>> Pressure switches >> GW A3
Pressure switch GW A3 Dungs for gas, air, flue gases, combustion products
- These pressure switches GW A3 are designed for Dungs multiple actuators in gas shortage systems and is directly mountable by O-ring flange.
- Suitable for closing, opening or switching over a current circuit when the actual pressure value deviates from the specified pressure setpoint. The specified pressure setpoint (operating point) is factory-set.
- They can be paired with MB GasMultiBloc, double solenoid valves DMV or pressure regulators FRI.
- The GW A3 has a flat construction, therefore is specially designed as an integrated unit.
- Maximum operating pressure: 150 mbar, setting ranges between 1÷100 mbar. Ambient and medium temperature -15÷70oC, storage temperature -30÷80oC.
- Switching voltage: DC 24÷48 V; AC 24÷250 V. Nominal current: DC 20 mA; AC 6 A.
- The installation position can change the switching pressure with up to 0.4 mbar.
- Suitable for gases of families 1, 2, 3 and other neutral gaseous media, as well as air, flue gases and combustion products.
- Note: This series is no longer part of the Dungs main product line.
Functional description GW A3:
Pressure switch for applications involving excess pressure. The excess pressure compared to the atmopsheric pressure acts via the diaphragm against the force of the setting spring
on the micro-switch. The switching mechanism reacts to overpressure and closes, opens or switches over a current circuit when the specified pressure setpoint is overshot or
undershot. It operates without any auxiliary power.
Technical specifications GW A3 pressure switches
| Pressure switch type | Code | Setting range (mbar) | pmax (mbar) | Degree of protection | Δp (mbar) | Medium p(+) |
|---|---|---|---|---|---|---|
| Gas pressure switch GW 10 A3 | on request | 1 ÷ 10 | 150 | IP 00/20/42 | ≤1 | gas air |
| Gas pressure switch GW 50 A3 | on request | 2.5 ÷ 50 | ≤2.5 | |||
| Gas pressure switch GW 100 A3 | on request | 20 ÷ 100 | ≤8 |
Dimensions GW A3 (mm)
Pressure switches for gas and air GW A3:
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Prices pressure switches GW A3
| Code | Type | Prices without VAT |
|---|---|---|
| on request | Pressure switch GW 10 A3 | 0.00 |
| on request | Pressure switch GW 50 A3 | 0.00 |
| on request | Pressure switch GW 100 A3 | 0.00 |
In case the price is missing or for a list of discounts contact
us directly to receive an offer.

