• Versatile square-wave signal connects to PLCs, counters & SeaMetrics controls
  • 0.07 to 40 GPM
  • 150 psi max
  • 160°F max
  • ±1% FS accuracy
  • 3/8 to 1in
  • Only one moving part
  • Sight flow indication
  • Replaceable non-wetted solid-state pickup


The versatile impeller flow meters in the Seametrics SP Series have a nominal pipe size of 3/8 to 1 inch.

The SP Series turbine flow meter employs jewel bearings for very low minimum flows. The 6-24 VDC pulse output of the SeaMetrics SP Series turbine flow meter is compatible with many different types of control, including a full range of Seametrics rate displays and controls. The FT420 provides flow rate and total flow, with 4-20 mA ouput.

The SPX model from the Seametrics SP Series turbine flow meter has a body made of polypropylene with transparent acrylic covers for visual flow indication. Polypropylene covers are available as an option. The SPT model is available standard with TFE housing, TFE cover, PVDF rotor, ceramic shaft, choice of o-ring material (EPDM or Viton), and optional silicon carbide shaft.

Features of the Seametrics SP Series Turbine Flow Meters

  • 18 foot standard cable
  • Standard acrylic top provides sight flow indication
  • 3/8 to 1in NPT ports machined into body
  • Removable thread-in sensor 12 VDC pulse
  • Jewel bearings for superior wear and flow range
  • Kynar rotor

Viton ® is a registered trademark of DuPont Performance Elastomers


This product can be used in the following applications:

Here's how some of our customers use this product...

Chemical Dosing

The Background: Our customer is an industrial water treatment facility that needs an accurate and reliable meter for dosing chemicals used in their treatment process.

The Problem: The facility needs a meter capable of making accurate measurements at low flow rates (~0.5 gpm). The meter must also be compatible with the chemicals they use.

The Solution: We recommended the Seametrics SP Series turbine meter which employs jewel bearings for very low minimum flows. The SP Series turbine flow meter is compatible with many different types of control including dosing and is available with a range of body, shaft, rotor and o-ring materials for chemical compatibility.

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