SPI

Stem Position Indicator
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Stem Position Indicator (SPI)

The Teledyne LeCroy Test Services (TLTS) Stem Position Indicator (SPI) provides the valve tester with a convenient means to accurately measure valve stem position. This custom “string pot” has a magnetic base and a variable orientation to allow the user to properly adapt to a variety of valve bodies and actuators including MSIVs, AOVs and MOVs. The SPI provides a calibrated signal for input to the QUIKLOOK Data Acquisition Systems as well as the AOV Pressure Sensor Interface box.

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