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Dwyer 2220 Magnehelic Differential Pressure Gauge 0-20 PSI

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Dwyer 2220 Magnehelic Differential Pressure Gauge 0-20 PSI

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MOQ : 12 Pieces

Dwyer 2220 Magnehelic Differential Pressure Gauge 0-20 PSI Specification

Thread
1/8 NPT (F) high and low pressure connections

Sensor Type
Mechanical diaphragm

Grade
Industrial

Outer Size
Standard case size 4 (101 mm) diameter

Seal Material
Silicone rubber

Display
Analog dial

Material
Die-cast aluminum case, acrylic lens

Dial Material
Acrylic

Pointer Material
Aluminum

Processing Type
Precision engineered

Diameter
4 inch (101 mm)

Glass Size
Fits 4 inch dial

Mount Type
Flush or surface mount

Scale Range
0-20 PSI

Accuracy
2% of full scale

Finishing
Corrosion-resistant black epoxy coating

Measure Pressure Of
Air and non-combustible, compatible gases

Accessories
Mounting hardware, instruction manual

Operating Temperature Range
-7°C to +60°C (20°F to 140°F)

Ingress Protection
Front dust resistant

Window Material
Clear acrylic

Maximum Pressure
30 PSI (2.07 bar)

Weight
0.71 kg (1 lb 9 oz)

Overpressure Protection
To maximum rating without calibration shift

Zero Adjustment
External screw adjustment

Model
2220

Response Time
Immediate (mechanical movement)

Pressure Connection Materials
Brass

Mounting Orientation
Vertical preferred

Dwyer 2220 Magnehelic Differential Pressure Gauge 0-20 PSI Trade Information

Minimum Order Quantity
12 Pieces

Payment Terms
Delivery Point (DP), Letter of Credit (L/C), Paypal, Cash on Delivery (COD), Cash Against Delivery (CAD), Cash Advance (CA), Telegraphic Transfer (T/T), Cheque

Sample Policy
If order is confirmed we will reimburse the sample cost

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

Main Domestic Market
All India

About Dwyer 2220 Magnehelic Differential Pressure Gauge 0-20 PSI

Dwyer 2220 Magnehelic Differential Pressure Gauge 0-20 PSI

Model: 2220 Differential Pressure Gage,Range 0-20 PSI,Minor Divisions .50,MP Option Standard.

Bezel provides Flange For Flush Mounting in Panel. Clear Plastic Face is Highly Resistant to Breakage. Provides Undistorted Viewing of Pointer and Scale.

Dwyer 2220 MAGNEHELIC, DIFFERENTIAL PRESSURE GAUGE, 0-20 PSI

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.

Precision Differential Pressure Measurement

Engineered for accuracy, the Dwyer 2220 Magnehelic Gauge delivers immediate and reliable readings for pressures up to 20 PSI. Its mechanical diaphragm ensures a prompt response, making it suitable for monitoring air and compatible gases in demanding industrial environments. The analog display features high legibility and straightforward operation.

Rugged Construction for Industrial Applications

Built with a corrosion-resistant die-cast aluminum case and a clear acrylic window, this gauge is designed to withstand rigorous conditions. Overpressure protection up to its maximum rating ensures reliability and safety without compromising calibration, while the brass pressure connections and silicone rubber seal provide leak-proof performance.

Flexible and Convenient Installation

Designed for easy mounting in vertical orientation, the Dwyer 2220 can be flush or surface mounted for adaptability in various setups. The 1/8 NPT brass connections and supplied mounting hardware make installation straightforward, while the external zero adjustment simplifies calibration maintenance.

FAQs of Dwyer 2220 Magnehelic Differential Pressure Gauge 0-20 PSI:

Q: How do I install the Dwyer 2220 Magnehelic Differential Pressure Gauge?

A: To install the Dwyer 2220, mount the gauge vertically using either the supplied flush or surface mounting hardware. Make connections to the high and low pressure ports using 1/8 NPT (F) brass fittings. Ensure you are measuring air or non-combustible, compatible gases only.

Q: What is the operating temperature range for this gauge?

A: The Dwyer 2220 Magnehelic Differential Pressure Gauge operates reliably in environments from -7C to +60C (20F to 140F), making it suitable for a wide range of indoor industrial and HVAC applications.

Q: When should I use this specific model (2220) of Magnehelic Gauge?

A: This model is ideal for applications where precise differential pressure measurement up to 20 PSI is required, such as monitoring filters, air flow, or ventilation in industrial, commercial, and HVAC systems.

Q: What type of maintenance does the Dwyer 2220 require?

A: Regularly check the gauge for calibration with the external zero adjustment screw. Periodically inspect pressure connections and the acrylic window for integrity. No lubrication or complex servicing is needed due to its mechanical design.

Q: Where can I use this gauge, considering its protection rating?

A: The gauge features a dust-resistant front and is well-suited for indoor environments where particulate infiltration is a concern. Do not install it outdoors or in locations exposed to aggressive moisture.

Q: How does the overpressure protection of the Dwyer 2220 benefit users?

A: The gauge can withstand pressures up to its maximum rating (30 PSI) without shifting calibration, providing safety and reliability if unexpected pressure spikes occur.

Q: What are the primary benefits of using a mechanical diaphragm sensor in this gauge?

A: The mechanical diaphragm offers immediate response and durability, ensuring accurate readings without electronic interference. This design also enables operation in electrically noisy or hazardous environments.

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