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Dwyer USA Magnehelic Gauges 0 To 20 Inch WC

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Dwyer USA Magnehelic Gauges 0 To 20 Inch WC

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Dwyer USA Magnehelic Gauges 0 To 20 Inch WC Specification

Bourdon Tube
Not Used (Diaphragm Type)

Display
Analog

Outer Size
4 inches (101.6 mm) diameter

Seal Material
Silicone rubber

Grade
Industrial

Sensor Type
Diaphragm

Thread
1/8 NPT

Material
Die-cast aluminum case

Dial Material
Plastic

Pointer Material
Aluminum

Processing Type
Mechanical

Diameter
4 inches (101.6 mm)

Glass Size
4 inches

Mount Type
Surface or Flush Mount

Scale Range
0 to 20 inch WC (Water Column)

Accuracy
2% of Full Scale

Finishing
Corrosion-Resistant Finish

Measure Pressure Of
Air and non-corrosive gases

Accessories
Two 1/8 NPT fittings, three flush mounting adapters, and four 6-32 x 11/16 inch screws

Window Material
Clear acrylic

Zero Adjustment
External adjustment screw

Model
Magnehelic Gauge 0-20" WC

Overpressure Limit
Pressure up to twice the maximum range without damage

Connection Location
Back and bottom

Weight
Approximately 500 grams

Operating Temperature Range
-20°C to 60°C

IP Rating
IP20

Dwyer USA Magnehelic Gauges 0 To 20 Inch WC Trade Information

Payment Terms
Cash on Delivery (COD), Cash Against Delivery (CAD), Cash in Advance (CID), Cheque, Cash Advance (CA)

Main Export Market(s)
Australia, North America, Eastern Europe, Africa, Western Europe, Central America, Middle East, South America, Asia

Main Domestic Market
All India

About Dwyer USA Magnehelic Gauges 0 To 20 Inch WC

Dwyer USA Magnehelic Gauges 0 To 20 Inch WC

Model	Description
2020	Differential pressure gage, range 0-20" w.c., minor divisions .50.

The industry standard in indicating low air or gas pressures of positive, negative, or differential pressures.

Large, easy-to-read 4" (102 mm) dial.

No manometer fluid to evaporate, freeze, or cause toxic or leveling problems.

INCLUDES

Two 1/8" NPT plugs, two 1/8" rubber tubing adapters, and three mounting adapters with screws

MORE ABOUT THIS ITEM

The Magnahelic guage is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems, and pressures in fluid amplifier or fluidic systems. The gauge's motion is damped with high-viscosity silicone fluid. The zero adjustment screw is conveniently located in the plastic cover, and is accessible without removing the cover. O-ring seal provides pressure tightness. Rugged design resists shock, vibration, and overpressure.

The helix is precision-made from an alloy of high magnetic permeability. Mounted in jeweled bearings, it turns freely, following the maganetic field to move the pointer across the scale. The samarium cobalt magnet is mounted at one end of the range spring and rotates the helix without mechanical linkages.

Specifications & Description

Accuracy	±3% full-scale
Dial Size (in)	4
Dial Size (mm)	102
Min Pressure (in WC)	0
Max Pressure (in WC)	0.5
Min Temperature (° F)	20
Max Temperature (° F)	140
Min Temperature (° C)	7
Max Temperature (° C)	60
Liquid Fill	Silicone
Case	Aluminum
Lens Material	Polycarbonate
Process Connection	1/8" NPT(F)
Unit Of Measurement	" WC
Display	analog dial
Media Compatibility	Air and noncombustible, compatible gases
Description	Magnehelic Differential Pressure Gauge, 2020: 0-20" w.c

Robust Industrial-Grade Build

Crafted with a die-cast aluminum casing and a corrosion-resistant finish, this gauge is engineered to withstand demanding industrial conditions. The clear acrylic window and plastic dial enhance visibility and resilience, ensuring long-term reliable performance. Its IP20 rating guards against solid intrusions, making it suitable for protected indoor applications.

Versatile and Precise Measurement

Designed for measuring low differential pressures of air and non-corrosive gases, the Magnehelic Gauge offers a 0 to 20 inch WC scale with 2% full-scale accuracy. The diaphragm sensor and analog display deliver reliable real-time readings, while the external zero adjustment facilitates quick calibration for continued accuracy.

Flexible Mounting and Useful Accessories

The gauge supports both surface and flush mounting, accommodating various installation needs. It comes complete with two 1/8 NPT fittings, three flush mounting adapters, and four screws, providing everything required for seamless integration into existing systems. Its compact 4-inch diameter fits standard panels for versatile usage.

FAQs of Dwyer USA Magnehelic Gauges 0 To 20 Inch WC:

Q: How is the Dwyer USA Magnehelic Gauge 0-20" WC typically installed?

A: The gauge can be installed using surface or flush mounting methods. It includes all necessary accessoriestwo 1/8 NPT fittings, flush mounting adapters, and screwsto facilitate straightforward panel or wall integration.

Q: What types of substances can I measure with this Magnehelic Gauge?

A: This model is designed to measure differential pressure of air and non-corrosive gases only. It is not suitable for measuring pressures of corrosive gases or liquids.

Q: When should I use the external zero adjustment screw?

A: The external zero adjustment screw should be used periodically or after initial installation to recalibrate the gauge and maintain accuracy, especially if you notice a drift in the zero reading.

Q: Where is the connection port located on this gauge?

A: The Dwyer Magnehelic Gauge offers connection ports on both the back and bottom of the device. This design provides flexibility for different installation configurations to suit your system requirements.

Q: What process does the Magnehelic Gauge use to measure pressure?

A: This gauge utilizes a mechanical diaphragm sensor to detect differential pressure, which is then indicated on the analog dial. No electrical power is required for basic pressure measurement.

Q: How can using this gauge benefit my industrial application?

A: The Magnehelic Gauge provides accurate, real-time differential pressure readings, assisting in optimal operation and safety of HVAC systems, filtration units, and other air-handling equipment. Its mechanical reliability and low maintenance make it highly cost-effective for long-term monitoring.

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