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DUNGS GW 500 A4 - Pressure Switches for gas, air, flue, exhaust gases and hydrogen
DungsPressure switch

DUNGS GW 500 A4 - Pressure Switches for gas, air, flue, exhaust gases and hydrogen

Adjustable DUNGS Pressure Switches GW 500 A4 for monitoring pressure deviations. Suitable for air, flue, exhaust gases, hydrogen and gases of gas families 1, 2 and 3 in burner, ventilation and air-conditioning systems.

SKU 3G-OTH-02966

Also listed as: GW500A4 · GW 500 A4

Brand
Dungs
Item
GW 500 A4 - Pressure Switches for gas, air, flue, exhaust gases and hydrogen
Part Number
GW-500-A4
Category
Pressure switch
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Technical Documents

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

Product Description

Adjustable DUNGS Pressure Switches GW 500 A4 for monitoring pressure deviations. Suitable for air, flue, exhaust gases, hydrogen and gases of gas families 1, 2 and 3 in burner, ventilation and air-conditioning systems.

Frequently Asked Questions

What is the DUNGS GW 500 A4 pressure switch used for?

The DUNGS GW 500 A4 is an adjustable pressure switch used for monitoring pressure deviations in burner control systems. It is suitable for air, flue gases, combustion products, hydrogen, and gases of gas families 1, 2, and 3 in burner, ventilation, and air-conditioning systems.

What are the specifications of the DUNGS GW 500 A4?

The DUNGS GW 500 A4 is an adjustable pressure switch per EN 1854 with IP 54 protection (IP 65 for metal housing version). It features a rubber diaphragm, micro-switch, and setting wheel with scale. It is free of non-ferrous metals and suitable for gases up to max. 0.1% by vol. H2S, dry.

Where to buy the DUNGS GW 500 A4 in Singapore?

You can source the DUNGS GW 500 A4 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 DUNGS component for burner and ventilation systems.

How to install the DUNGS GW 500 A4 pressure switch?

Install the DUNGS GW 500 A4 by mounting it in a clean, dry location with the diaphragm in a vertical position to avoid condensation. Set the operating point using the setting wheel scale. Ensure electrical connections follow the switching function: as pressure rises, NC opens and NO closes.

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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