Series VFLO Venturi Flowmeter with Magnehelic® Gage
±2.5% Accuracy, Dual Scale in SCFM & in w.c.
The Series VFLO Venturi Flowmeter with Magnehelic® Gage 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® gage. The Magnehelic® gage 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.
To place an order for the Venturi Flowmeter with Magnehelic® Gage, see the Magnehelic® Configurator.
Product Applications
- Filter monitoring
- Air velocity with Dwyer pitot tube
- Blower vacuum monitoring
- Fan pressure indication
- Duct, room or building pressures
- Clean room positive pressure indication
Models & Ordering
Specifications
- Service:
- Air and non-combustible, compatible gases.
- Wetted Materials:
- Aluminum, silicone, acrylic, polycarbonate, high carbon steel, low carbon steel, brass, paper, acrylic paint, enamel paint, alkyd coating, nickel plate, zinc plate, helsel FC, 300 series stainless steel, PTFE, Loctite® AV sealant, commercial black rubber, neoprene, samarium cobalt, nickel alloy steel cover, beryllium copper.
- Housing:
- Die cast aluminum case and bezel, with acrylic cover. Exterior finish is coated gray to withstand 168 hour salt spray corrosion test.
- Accuracy:
- ±2.5% FS.
- Pressure Limits:
- -20" Hg to 15 psig (-0.677 bar to 1.034 bar); MP option: 35 psig (2.41 bar). For applications with high cycle rate within gage total pressure rating, next higher rating is recommended.
- Overpressure:
- Relief plug opens at approximately 25 psig (1.72 kPa).
- Temperature Limits:
- 20 to 140°F (-6.67 to 60°C).
- Size:
- 4" (101.6 mm) diameter dial face.
- Mounting Orientation:
- Diaphragm in vertical position. Consult factory for other position orientations.
- Process Connection:
- Female NPT of nominal line size. See Model Chart page.
- Weight:
- Gage only: 1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g); Venturi: see Model Chart page.
Features
- Gradual Venturi profile reduces pressure losses through meter helping to insure a more accurate measurement to meet measurement specifications
- Easy to read gage 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
Accessories
| Model Number | Description | Usually Ships* | Price | Order | |
|---|---|---|---|---|---|
 |
MVB-LM1 | Mini Brass Ball Valve, lever handle, 450 psi, 1/8" | Same Day | $5.20 | Order |
 |
MVB-WM1 | Mini Brass Ball Valve, wedge handle, 450 psi, 1/8" | Same Day | $5.20 | Order |
 |
MVB-TM1 | Mini Brass Ball Valve, tee handle, 450 psi, 1/8" | Same Day | $5.20 | Order |
Model Chart
| Model | Range | Line Size |
Weight |
| 2000-10VF1 2000-20VF1 2000-40VF1 |
0-10" w..c & 0-20 SCFM air 0-20" w.c. & 0-30 SCFM air 0-40" w.c. & 0-40 SCFM air |
1" 1" 1" |
3 (1.36) 3 (1.36) 3 (1.36) |
| 2000-10VF2 2000-20VF2 2000-40VF2 |
0-10" w.c. & 0-50 SCFM air 0-20" w.c. & 0-70 SCFM air 0-40" w.c. & 0-100 SCFM air |
1-1/2" 1-1/2" 1-1/2" |
4.5 (2.04) 4.5 (2.04) 4.5 (2.04) |
| 2000-10VF3 2000-20VF3 2000-40VF3 |
0-10" w.c. & 0-85 SCFM air 0-20" w.c. & 0-120 SCFM air 0-40" w.c. & 0-160 SCFM air |
2" 2" 2" |
6 (2.72) 6 (2.72) 6 (2.72) |
| 2000-10VF4 2000-20VF4 2000-40VF4 |
0-10" w.c. & 0-200 SCFM air 0-20" w.c. & 0-290 SCFM air 0-40" w.c. & 0-395 SCFM air |
3" 3" 3" |
11 (4.99) 11 (4.99) 11 (4.99) |
| 2000-10VF5 2000-20VF5 2000-40VF5 |
0-10" w.c. & 0-350 SCFM air 0-20" w.c. & 0-500 SCFM air 0-40" w.c. & 0-675 SCFM air |
4" 4" 4" |
18 (8.16) 18 (8.16) 18 (8.16) |
Product Literature
Manuals
Catalog Pages
Drawings
Photo Downloads
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