Proportional directional valves are used in pneumatics and hydraulics to release or block the flow for compressed air or hydraulic fluid or to change the flow direction. They are usually indispensable final control elements in servo-pneumatic positioning systems.
The Festo proportional directional valve MPYE is a controlled piston spool valve that can be actuated in analogue mode. It has a position-controlled spool and can be combined with a position controller and a displacement encoder to create a precise pneumatic positioning system. Thanks to the throttle function for varying the cylinder speed and a 5/3-way function for varying the direction of movement, you can customise the MPYE to suit your needs. This proportional directional valve has flow rates of 100...2000 l/min.
比例方向控制阀 VPWP 也是受控活塞滑阀，但不是模拟受控，而是数字受控运行。VPWP 的特点在于集成有压力传感器，这些传感器具有监测功能，能够可靠地确保正确的力控制。此外，还有自动识别、诊断功能和集成的数字输出端（例如用于夹持或制动单元）等特点。在气伺服应用中，VPWP 几乎普遍与 CPX-CMAX 轴控制器和 CPX-CMPX 终端位置控制器搭配使用。
The proportional directional valve VPWS is our compact and powerful new development. The VPWS is an extremely lightweight 15 mm cartridge valve with a large flow rate. As a directly controlled poppet valve, the VPWS regulates gas flows safely and precisely, whether it's oxygen, carbon dioxide, air, nitrous oxide or inert. Please note, however, that the VPWS does not include redundancy and error detection. The VPWS is mounted on a sub-base.