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Dwyer 2020D Magnehelic Differential Pressure Gauge

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Dwyer 2020D Magnehelic Differential Pressure Gauge

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MOQ : 12 Pieces

Dwyer 2020D Magnehelic Differential Pressure Gauge Specification

Grade
Industrial

Sensor Type
Diaphragm

Seal Material
Silicone

Display
Analog

Outer Size
4 inch (101 mm) diameter case

Thread
1/8 NPT

Material
Aluminum case, polycarbonate or glass window, silicone diaphragm

Dial Material
Plastic

Pointer Material
Aluminum

Processing Type
Die-cast

Diameter
4 inch (101 mm)

Glass Size
4 inch round window

Mount Type
Surface or flush panel mount

Scale Range
0-0.5 to 0-60 in. H2O (varies by model; 2020D: 0-20 in. H2O)

Accuracy
2% of full scale

Finishing
Die-cast aluminum case finished in gray epoxy

Measure Pressure Of
Differential pressure of air and non-corrosive gases

Accessories
Two 1/8 NPT plugs, one with integral bleed, two 1/8 NPT pipe thread to rubber tubing adapters, and two flush mounting adapters with screws

Dwyer 2020D Magnehelic Differential Pressure Gauge Trade Information

Minimum Order Quantity
12 Pieces

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

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

Main Domestic Market
All India

About Dwyer 2020D Magnehelic Differential Pressure Gauge

Dwyer 2020D Magnehelic Differential Pressure Gauge

Dwyer Instruments 2020D

Magnehelic Pressure Gauge 0-20 in H2O, 0-5 kPa

Dual scale. Bezel provides flange for flush mounting in panel. Clear plastic face is highly resistant to breakage. Provides undistorted viewing of pointer and scale.

Dwyer 2020D MAGNEHELIC, DIFFERENTIAL PRESSURE GAUGE, 0 - 20, 0-5 KPA

Precision litho-printed scale is accurate and easy to read.

Red tipped pointer of heat treated aluminum tubing is easy to see. It is rigidly mounted on the helix shaft.

Pointer stops of molded rubber prevent pointer over-travel without damage.

"Wishbone" assembly provides mounting for helix, helix bearings and pointer shaft.

Jeweled bearings are shock-resistant mounted; provide virtually friction-free motion for helix. Motion damped with high viscosity silicone fluid.

Zero adjustment screw is conveniently located in the plastic cover, and is accessible without removing the cover. O-ring seal provides pressure tightness.

Helix is precision made from an alloy of high magnetic permeability. Mounted in jeweled bearings, it turns freely, following the magnetic field to move the pointer across the scale.

Samarium Cobalt magnet mounted at one end of range spring rotates helix without mechanical linkages.

Calibrated range spring is flat spring steel. Small amplitude of motion assures consistency and long life. It reacts to pressure on diaphragm. Live length adjustable for calibration.

Silicone rubber diaphragm with integrally molded O-ring is supported by front and rear plates. It is locked and sealed in position with a sealing plate and retaining ring. Diaphragm motion is restricted to prevent damage due to overpressures.

Die cast aluminum case is precision made and iridite-dipped to withstand 168 hour salt spray corrosion test. Exterior finished in baked dark gray hammerloid. One case size is used for all standard pressure options, and for both surface and flush mounting.

Blowout plug of silicone rubber protects against overpressure on 15 psig rated models. Opens at approximately 25 psig.

O-ring seal for cover assures pressure integrity of case.

What's included with the Dwyer 2020D

Dwyer 2020D Magnehelic Differential Pressure Gauge (0-20"w.c. & 0-5 kPa)

Reliable Pressure Monitoring for Industrial Applications

Engineered for air and non-corrosive gases, the Dwyer 2020D Magnehelic Gauge excels in filter monitoring, fan control, and cleanroom pressure measurement. Its robust construction and clear analog display ensure accuracy and long service life under demanding industrial conditions.

Durable Construction and Simple Installation

Featuring a die-cast aluminum case and shatterproof window, this gauge is built for durability. The package includes essential mounting adapters and plugs, making both surface and flush installation straightforward and secure for professionals.

FAQs of Dwyer 2020D Magnehelic Differential Pressure Gauge:

Q: How do I install the Dwyer 2020D Magnehelic Differential Pressure Gauge?

A: The gauge can be surface or flush-mounted using the included adapters and screws. Connect the high and low pressure taps (1/8" NPT female) to your systems ports and ensure proper alignment for vertical mounting. Detailed instructions are provided in the manual.

Q: What types of media can this gauge measure?

A: The Dwyer 2020D is designed to measure the differential pressure of air and non-corrosive gases, making it ideal for HVAC systems, filter monitoring, and other clean environmental applications.

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

A: Use the external zero adjustment screw during installation or routine maintenance to recalibrate the gauge and ensure measurement accuracy, especially after it has been transported or subject to environmental changes.

Q: Where is the Dwyer 2020D commonly used?

A: Common applications include monitoring air filters, controlling ventilation fans, checking duct static pressure, and ensuring proper conditions in cleanrooms. Its versatility makes it suitable for a wide range of industrial and commercial settings.

Q: What benefits does the shatterproof transparent window provide?

A: The shatterproof window, made from polycarbonate or glass, protects the dial and internal mechanisms from accidental impacts, ensuring long-term reliability and clear visibility of readings in demanding industrial environments.

Q: How does the gauge protect against overpressure?

A: The gauge features overpressure protection up to 15 psi, safeguarding the sensitive diaphragm and internal components from accidental system surges and prolonging the devices operational lifespan.

Q: What accessories are included with the 2020D model?

A: The 2020D comes with two 1/8" NPT plugs (one with integral bleed), two pipe thread to rubber tubing adapters, and two flush mounting adapters with screws, facilitating varied installation options and secure connections.

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