The BAUER B-NITROX MEMBRANE system – Nitrox with integrated and safety certified by the TÜV

BAUER B-NITROX MEMBRANE system - B-MEMBRANE
BAUER B-NITROX MEMBRANE system B-MEMBRANE
BAUER B-NITROX MEMBRANE system (interior view) - B-MEMBRANE
BAUER B-NITROX MEMBRANE system (interior view)

Safety certified by the TÜV: Acceptance testing of BAUER NITROX compressors by the TÜV Süd

Nitrox optimised compressor: Compressor block optimised for high oxygen content and temperature monitoring of all stages for your safety

Oxygen content independent of ambient temperature: Constant cooling of the membrane to ensure optimum efficiency at all times

Small footprint: Screw compressor, refrigeration dryer, filter and membrane unit are installed in a compact housing

B-MEMBRANE is BAUER's nitrox membrane system. This compressor system enriches breathing air with an increased oxygen content of up 40%.

With B-NITROX, BAUER is the only manufacturer in the world to offer a complete nitrox system certified by the TÜV. True to BAUER's uncompromising safety philosophy, all components have been perfectly matched.

The B-NITROX unit has been designed for reliable nitrox supply to stationary, professional diving centres, safari boats, live-aboards, yachts and cruise liners as well as for commercial diving missions.

The legislator has issued clear regulations, as the compression of gases requires a specific degree of tested safety.

This is an important consideration with regard to product liability in the event of accidents (in particular for tour operators and hotels who run diving centres on their sites).

The components of the BAUER B-NITROX MEMBRANE system

The components of the BAUER B-NITROX MEMBRANE system
The components of the BAUER B-NITROX MEMBRANE system

All the information you need at your fingertips!

Low Pressure compressor
Low Pressure compressor

Low Pressure compressor
Screw compressors have an intake pressure of approx. 10 bar, required to supply the oxygen membrane in the system. The screw compressor with ultra-efficient “rolling profile” is a BAUER in-house product

Refrigerant dryer
Refrigerant dryer

Refrigerant dryer
Refrigerant dryer for efficient cooling and condensate separation. Enables oxygen mixture to be produced irrespective of the ambient temperature: the continuously cooled membrane delivers optimum efficiency at all times Filter system reliably removes oil and particulate to protect the membrane from harmful influences and extend its service life.

Membrane
Membrane

Membrane
The oxygen membrane boosts oxygen content by separating N₂ from the breathing air. The oxygen content of the breathing air can be set at any level between 21% and 40%1
1 Maximum oxygen level depends on the specifications of the selected membrane system.

P 61 filter system
P 61 filter system

P 61 Purification system
When used in conjunction with original BAUER filter cartridges, the P 61 purification system with additional oil and water separator and pressure retention check valve can be relied upon for breathing air treatment conforming to DIN EN 12021:2014¹. A type-tested and sealed final pressure safety valve enables particularly high levels of operational safety to be achieved. 2400 m³ of air can be treated.

¹ If the units are maintained and installed correctly as described in the user manual and subject to the BAUER AERO-GUARD being used if CO2 concentration in the intake air exceeds prescribed standard values.

Display B-CONTROL II
Display B-CONTROL II

B-CONTROL II
The BAUER B-CONTROL II is the advanced version of the basic compressor control B-CONTROL MICRO. Read more

TÜV certificate
All BAUER NITROX compressors have been certified by the TÜV Süd

TÜV certificate
All BAUER NITROX compressors have been certified by the TÜV Süd.

B-SECURUS filter monitoring
B-SECURUS filter monitoring

B-SECURUS filter monitoring
The B-SECURUS system monitors the saturation of the filter cartridge(s) by measuring the moisture in the molecular sieve. Read more

Filling device 4 × 200 bar Nitrox
Filling device 4 × 200 bar Nitrox

Filling device 4 × 200 bar Nitrox
The filling device consists of four flexible UNIMAM high-pressure filling hoses and one filling valve each for 200 bar according to DIN EN 144-3. The integrated final pressure gauge makes it easy to read off the final pressure on the high-pressure compressor.

P 81 filter system
P 81 filter system

P 81 Purification system
When used in conjunction with original BAUER filter cartridges, the P 81 filter system with additional oil and water separator and pressure retention check valve can be relied upon for breathing air treatment conforming to DIN EN 12021:2014¹. A type-tested and sealed final pressure safety valve enables particularly high levels of operational safety to be achieved. 5,200 m³ of air can be treated.

¹ If the units are maintained and installed correctly as described in the user manual and subject to the BAUER AERO-GUARD being used if CO2 concentration in the intake air exceeds prescribed standard values.

Additional intermediate separator downstream of the first stage
Additional intermediate separator downstream of the first stage

Additional intermediate separator after the first stage
In the case of operation in locations where air humidity is high (tropical regions, for example), we recommend installing a separator downstream of the first compressor stage. This can extend the service life of the unit and reduce maintenance costs.

Intermediate pressure gauge kit
Intermediate pressure gauge kit

Intermediate pressure gauge kit
The intermediate pressure gauges show the operating pressure of the individual compressor stages. This information about the pressure is used to check the corresponding stage valves (inlet and outlet) for leaks so that potential faults can be detected quickly. The intermediate pressure gauges are installed inside the compressor housing.

60 l condensate collection system
60 l condensate collection system

60 l condensate collection system
This convenient system provides a central collection point for the condensate (oil and water mixture) produced during the compression process inside the compressor. The condensate tank features an integrated float switch which can be relied upon to monitor the level of condensate in the tank and provides protection against overfilling. A combined silencer and filter unit prevents pollution caused by noise or odour.

B-KOOL refrigeration dryer
B-KOOL refrigeration dryer

B-KOOL refrigeration dryer
In environments in which ambient temperatures are high in particular, the B-KOOL refrigeration dryer extends filter capacity almost beyond belief. Operators benefit from much lower filter cartridge usage and storage costs in addition to longer interruption-free operation. Read more

AERO-GUARD
AERO-GUARD

AERO-GUARD
Using the AERO-GUARD reduces the CO2 content of the breathing air to approximately one-third of the intake value. The constantly increasing levels of CO2 concentration in the air resulting from unfavourable environmental influences are making it more and more difficult for the operators of filling stations to be sure of achieving compliance with legally binding maximum limits for CO2. With AERO-GUARD the operator is always on the safe side! Read more

Simple exhaust shaft
Simple exhaust shaft

Simple exhaust shaft
An exhaust shaft is used to discharge the heat generated during compression out of the installation room. The exhaust shaft also reduces noise levels inside the installation room.

B-SAFE 300-OX safe filling module
B-SAFE 300-OX safe filling module

B-SAFE 300-OX
Ensures the uncompromising safety of persons and compressor rooms when filling pressure cylinders. As a result of filling accidents arising from exploding cylinders, explosion protection is already standard or is prescribed in many countries.
B-SAFE replaces costly protective measures in compressor rooms and provides operators with a high level of legal security.

External BAUER filling panels
External BAUER filling panels

External BAUER filling panels
The compressor system can be expanded with the addition of a 4-way, 6-way, or 10-way filling panel.

Other voltages/frequencies
Other voltages/frequencies

Other voltages/frequencies
All electric motors are available with other voltages and frequencies on request. A voltage range from 110 to 690 V at 50/60 Hz is covered.

Sonderlackierung
Sonderlackierung

Paint finish/Special paint finish
All frame parts of BAUER compressors are finished with a sophisticated powder coating. Read more

Scope of delivery of the modules
Scope of delivery of the modules

Scope of delivery of the modules
LOW PRESSURE MODULE, PURIFICATION MODULE, OX MODULE, HIGH PRESSURE MODULE. Read more

B-NITROX membrane system, 225 bar, 260 – 320 l/min
Type
designation
Oxygen
content
Com­pres­sor
charging rate ¹
Max. oper­ating
pressure
Motor /
motor output
Net weight
approx.
Dimensions
L × W × H
  % l/min cfm bar psig Motor kW kg cm
B-MEMBRANE 260/32 32 260 9,2 225 3200 Three-phase current
400 V, 50 Hz
7,5 420 165 × 85 × 152
B-MEMBRANE 320/32 32 320 11,5 225 3200 Three-phase current
400 V, 50 Hz
11 420 165 × 85 × 152
B-MEMBRANE 320/36 36 320 11,5 225 3200 Three-phase current
400 V, 50 Hz
11 420 165 × 85 × 152
B-MEMBRANE 320/40 40 320 11,5 225 3200 Three-phase current
400 V, 50 Hz
15 420 165 × 85 × 152

¹ Measured by cylinder filling from 0–200 bar (0–3000 psi), ± 5 %

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