Flow Verification Sensor (FVS)

Designed to monitor pump output
The pump’s electronics will continuously monitor the Micro-Flo FVS to ensure chemical injection.
Clear lens; visual indication of chemical injecting
Designed for Diaphragm and Peristaltic Pumps.

Micro-Flo – Flow Verification Sensor (FVS)

  • Detect a clogged injector.
  • Detect an empty chemical supply tank.
  • Detect a lost prime condition.
  • No special connectors to buy.
  • No calibration required.
  • Six flow ranges available. Refer to Data Sheet.
  • Easy three wire connection made in the pumps junction box.

Flow verification Sensor installs directly to Blue-White pump model series:

Max. Working pressure:

PVC lens 130 psig (9 bar) @ 70°F (21°C)
PVDF lens 150 psig (10 bar) @ 70°F (21°C)

Max. Fluid Temperature:

PVC lens, F/NPT connectors 130°F (54°C) @ 0 psig
PVDF lens, tubing connectors 200°F (93°C) @ 0 psig

Full Scale Accuracy:

+/- 6%

Sensor/ Paddle / Axel Material:


Connector Material:

F/NPT connections PVC
M/NPT connections PVC
Hose barb connections PVC
Tubing connectors PVDF (3/8″), Polypro (1/4″)

Viewing Lens Material Option:

Clear see through: PVC

O-Ring Seals:

FKM (Optional EP)

Approx. Shipping Weight:

1 lb. (.45 Kg)


FVS without Fittings

  • Flow can go either direction
  • Overall height dimension = 2.125″

FVS - No Fittings

FVS with 3/8″ Compression Tube Fittings

  • For 3/8″ tube connection
  • Flow can go either direction
  • PVDF (Kynar) tube fittings
  • Overall height dimension = 2.125″

FVS - M/NPT Fittings

FVS with 1/4″ Female NPT Fittings

  • For 1/4″ NPT connections
  • Flow can go either direction
  • PVC fittings
  • Overall height dimension = 2.125″

FVS - F/NPT Fittings

Tech. Data Sheet (PDF) (PN 85000-061)

Instruction Manual (PDF) (PN 80000-402)

Wiring Instructions (PDF) (PN 81000-311)

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