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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 A3000 Photohelic Series A3215 is a low operating pressure differential gauge with switch, featuring a diaphragm sensor and ±2% gauge accuracy. Housed in die cast aluminum with 1/8 in NPT female connections…

SKU 3G-OTH-175323

Also listed as: A 3215 · A-3215

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
A3215
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 A3000 Photohelic Series A3215 is a low operating pressure differential gauge with switch, featuring a diaphragm sensor and ±2% gauge accuracy. Housed in die cast aluminum with 1/8 in NPT female connections, this single-side instrument does not include a certificate of calibration.

Frequently Asked Questions

What is the Dwyer A3215 differential pressure gauge and switch used for?

The Dwyer A3215 Photohelic differential pressure gauge and switch is used to measure and control low air or compatible gas pressure in HVAC, cleanroom, and industrial ventilation systems. Its diaphragm sensor and ±2% accuracy make it suitable for monitoring filter status, duct pressure, and fan performance.

What are the specifications of the Dwyer A3215?

The Dwyer A3215 is part of the A3000 Photohelic series with a diaphragm sensor, ±2% gauge accuracy, and die cast aluminum housing. It has 1/8 in NPT female connections and is a single-side instrument. A certificate of calibration is not included. The manufacturer part number is A3215.

Where to buy the Dwyer A3215 worldwide?

You can source the Dwyer A3215 differential pressure gauge and switch 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.

How to install the Dwyer A3215 differential pressure gauge?

Install the Dwyer A3215 by mounting it in a clean, dry location away from vibration. Connect the high-pressure port to the higher pressure side and the low port to the lower side using 1/8 in NPT fittings. Ensure the diaphragm sensor is not overpressured beyond the rated range. Follow standard piping best practices.

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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