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VFLO Venturi Flowmeter with Magnehelic Gauge

Brand: Dwyer Instruments, LLC

The Series VFLO Venturi Flowmeter with Magnehelic® Gauge is fabricated from aluminum and has a gradual Venturi profile to reduce pressure losses through the meter. 

Flowmeter can be used in a vertical or horizontal position just by rotating the Magnehelic® gauge. 

The Magnehelic® gauge provides a large, clear and accurate display of your differential pressure reading. Each meter is calibrated at standard atmospheric conditions. The dual scale reads in SCFM and in w.c.

The meter is supplied with easy to read reference charts for various flow conditions. It is available in line sizes from 1" to 4" and can handle vacuum and pressure applications.
Features
  • Gradual Venturi profile reduces pressure losses through meter helping to insure a more accurate measurement to meet measurement specifications
  • Easy to read gauge through undistorted plastic face permits viewing from far away
  • Patented design provides quick response to pressure changes means no delay in assessing critical situations
  • Durable and rugged housing and high-quality components combined provides longservice life and minimized down-time

1 - 12 of 15 Part Numbers
2000-10VF1
2000-10VF1
  • Line Size - 1"
  • Range - 0 to 10 inches WC & 0 to 20 SCFM Air
2000-10VF2
2000-10VF2
  • Line Size - 1-1/2"
  • Range - 0 to 10 inches WC & 0 to 20 SCFM Air
2000-10VF3
2000-10VF3
  • Line Size - 2"
  • Range - 0 to 10 inches WC & 0 to 20 SCFM Air
2000-10VF4
2000-10VF4
  • Line Size - 3"
  • Range - 0 to 10 inches WC & 0 to 20 SCFM Air
2000-10VF5
2000-10VF5
  • Line Size - 4"
  • Range - 0 to 10 inches WC & 0 to 20 SCFM Air
2000-20VF1
2000-20VF1
  • Line Size - 1"
  • Range - 0 to 20 inches WC & 0 to 30 SCFM Air
2000-20VF2
2000-20VF2
  • Line Size - 1-1/2"
  • Range - 0 to 20 inches WC & 0 to 30 SCFM Air
2000-20VF3
2000-20VF3
  • Line Size - 2"
  • Range - 0 to 20 inches WC & 0 to 30 SCFM Air
2000-20VF4
2000-20VF4
  • Line Size - 3"
  • Range - 0 to 20 inches WC & 0 to 30 SCFM Air
2000-20VF5
2000-20VF5
  • Line Size - 4"
  • Range - 0 to 20 inches WC & 0 to 30 SCFM Air
2000-40VF1
2000-40VF1
  • Line Size - 1"
  • Range - 0 to 40 inches WC & 0 to 40 SCFM Air
2000-40VF2
2000-40VF2
  • Line Size - 1-1/2"
  • Range - 0 to 40 inches WC & 0 to 40 SCFM Air
1 - 12 of 15 Part Numbers

Specifications

Accuracy

  • ± 2.5 % of Full Scale

Enclosure Finish

  • Gray Coated to withstand 168-Hour Salt Spray Corrosion Test

Enclosure, Body Material

  • Acrylic Cover
  • Bezel
  • Die Cast Aluminum

Flow Rate

  • 0 to 675 scfm (0 to 1,147 m³/hour) - Air

Maximum System Pressure

  • psig: 35 (kPa: 240, bar: 2.4)

Media

  • Air
  • Non-Combustible, Compatible Gases

NPT Connection

  • 1” NPT Female
  • 1/8” NPT Female
  • 1-1/2” NPT Female
  • 2” NPT Female
  • 3” NPT Female
  • 4” NPT Female

Overpressure & Static Pressure Limits

  • psig: 25 (kPa: 172, bar: 1.72)

Pressure Range

  • Inches Hg: -20 to 0
  • Inches WC: 0 to 40

Sensor Orientation

  • Diaphragm in Vertical Position

Size

  • Dial: 4” (100 mm)
  • Line: 1” to 4”

Temperature Range

  • -6.67° to 60° C (20° to 140° F)

Wetted Materials

  • 300 Stainless Steel
  • Acrylic & Acrylic Paint
  • Alkyd Coating
  • Aluminum
  • Beryllium Copper
  • Brass
  • Commercial Black Rubber
  • Enamel Paint
  • Helsel FC
  • High Carbon Steel & Low Carbon Steel
  • Loctite AV Sealant
  • Neoprene
  • Nickel Alloy Steel Cover
  • Paper
  • Polycarbonate
  • PTFE
  • Samarium Cobalt
  • Silicone
  • Zinc Plate

  • Filter Monitoring
  • Air Velocity with Dwyer Pitot Tube
  • Blower Vacuum Monitoring
  • Fan Pressure Indication
  • Duct, Room or Building Pressures
  • Clean Room Positive Pressure Indication
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