米德USV-100
USV-100
USV-100提供了从一个单一的输入端口交替输出。该阀有两个选择交替输出一个脉冲，在空中信号输入端口。USV-100将无法正常运作与持续的信号。
行动
当压力施加到端口1，流动提供一个输出端口2通过阀门。当压力被释放，从端口1阀门的变动，所以，当压力未来应用在端口1，空气流通过端口3。再次推出的压力改变阀返回到原来的位置。因此，每一次压力应用，并释放到端口1，输出2和3的变化。注：空中信号必须用尽全力，使阀门适当的改变。
USV-100
The USV-100 provides alternating outputs from a single input port. The valve has two outputs which are selected alternately by applying a pulsing, on-off air signal to the input port. USV-100 will not function properly with a sustained signal.
Operation
When pressure is applied to port 1, it flows through the valve to provide an output at port 2. When the pressure is released from port 1, the valve changes over so that when pressure is next applied at port 1, air flows out through port 3. Release of the pressure again changes the valve back to its original position. Therefore, each time pressure is applied and released to port 1, outputs 2 and 3 change over. Note: The air signal must be fully exhausted to enable the valve to change over properly.
动力模型（USV-250）提供相同的二进制为100模型的功能，但此外，提供4路控制电源。它们是适用于双作用气缸的直接连接。USV-250采用了正反馈从输出，消除信号性能较差所造成的不正确的顺序操作
USV-250
Power models (USV-250) provide the same binary function as the 100 model but, in addition, offer full 4-way control power. They are suitable for direct connection to double-acting air cylinders. The USV-250 features a positive feed back from the outputs, eliminating incorrect sequential operation caused by poor signal performance.
