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DUNGS AA-A1 - Pressure Switches for air, factory adjusted (US/CA)
DungsPressure switch

DUNGS AA-A1 - Pressure Switches for air, factory adjusted (US/CA)

Factory-adjusted DUNGS Pressure Switches AA-A1 for monitoring overpressure, underpressure or differential pressure. Suitable for air and non-aggressive gases in burner, ventilation and air-conditioning systems.

SKU 3G-OTH-02959

Also listed as: AAA1USCA · AA A1 US CA

Brand
Dungs
Item
AA-A1 - Pressure Switches for air, factory adjusted
Part Number
AA-A1-US-CA
Category
Pressure 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 Documents

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

Product Description

Factory-adjusted DUNGS Pressure Switches AA-A1 for monitoring overpressure, underpressure or differential pressure. Suitable for air and non-aggressive gases in burner, ventilation and air-conditioning systems.

Frequently Asked Questions

What is the DUNGS AA-A1 pressure switch used for?

The DUNGS AA-A1 is a factory-adjusted differential pressure switch for monitoring overpressure, underpressure, or differential pressure in air and non-aggressive gases. It is commonly used in burner, ventilation, and air-conditioning systems, and is approved to UL, CSA, and FM standards.

What are the specifications of the DUNGS AA-A1?

The DUNGS AA-A1 has a maximum operating pressure of 1.5 PSI (103 mbar) and a temperature range of -40 °F to +150 °F (-40 °C to +66 °C) for UL/FM. It features a SPDT switch, 0.16" (4 mm) hose connection, and electrical ratings up to 240 VAC / 48 VDC. The housing is polycarbonate with a NBR diaphragm.

Where to buy DUNGS AA-A1 in Singapore?

You can source the DUNGS AA-A1 pressure switch through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this factory-adjusted model for burner and HVAC applications.

How to install the DUNGS AA-A1 pressure switch?

The DUNGS AA-A1 can be installed in any position, but note that the set point may shift by approximately ±0.2 in. W.C. if the mounting orientation differs from the setting position. Use the 0.16" (4 mm) hose connections for air or non-aggressive gases, and ensure electrical connections via the 1/4 x 1/32" flat male terminals.

Used in

Common applications for Dungs
Industrial steam boilers — MB-ZRDLE MultiBloc on modulating gas-fired plant
Hospital and hotel plant rooms — MB-D series for two-stage commercial burners
Food-industry ovens and dryers — DMV butterfly valves on high-turndown modulating lines
Petrochemical gas-train skid assemblies — FRS / FRSBV regulators with GW pressure switches
Retrofit drop-in replacements for older Dungs MB assemblies on existing Weishaupt / Riello burners
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Dungs Products

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This differential pressure gauge with switch features a diaphragm sensor and die cast aluminum housing. It provides ±2% gauge accuracy and has 1/8 in NPT female connections. Suitable for measuring and controlling low differential air or compatible gas pressures in HVAC and industrial ventilation systems
Dwyer
This differential pressure gauge with switch features a diaphragm sensor and die cast aluminum housing. It provides ±2% gauge accuracy and has 1/8 in NPT female connections. Suitable for measuring and controlling low differential air or compatible gas pressures in HVAC and industrial ventilation systems
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The SMC AKB01A-N01S is a bushing-type pneumatic check valve with 1/8 in NPT inlet and outlet connections. It features a brass body and a maximum pressure rating of 1 MPa. This valve allows air flow in one direction while preventing backflow, commonly used in compressed air lines and automation equipment
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Bushing-type pneumatic check valve with 1/8 in Rc inlet and outlet ports. Brass body with NBR seals and stainless steel stopper. Maximum pressure rating of 1 MPa. Used to allow air flow in one direction and prevent backflow in pneumatic systems
The SMC AKB02A-N02S is a bushing-type pneumatic check valve with 1/4 in NPT inlet and outlet connections, rated for a maximum pressure of 1 MPa. It allows air or gas flow in one direction while preventing backflow in pneumatic systems. The valve body and spacer are brass, the O-ring is NBR, the valve is NBR and aluminum alloy, and the stopper is stainless steel
SMC
The SMC AKB02A-N02S is a bushing-type pneumatic check valve with 1/4 in NPT inlet and outlet connections, rated for a maximum pressure of 1 MPa. It allows air or gas flow in one direction while preventing backflow in pneumatic systems. The valve body and spacer are brass, the O-ring is NBR, the valve is NBR and aluminum alloy, and the stopper is stainless steel
SMC
SMC
The SMC AKB01B-N01S is a pneumatic check valve with 1/8 in female NPT connections on both ports. It has a brass body and internal components including NBR seals, an aluminum alloy valve, and a stainless steel stopper. Rated for a maximum pressure of 1 MPa, it allows air flow in one direction while preventing backflow in pneumatic systems

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