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Dwyer USA Magnehelic Gauges 3-0-3 MM WC

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Dwyer USA Magnehelic Gauges 3-0-3 MM WC Specification

Grade
Industrial

Outer Size
4 inches (approx. 100 mm)

Sensor Type
Differential Pressure

Seal Material
Silicone Rubber

Thread
Standard Mounting Holes

Display
Analog

Material
Die-cast Aluminum Case

Dial Material
Aluminum with Printed Scale

Pointer Material
Balanced Aluminum Pointer

Processing Type
Precision Moulded

Diameter
4 inches (approx. 100 mm)

Glass Size
4 inches (approx. 100 mm)

Mount Type
Surface or Flush Mount

Scale Range
3-0-3 mm WC (Water Column)

Accuracy
2% of Full Scale

Finishing
Powder-coated metallic finish

Measure Pressure Of
Low Air or Non-Corrosive Gases

Accessories
Two 1/8 NPT plugs, mounting screws, and instruction sheet

Mounting Orientation
Vertical Only

Temperature Range
-7C to +60C

Weight
Approx. 500 g

Overpressure Limit
Up to 10 psi (standard)

Connection Type
Dual 1/8" NPT Female

Model
Magnehelic Gauge 3-0-3 mm WC

Application
HVAC, Cleanroom Monitoring, Air Velocity, Filter Status

Window Material
Clear Acrylic

Ingress Protection
IP54

Dwyer USA Magnehelic Gauges 3-0-3 MM WC Trade Information

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

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

Main Domestic Market
All India

About Dwyer USA Magnehelic Gauges 3-0-3 MM WC

Dwyer USA Magnehelic Gauges 3-0-3 MM WC

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	±2% full-scale
Dial Size (in)	4
Dial Size (mm)	102
Min Pressure (in WC)	0
Max Pressure (in WC)	10
Wetted Materials	Aluminum
Case	Aluminum
Lens Material	acrylic
Process Connection	1/8" NPT
Unit Of Measurement	" WC
Display	analog dial
Media Compatibility	Gases and liquids compatible with wetted materials
Resolution	0.20
Description	Magnehelic Differential Pressure Gauge, Type , 3-0-3 MM WC

Reliable Differential Pressure Sensing

The Dwyer Magnehelic Gauge is trusted in industrial and cleanroom environments for its consistent, analog differential pressure readings. Its 2% full-scale accuracy ensures you can monitor air pressure or filter status efficiently, minimizing downtime and maintaining compliance with safety standards.

Built for Durability and Versatility

Featuring a precision-moulded, die-cast aluminum case and powder-coated finish, this gauge is designed to last in harsh industrial conditions. The clear acrylic window and powder-coated body withstand regular wear, while silicone rubber seals and balanced aluminum pointers guarantee robust performance over time.

Easy Installation and Mounting Options

With its surface or flush mounting versatility and included accessories, the Magnehelic Gauge is quick to install on HVAC panels, cleanrooms, or process lines. Dual 1/8" NPT female connections and standard mounting holes make integration into existing systems straightforward, ensuring reliable process monitoring from day one.

FAQs of Dwyer USA Magnehelic Gauges 3-0-3 MM WC:

Q: How is the Magnehelic Gauge 3-0-3 mm WC installed?

A: The gauge can be installed via surface or flush mounting using the provided mounting screws. It must be oriented vertically for accurate readings. Dual 1/8" NPT female connections enable straightforward attachment to pressure sources.

Q: What is the primary application for this differential pressure gauge?

A: This gauge is ideal for measuring low air or non-corrosive gas pressure in HVAC systems, cleanroom monitoring, air velocity assessments, and filter status tracking in industrial settings.

Q: When should I use the Magnehelic Gauge instead of a digital pressure gauge?

A: The Magnehelic Gauge is preferable when you require simple, reliable, analog indication of differential pressure without the need for electrical powerespecially in environments prioritizing durability and cost-effectiveness.

Q: Where should this gauge be mounted for best performance?

A: Mount the gauge vertically on a clean, vibration-free surface such as an HVAC control panel, air handling unit, or cleanroom wall, ensuring clear visibility and accessibility for maintenance.

Q: What steps are involved in the gauge measurement process?

A: After secure mounting and connecting the gauge via the NPT female ports, apply air or non-corrosive gas pressures to the ports. The analog pointer will indicate the differential pressure on the printed aluminum scale.

Q: How does the IP54 rating benefit my application?

A: The IP54 ingress protection ensures the gauge is shielded against dust ingress and water splashes, enhancing reliability in demanding industrial or laboratory environments.

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