Compact new MIDIGAS nitrogen generators from Parker domnick hunter Filtration mean a wider range of companies can enjoy the quick payback times and ongoing economies resulting from on-site gas generation from compressed air. The domnick hunter Industrial Division of Parker Hannifin, have launched the enhanced MIDIGAS systems which complement the proven MAXIGAS range used throughout Australasia in different applications throughout industry.
These applications extend from modified atmosphere packaging (MAP) and food and beverage processing to electronic component production, plastic component production, metal working and tank and pipe sparging and blanketing in industries ranging from electrical to mining and petroleum.
According to John Davis, Product Sales Specialist, Purification & Separation Systems, Parker domnick hunter Filtration, the expanded MIDIGAS range means that the company can offer nitrogen generators for low to high volume requirements, and can now help a broader range of customers to save further costs while improving their productivity and profitability.
The three new MIDIGAS generators have been designed to offer a simple and cost-effective method of producing high purity nitrogen in-situ, simply from a supply of compressed air. This eliminates the need for traditional and expensive gas storage cylinders, dewars or bulk storage. As a result, customers using MIDIGAS generators can make reductions in the cost of using nitrogen, with a fast payback on a MIDIGAS generator of between 12 and 24 months, and ongoing savings of up to 90% thereafter.
In addition, by producing nitrogen on-site, the latest MIDIGAS generators allow customers to overcome the environmental issues and carbon footprint associated with road transport of bottled gas and the unpredictability of fluctuating gas prices.
The easy-to-use system is simple to install, requires minimal maintenance and eliminates safety hazards and OHS issues associated with traditional gas supplies. The compact design with modular option mean generators can be multi-banked if required. MIDIGAS generators stand 1034mm high, 450mm wide and 471,640mm and 809mm deep, depending on model.
Each MIDIGAS generator is supplied as an integrated system and requires just mains power and compressed air connections. The generators use proven pressure swing adsorption (PSA) technology, with pairs of extruded aluminium modular columns filled with high performance carbon molecular sieves (CMS). These adsorb oxygen preferentially from the compressed air supply, with the larger nitrogen molecules are being allowed to pass through each sieve to a storage vessel, from where the gas can be fed directly to process applications.
During manufacture of gas, the extruded columns are snowstorm filled with CMS. This provides a maximum packing density and uniform flows, producing a highly efficient method of separation with a continuous nitrogen stream that delivers purities from 5% oxygen down to 10ppm, as specified by the customer. The units’ snowstorm filling also improves back flushing to exhaust the adsorbed oxygen and other contaminants from each column.
The operation of each MIDIGAS system is automatic, making it easy to setup and operate, with the production of nitrogen being determined by the demands of downstream processes. This helps to reduce overall energy consumption and considerably extends the operating life of the unit, which is in excess of ten years. Similarly, maintenance costs are low, with only routine maintenance required, while the modular design of the MIDIGAS system enables the installation to be extended as and when nitrogen requirements increase.
The MIDIGAS and MAXIGAS range is backed by Parker domnick hunter's global network of manufacturing, sales and customer support centres, providing full service, spares and applications expertise. Optional preventative maintenance contracts are also available.
In addition to nitrogen, Parker domnick hunter also offers pre-treatment solutions such as OILX EVOLUTION compressed air filters and PNEUDRI adsorption dryers to provide compressed air to ISO 8573-1:2001 air quality standards. Sterile gas in addition to polishing solutions which ensure beverage-grade carbon dioxide remains within specification are also available.