SPT/SPX Flow Sensor

SPT with Datasheet

These versatile impeller flowmeters are available in 3/8″, 1/2”, 3/4”, and 1″ nominal pipe sizes with female NPT threads. They employ jewel bearings to allow for very low minimum flow rates and superior life.

With a body material of polypropylene, SPX is an economical choice for metering water or low corrosion fluids. The lens cover is available in a choice of materials: acrylic for visual flow indica­tion of low-corrosion fluids; polypropylene when more corrosion resistance is needed. The standard rotor assembly is Kynar with tungsten carbide shaft. The O-ring is EPDM.

The SPT offers greater chemical resistance with a Teflon body and cover, Teflon-coated Viton O-ring, and standard Kynar/ceramic rotor assembly.


  • Versatile square wave signal connects to PLC’s, counters and Seametrics controls
  • Only one moving part
  • Replaceable non-wetted solid-state pickup
  • Wide flow range
Application NotesTypeLanguage
 SPT/SPX Flow Sensor-Datasheet pdf English US 488 KB