DUNGS ÜB, NB...A4 - Pressure Limiters for gas, air, flue, exhaust gases and hydrogen
Adjustable DUNGS Pressure Switches ÜB, NB…A4 with manual reset for monitoring overpressure. Suitable for air, flue, exhaust gases, hydrogen and gases of gas families 1, 2 and 3 in burner, ventilation and…
SKU 3G-OTH-02958
Also listed as: UBNBA4 · UB NB A4
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
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Product Description
Adjustable DUNGS Pressure Switches ÜB, NB…A4 with manual reset for monitoring overpressure. 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 ÜB NB A4 pressure limiter used for?
The DUNGS ÜB and NB A4 pressure limiters are adjustable pressure switches used for overpressure and underpressure monitoring in firing, ventilation, and air-conditioning systems. They are suitable for air, flue gases, exhaust gases, hydrogen, and gases of families 1, 2, and 3.
What are the specifications of the DUNGS ÜB NB A4?
The DUNGS ÜB and NB A4 pressure limiters have a max operating pressure of 500 mbar (50 kPa) for models 50-150 A4, and 600 mbar (60 kPa) for models 500 A4. They feature a G 1/4 female pressure connection, ambient and medium temperature range of -15 °C to +70 °C, and a metal housing with integrated test nipple.
Where to buy DUNGS pressure limiters in Singapore?
3G Electric supplies DUNGS ÜB and NB A4 pressure limiters to Singapore. We handle logistics, customs clearance, and delivery to your site, and provide local technical support for burner and HVAC applications. Contact us for sourcing and lead time details.
How to install the DUNGS ÜB NB A4 pressure limiter?
Install the DUNGS ÜB or NB A4 pressure limiter with the pressure connection at the p+ port using G 1/4 female thread. Ensure the ambient temperature stays between -15 °C and +70 °C. After installation, adjust the set point on the setting wheel and test the manual reset function before commissioning.
Used in
Common applications for DungsDungs 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.
