DA-20/先导式卸荷阀DA20
产品概述
DA-20先导式卸荷阀（Pilot-operated Unloading Valve DA20）是一款高效液压控制元件，专为液压系统中的压力调节与卸荷需求设计。其核心功能是通过先导控制实现主阀芯的精准动作，从而在系统压力达到设定值时自动卸荷，降低能耗并延长泵的使用寿命。该阀采用模块化设计，适配多种液压回路，尤其适用于蓄能器系统或高低压泵组合工况，能有效平衡系统压力波动，确保稳定运行。
技术特点
DA-20阀体采用高强度铸铁材质，内部结构集成单向阀与先导控制单元，实现卸荷与安全保护双重功能。其先导控制油路通过阻尼器调节响应速度，确保切换过程平稳无冲击。工作压力范围覆盖常规液压需求，最大流量可达240L/min，介质兼容矿物油与磷酸酯液压油，适用温度范围为-20℃至+70℃。阀体提供多种调节形式，包括旋钮、带护罩螺钉及刻度旋钮，便于现场压力微调。
应用场景
该阀广泛应用于冶金、工程机械、机床等领域的液压系统。在蓄能器回路中，可实现泵的自动卸荷；在高低压泵系统中，可切换高压泵工作、低压泵卸荷，优化能源效率。其紧凑的板式连接设计适配标准安装接口，支持油路块或底板安装，简化系统集成。
产品优势
DA-20以可靠性为核心，通过优化流道设计减少压力损失，同时内部密封材料选用耐磨聚酯，确保长期密封性。其先导控制结构显著降低主阀启闭噪音，适用于对噪音敏感的环境。此外，阀体维护便捷，无需专用工具即可完成关键部件更换。
Product Introduction
The DA-20 Pilot-operated Unloading Valve is a high-performance hydraulic control component designed for pressure regulation and unloading in hydraulic systems. Its pilot-controlled mechanism ensures precise main spool operation, automatically unloading when system pressure reaches the set value, thereby reducing energy consumption and extending pump service life. The modular design adapts to diverse hydraulic circuits, particularly in accumulator systems or high-low pump configurations, effectively balancing pressure fluctuations.
Key Features
Constructed with durable cast iron, the valve integrates a check valve and pilot control unit for dual unloading and safety functions. The pilot circuit features dampers for smooth switching response. With a maximum flow rate of 240L/min, it supports mineral oil and phosphate ester fluids within -20℃ to +70℃. Multiple adjustment options (knob, shielded screw, or dial) facilitate on-site pressure calibration.
Applications
Ideal for metallurgy, construction machinery, and machine tools, the valve enables pump unloading in accumulator circuits or optimizes energy use in dual-pump systems. Its compact flange connection complies with standard interfaces, simplifying integration via manifold or baseplate mounting.
Advantages
The DA-20 emphasizes reliability with low-pressure-drop flow paths and wear-resistant polyester seals. Its pilot structure reduces operational noise, suitable for noise-sensitive environments. Maintenance is simplified with tool-free access to critical components.
567121922
简单介绍
DA20 先导式卸荷阀先导型电磁卸荷阀DA10…/… DA20…/… DA30…/… DAW10…/… DAW20…/… DAW30…/…
DA-20/先导式卸荷阀DA20
DA20 先导式卸荷阀
的详细介绍
DA20 先导式卸荷阀
顺序阀
X-B10(B) X-B25(B) X-B63(B)
DZ10…/…YM DZ20…/…YM DZ30…/…YM DZ10…/…Y DZ20…/…Y DZ30…/…Y DZC…/… DZC10,30…/…
X3F-B20H-S X3F-B10H-S X2F-B10H-S X4F-B10H-S X2F-B20H-S
单向阀
S6A S8A S10A S15A S20A S25A S30A S10P1 S20P1 S30P1
1-10 1-25 1-63 1-100 1-160
A-F6D-O-1 2A-F6D-O/AB A-F10D-P/PP1 A-F10D-B/P A-F10D-P A-F16D-O A-F20D-O
液控单向阀
AY-F6D-B(A)-1 2AY-F6D-AB(BA)-A AY-F10D-B(A)-1 2AY-F10D-AB(BA)-1 AY-F16D-B(A)-1
2AY-F16D-AB/BA-1 AY-F20D-B(A)-1 2AY-F20D-AB/BA-A AYE-F10-B/O(P)
板式单向阀
RVP6 RVP8 RVP10 RVP12 RVP16 RVP20 RVP25 RVP30
液控单向阀
Z1S6 Z1S10 Z2S6 Z2S10 Z2S16 Z2S22
先导型电磁卸荷阀
DA10…/… DA20…/… DA30…/… DAW10…/… DAW20…/… DAW30…/…
节流阀
MK/MG6… MK/MG8… MK/MG10… MK/MG15… MK/MG20… MK/MG25… MK/MG30…
DV6/2 DV8/2 DV10/2 DV12/2 DV16/6 DV20 DV30 DVP6 DVP8 DVP10 DVP12 DVP16 DVP20 DVP25 DVP30
AL-D6B L-D6B L-D10B AL-D10B
叠加式单向节流阀
Z2FS6 Z2FS10… Z2FS16 Z2FS22…
节流截止阀
DRVP6 DRVP8 DRVP10 DRVP12 DRVP16 DRVP20 DRVP25 DRVP30 DRV6 DRV8 DRV10 DRV12 DRV16 DRV20 DRV25 DRV30
欢迎光临上海双旭电子有限公司 接近开关 漆膜测厚仪 照度计 超声波测厚仪
|
