR32-30/31.5M2V DR8G130/31.5 DR10G1 30/31.5 DR16G1 30/31.5 DR20G1 30/31.5 DR25G1 30/31.5 DR32G1 30/31.5 DR8-30/31.5M2V DR10-30/31.5M2V DR16-30/31.5M2V DR20-30/31.5M2V DR25-30/31.5M2V DR32-30/31.5M2V DR8G130/31.5 DR10G1 30/31.5 DR16G1 30/31.5 DR20G1 30/31.5 DR25G1 30/31.5 DR32G1 30/31.5
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