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B-Nitrox membrane system, 260-450 l/min

B-NITROX 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).

Below is a selection of details and features on the B-Nitrox compressor.

1 – LOW PRESSURE MODULE

The LOW PRESSURE MODULE is an upstream screw compressor. Its free air delivery is perfectly matched to the HIGH PRESSURE MODULE.

 

 

2 – PURIFICATION MODULE

Necessary for the safety and longevity of the oxygen membranes

3 – OX MODULE

The oxygen membrane separates N2 out of the breathing air, thereby increasing the oxygen content. The oxygen content in the breathing air can be freely regulated between 21% and 40% (lower and upper limit values).

4 – HIGH PRESSURE MODULE

The high-pressure compressor, which is optimised for compression up to an oxygen content of 40%, can be relied upon for cost-effective and safe operation thanks to special manufacturing procedures that are followed as standard by BAUER KOMPRESSOREN.

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.

B-CONTROL II

The advanced version of the proven B-CONTROL MICRO compressor control.

The B-CONTROL II features a 5.7″ colour touch screen display with 10 direct selection keys. Interaction between user and control is user-friendly and logical. The information on the display can be read off in clear text. Various languages are available for selection.

As well as supporting the control and monitoring of important system functions, the B-CONTROL II also features additional user-friendly features such as a data logger, USB port and accessible interfaces such as Modbus, CAN Bus or Profibus. It can even be used for integrated control of an interconnected system with up to four compressors.

Additional sensors and devices can be connected, e.g. for monitoring intermediate pressures and temperatures. Remote data transfer via B-MESSENGER is supported as an option.

The B-CONTROL II can be customised and expanded to meet your individual requirements – including control of end-to-end system sequences.

TÜV certificate

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

Below is a selection of equipment options on the B-Nitrox compressor.

B-SECURUS filter monitoring

The B-SECURUS system monitors the saturation of the filter cartridge(s) by measuring the moisture in the molecular sieve and outputs a warning on the display or the compressor control in advance of when the filter cartridge should be changed.

B-SECURUS automatically switches the compressor unit off when the cartridge reaches saturation point. The B-SECURUS filter monitoring unit can only be used in conjunction with P 41/P 42/P 61/P 81 filter systems and external BAUER filter systems.

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 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 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

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

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

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.

AERO-GUARD – Efficient cleaning of CO₂ from breathing air

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

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

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

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

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.

B-NITROX

B-NITROX, 225 bar, 260 – 450 l/min

Type Effective
free air delivery ¹
No. of
compressor stages
Speed Motor
output
Dimensions
l/min m3/h cfm rpm kW cm
MV260-OX 260 15.6 9 4 1185 5.5 120 x 81 x 138
MV320-OX 320 19.2 11 4 1450 7.5 120 x 81 x 138
V450-OX 450 27 16 4 1320 11 120 x 81 x 153
MARINER-OX-320-E 320 19.2 11 4 1450 7.5 130 x 64 x 70

¹ Measured with cylinder filling (10 l) from 0 to 200 bar, ±5%

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