4A220-08二位五通双气控阀
产品概述
4A220-08二位五通双气控阀是一种专为气动系统设计的换向控制元件，采用内部先导式结构，适用于驱动气缸或控制气动回路的方向切换。该阀体材质为铝合金，具有轻量化、耐腐蚀的特点，公称通径为PT1/4（G1/4），工作压力范围0.15~0.8MPa，可在5~50℃的环境温度下稳定运行。其双向流动设计支持高效的介质传输，适用于过滤后的空气介质，无需额外润滑。阀体采用螺纹连接形式，便于安装与维护，广泛应用于自动化设备、工业机械等领域。169
功能特点
4A220-08双气控阀的核心功能是通过气压信号控制阀芯位移，实现气路的快速切换。其滑柱式结构结合特殊工艺加工的阀孔，确保密封性能优异且摩擦阻力小，响应灵敏。双气控设计赋予其记忆功能，即阀芯位置可通过气控信号保持，无需持续供压。此外，该阀支持集成阀组安装，节省空间，并能适应频繁动作需求（最高频率达4次/秒）。排气口可选配消声节流阀以降低噪音。91119
技术参数
产品工作介质为经40微米过滤的干燥空气，有效截面积16.0mm²（CV值0.89），最短启动时间0.05秒。接口配置包括1个进气口（P）、2个工作口（A/B）和2个排气口（R/S），其中主接口螺纹为RC1/4，排气口为RC1/8。阀体耐压上限为1.2MPa，适应-5~60℃的环境温度。产品重量约0.225kg，紧凑的设计使其适用于空间受限的应用场景。71419
应用场景
该阀适用于双向气缸控制、气动夹具、包装机械及自动化生产线等场景，尤其在需要稳定换向与记忆功能的系统中表现突出。例如，在驱动双作用气缸时，可通过双气控信号实现活塞杆的伸缩定位。其耐压与耐温特性也使其适用于一般工业环境，但需避免油污、粉尘或腐蚀性气体直接影响阀体性能。6912
Product Overview
The 4A220-08 5/2-way double pilot operated valve is a directional control component designed for pneumatic systems. Featuring an internally piloted structure and aluminum alloy body, it offers lightweight and corrosion-resistant properties. With a nominal diameter of PT1/4 (G1/4) and operating pressure range of 0.15~0.8MPa, it functions reliably in environments from 5~50℃. The bidirectional flow design ensures efficient air transmission, suitable for filtered air without lubrication. Threaded connections facilitate easy installation, making it ideal for automation and industrial machinery.16
Key Features
This valve utilizes pneumatic signals to shift spool positions, enabling rapid circuit switching. Its spool-type structure with precision-machined bores delivers excellent sealing and low friction, ensuring responsive performance. The dual-pilot design provides memory function, maintaining spool position without continuous pressure. Compact for space-saving setups, it supports high-frequency operations (up to 4 cycles/sec) and optional exhaust silencers for noise reduction.919
Technical Specifications
Operating with 40μm filtered dry air, the valve has an effective flow area of 16.0mm² (CV 0.89) and a minimum activation time of 0.05s. Ports include 1 inlet (P), 2 outlets (A/B), and 2 exhausts (R/S), with RC1/4 main threads and RC1/8 exhaust threads. Maximum pressure resistance is 1.2MPa, and operating temperature ranges from -5~60℃. Weighing approximately 0.225kg, its compact design suits space-constrained applications.714
Applications
Widely used in bidirectional cylinder control, pneumatic clamps, packaging machines, and automated lines, the valve excels in systems requiring stable switching and memory retention. For instance, it precisely controls double-acting cylinders via dual-pilot signals. Its pressure and temperature tolerance adapts to general industrial conditions, though direct exposure to oil, dust, or corrosive gases should be avoided.612
4A220-08二位五通双气控阀
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