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F-451

Polysulfone Flow Meter

The F-451 Series Flow Meters offer excellent accuracy and repeatability, combined with a durable injection molded polysulfone meter body and connectors, and #316 stainless steel internal parts. Half unions couple the meter body to the connectors at each end of the flow meter. This configuration facilitates both installation and maintenance.

Technical Overview:

GPM
.5 - 40
LPM
2 - 155
PSI
150
Bar
10.3
Fahrenheit (°F)
212
Celsius (°C)
100
Body Material
Polysulfone
Pipe Sizes
1” F/NPT (Polysulfone), 1½” F/NPT (PVC)
Literature
3D Visualizer

Features

  • Polysulfone meter body resists high temperatures and pressures.
  • 316 SS, or PTFE rod-guided float.
  • Direct reading permanent scale.
  • Not recommended for direct sunlight.
  • Available OEM options: Private labeling, custom calibrations, and custom materials.
  • In-Line (vertical) mount only.
  • Polycarbonate shield available. (Optional accessory).
Adapter Options
  • 1” and 1-1/2” Inline units.
  • 1” M/NPT panel mount units.
  • 1” F/NPT and 1” sweat brass units.
What’s Included:
  • Flowmeter x1
  • Instruction Manual

Specifications

Max. Working Pressure:
  • 150 psig (10.3 bar) @ 70° F (21° C)
Max. Fluid Temperature:
  • Standard Models, 1” pipe: 212° F (100° C) @ 0 PSI
  • Standard Models, 1½” pipe: 130° F (54° C) @ 0 PSI
Full Scale Accuracy:
  • +/- 3%
Meter Body Material:
    Polysulfone
Adapter Material:
  • Standard Models, 1” pipe: Polysulfone
  • Standard Models, 1½” pipe: PVC
Union Nuts:
  • Glass fiber reinforced Nylon
Guide Rod Material:
  • 316 SS
O-ring Material:
  • FKM
Max Pressure Drop:
  • 2 PSI
Approx. Shipping Weight:
  • 3 lb. (1.36 kg)

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Meter Ranges

Standard Series:

Equipped with 316 SS guide rod

Pipe Size GPM LPM Float Material Model
1″ .5 to 6 2 to 22 Teflon F-451006LHN
1-1/2″ .5 to 6 2 to 22 Teflon F-451006LHN-24
1″ 1.0 to 10 4 to 40 316 SS F-451001LHN
1-1/2″ 1.0 to 10 4 to 40 316 SS F-451001LHN-24
1″ 2.0 to 20 6 to 76 316 SS F-451002LHN
1-1/2″ 2.0 to 20 6 to 76 316 SS F-451002LHN-24
1″ 3.0 to 30 12 to 115 316 SS F-451003LHN
1-1/2″ 3.0 to 30 12 to 115 316 SS F-451003LHN-24
1″ 4.0 to 40 15 to 155 316 SS F-451004LHN
1-1/2″ 4.0 to 40 15 to 155 316 SS F-451004LHN-24

Accessories

Replacement Parts

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Downloads

Title
F-451 Exploded View Diagram

414.20 KB February 8, 2022
F-451 Instruction Manual – 80000-247

1,013.40 KB May 16, 2024
F-451 Replacement Parts List

471.41 KB February 10, 2022
F-451 Technical Data Sheet – 85000-036

216.34 KB April 15, 2024
Industrial Catalog 2024 – 80000-707

17.00 MB May 6, 2024
Industrial Products Brochure

2.84 MB February 20, 2024
Municipal Products Brochure

2.98 MB February 14, 2024
Polysulfone Flow Meter Quick Start Guide – 80000-703

435.18 KB June 14, 2024
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