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Pressure limiter UB A2, NB A2 for Dungs multiple actuators

Pressure limiter UB A2 / NB A2 Dungs
  • These pressure switches ÜB A2, NB A2 are pressure limiters designed to work together with Dungs multiple actuators. If the set reference value is exceeded or undershot the system is locked and can be restarted only manually.
  • It is suitable for switching a circuit on, off or over on changes in actual pressure value relative to the set reference value. The reference valve (switching point) can be set easily and quickly by means of a setting wheel provided with a scale without the use of a pressure gauge.
  • They can be used together with multiple actuators GasMultiBloc MB and with DMV double solenoid valves. Various mounting options on housing or by means of an adapter.
  • Maximum operating pressure: 500/600 mbar, setting ranges between 2.5÷500 mbar. Ambient and medium temperature -15÷70oC, storage temperature -30÷80oC.
  • Switching voltage: DC: 12÷48 V, AC 10÷250 V. Nominal current: AC 10 A.
  • The installation position can change the switching pressure with up to 0.5 mbar.
  • Suitable for gases of families 1, 2, 3 and other neutral gaseous media.
  • Detailed pictures for available models (move the mouse over them to zoom):
Pressure limiter UB A2 / NB A2 - 1 Pressure limiter UB A2 / NB A2 - 2 Pressure limiter UB A2 / NB A2 - 3


Functional description:

Single-acting pressure switch in the overpressure range. The pressure limiters work without external energy supply. The switching mechanism reacts to superpressure. The system is locked if the set reference value is exceeded or overshot. After the fault has been remedied, the system can be put into operation only manually by actuating the unlocking device on the pressure limiter. The switching state "Locked" is indicated by a neon glow lamp.
 
  • UB ... A2
Switches on and locks if the set pressure value is exceeded.
 
  • NB ... A2
Switches on and locks if the pressure is lower than the set pressure value.


Technical specifications NB A2 - UB A2 pressure limiters

Pressure switch type Code Setting range (mbar) pmax (mbar) Degree of protection Medium p(+) Contact material
Pressure limiter NB 50 A2 215237 5 ÷ 50 500 IP 54 gas Ag
Pressure limiter NB 150 A2 215240 30 ÷ 150
Pressure limiter NB 500 A2 215241 50 ÷ 500 600
Pressure limiter UB 50 A2 215242 5 ÷ 50 500 IP 54 gas Ag
Pressure limiter UB 150 A2 215245 30 ÷ 150
Pressure limiter UB 500 A2 215246 50 ÷ 500 600
Pressure limiter UB 50 A2 217652 5 ÷ 50 500 IP 54 gas Ag
Pressure limiter UB 150 A2 217653 30 ÷ 150


Dimensions UB A2 / NB A2 (mm)

dimensions UB A2 - NB A2 - 1 dimensions UB A2 - NB A2 - 2 dimensions UB A2 - NB A2 - 3
For the images that aren't clear move the mouse over them to zoom.


Mounting options NB...A2 / ÜB...A2

Mounting UB A2 / NB A2 - MB-DLE 403 - 1 Mounting UB A2 / NB A2 - MB-DLE 403 - 2
Pressure tap Mounting Pressure tap Mounting
1 YES, with 221630 Seal plug G 1/8 3 YES Seal plug G 1/8
2 YES Instrument gland, optional 4 YES, with 221630 Instrument gland

 

Mounting UB A2 / NB A2 - MB-DLE - 1 Mounting UB A2 / NB A2 - MB-DLE - 2
Pressure tap Mounting Pressure tap Mounting
1 alternatively to 7 Seal plug G 1/8 5 YES, with 214975 M4 inner hex
2 NO Instrument gland, optional G 1/8 6 YES, with 221630 Instrument gland, optional G 1/8
3 YES Seal plug G 1/8 7 YES
4 YES Seal plug G 1/8

 

Mounting UB A2 / NB A2 - MB-DLE 415-420 - 1.jpg Mounting UB A2 / NB A2 - MB-DLE 415-420 - 2
Pressure tap Mounting Pressure tap Mounting
1 YES Seal plug G 1/8, optional instrument gland 3 YES, with 214975 Seal plug G 1/8, optional instrument gland
2 YES Seal plug G 1/8, optional instrument gland 4 YES (horizontal),
with 221630 (vertical)
Seal plug G 1/8

 

Mounting UB A2 / NB A2 - MB-ZRDLE - 1 Mounting UB A2 / NB A2 - MB-ZRDLE - 2
Pressure tap Mounting Pressure tap Mounting
1 alternatively to 7 Seal plug G 1/8 5 YES, with 214975 M4 inner hex
2 NO Instrument gland, optional G 1/8 6 YES, with 221630 Instrument gland, optional G 1/8
3 YES Seal plug G 1/8 7 YES
4 YES Seal plug G 1/8

 

Mounting UB A2 / NB A2 - DMV 503/11 - 1 Mounting UB A2 / NB A2 - DMV 503/11 - 2
Pressure tap Mounting Pressure tap Mounting
1 YES Seal plug G 1/8, optional instrument gland 3 YES, with 214975 Seal plug G 1/8 - M4
2 YES Seal plug G 1/8, optional instrument gland 4 YES (horizontal),
with 221630 (vertical)
Seal plug G 1/8, optional instrument gland

 

Mounting UB A2 / NB A2 - DMV 507-520/11 - 1 Mounting UB A2 / NB A2 - DMV 507-520/11 - 2
Pressure tap Mounting Pressure tap Mounting
1 YES Seal plug G 1/8, optional instrument gland 3 YES, with 214975 Seal plug G 1/8, optional instrument gland
2 YES Seal plug G 1/8, optional instrument gland 4 YES (horizontal),
with 221630 (vertical)
Seal plug G 1/8

 

Mounting UB A2 / NB A2 - DMV 5040-5125/11 - 1 Mounting UB A2 / NB A2 - DMV 5040-5125/11 - 2
Pressure tap Mounting Pressure tap Mounting
1 YES Seal plug G 1/8, optional instrument gland 4 YES Seal plug G 1/8, optional instrument gland
2 YES Seal plug G 1/8, optional instrument gland 5 NO G 1/4
3 DA Seal plug G 1/8, optional instrument gland 6 NO G 1/4

 

Mounting UB A2 / NB A2 - FRU
Pressure tap Mounting Pressure tap Mounting
1 YES Seal plug G 1/8 3 YES Seal plug G 1/8
2 YES Seal plug G 1/8

 

Mounting UB A2 / NB A2 - SV
Pressure tap SV 505/507 SV 510/512 SV 520 Pressure tap SV 505/507 SV 510/512 SV 520
1 pe pa pa 3 NO pe pe
2 NO pe pe 4 pa cu 221630 pa pa


Type key UB A2 / NB A2 pressure limiter

Legend Pressure limiter UB A2 / NB A2 Schematic Pressure limiter UB A2 / NB A2
For the images that aren't clear move the mouse over them to zoom.


Prices for pressure limiters

Code Type Prices without VAT
215237 Pressure limiter NB 50 A2 Ag-G3-V12 fa-se 0.00
215240 Pressure limiter NB 150 A2 Ag-G3-V12 fa-se 0.00
215241 Pressure limiter NB 500 A2 Ag-G3-V12 fa-se 0.00
215242 Pressure limiter ÜB 50 A2 Ag-G3-V12 st-se 0.00
215245 Pressure limiter ÜB 150 A2 Ag-G3-V12 st-se 0.00
215246 Pressure limiter ÜB 500 A2 Ag-G3-V12 st-se 0.00
Models no longer part of the Dungs main product line:
217652 Pressure limiter ÜB 50 A2 Ag-PG-V12 st-se 0.00
217653 Pressure limiter ÜB 150 A2 Ag-PG-V12 st-se 0.00
In case the price is missing or for a list of discounts contact us directly to receive an offer.