Dwyer Series VFLO Venturi Flow Meter with Magnehelic® Gage

 Venturi in-line indicators for flow rate. The Magnehelic® gage provides a large, clear and accurate display of your differential pressure reading. It is available in line sizes from 1" to 4" and can handle vacuum and pressure applications. Other applications include filter monitoring, clean room positive pressure indication, and fan pressure indication.

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

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

Application

• 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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Specification

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.
Weight	Gage only: 1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g)

Download Data Sheet: Series VFLO Venturi Flow Meter with Magnehelic® Gage

Ref: dwyer-inst.com