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Dwyer Differential Pressure Gauge & Switch: Single-Side, 1/8 in NPT Female - Low Operating Pressure Differential Gauges with Switch
DwyerLow Operating Pressure Differential Gauges with Switch

Dwyer Differential Pressure Gauge & Switch: Single-Side, 1/8 in NPT Female

The Dwyer A3002AV is a Series A3000 Photohelic low operating pressure differential gauge with switch, featuring a diaphragm sensor and die cast aluminum housing. It offers ±2% gauge accuracy and a 1/8 in NPT female…

SKU 3G-OTH-175311

Brand
Dwyer
Item
Differential Pressure Gauge & Switch: Single-Side, 1/8 in NPT Female
Category
Low Operating Pressure Differential Gauges with Switch
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
A3002AV
Series
A3000 Photohelic
Type
±2% Gauge Accuracy
NPT Female
1/8 in
Sensor Type
Diaphragm
Gauge Accuracy
±2%
Housing Material
Die Cast Aluminum
Certificate of Calibration
Not Included

Technical Documents

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer A3002AV is a Series A3000 Photohelic low operating pressure differential gauge with switch, featuring a diaphragm sensor and die cast aluminum housing. It offers ±2% gauge accuracy and a 1/8 in NPT female connection. This single-side instrument does not include a certificate of calibration.

Frequently Asked Questions

What is the Dwyer A3002AV differential pressure gauge with switch used for?

The Dwyer A3002AV is used to measure and control low differential pressure in HVAC, cleanroom, and industrial process applications. Its built-in switch provides alarm or control output when pressure exceeds a setpoint, making it ideal for filter monitoring, airflow verification, and duct static pressure regulation.

What are the specifications of the Dwyer A3002AV?

The Dwyer A3002AV is a Series A3000 Photohelic differential pressure gauge with switch. It features a diaphragm sensor, ±2% gauge accuracy, a 1/8 in NPT female connection, and a die cast aluminum housing. It is a single-side instrument and does not include a certificate of calibration.

Where to buy the Dwyer A3002AV worldwide?

You can source the Dwyer A3002AV through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Dwyer instruments to procurement teams and plant engineers globally.

How to install the Dwyer A3002AV differential pressure gauge?

Install the Dwyer A3002AV by connecting the 1/8 in NPT female port to the pressure source using compatible fittings. Mount the die cast aluminum housing securely to avoid vibration. Follow standard wiring practices for the switch contacts. Refer to the Dwyer Series A3000 manual for proper zero adjustment and range calibration.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer low operating pressure differential gauges with switch. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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