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These versatile impeller flowmeters are availalble 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. The SPX, with a polypropylene body, 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. 

The pulse output of these meters is compatible with many different types of controls, including a full range of Seametrics rate displays and controls. The Seametrics FT430 and FT440 provide flow rate and total flow indication. The FT440 also includes 4-20 mA output capability. The FT450 is a battery-operated rate & total display.
Features
  • Low flow meter in PTFE Teflon for maximum chemical resistance
  • 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

Specifications

Connection Ports

  • 3/8”, 1/2”, 3/4”, 1” —Female NPT thread

Sensor Cable

  • 18 ft (6 m) standard—maximum cable run 2000 ft (607 m)

Body

  • TFE Teflon

Rotor

  • PVDF (Kynar®)—2 magnet (6 magnet high resolution optional)

Shaft

  • Zirconia ceramic (silicon carbide optional)

O-Ring

  • Teflon-coated Viton (Viton or EDPM optional)

Bearings

  • Ruby ring and ball

Cover

  • TFE Teflon

Maximum Temperature

  • 180° F (82° C)

Maximum Pressure

  • 150 psi (10 bar)

Accuracy

  • ± 1 % of full scale

Standard

  • 6-36 Vdc, 2 mA min

Micropower

  • 3.1-16 Vdc (for use with FT450 and DL76 only)

Outputs

  • Current sinking pulse, 6-24 Vdc

Documentation

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