Parker Hannifin ltd, domnick hunter division
Filtration, Purification & Separation Specialists
Founded in 1963, the very successful domnick hunter filtration, purification and separation group recently became part of Parker Hannifin Corporation, the World leader in motion and control technologies.
As a global solutions provider for a very wide and diverse range of industries and applications, the many business activities of domnick hunter are divided into two main business segments, Industrial Operations and Process Operations.
Parker domnick hunter – Industrial Operations
Industrial Operations is a World leader in the filtration, purification and separation of compressed air and gases with many significant brand labelled products and major customers. Specialising in the fine end of the market where product quality, support and technological excellence are paramount, it designs and manufactures filters, dryers, breathing air purifiers, condensate management and ancillary equipment.
domnick hunter is instrumental in the development of both the international standards for compressed air and filter testing, and continues to work closely on new standards with such governing bodies as the British Compressed Air Society (BCAS), the International Standards Organisation (ISO), PNEUROP, and the Compressed Air and Gas Institute (CAGI).
Compressed Air Purification
domnick hunter high efficiency OIL-X EVOLUTION filters provide the complete solution for the removal of solid contamination, liquid oil and water droplets, oil odours and vapours to levels so low that only the most advanced equipment can detect any remaining contaminants. Typically, domnick hunter filters can remove contaminant particles down to one hundredth of one millionth of a metre (0.01 micron) in size - 4,000 times smaller than the smallest particle visible to the naked eye!.
OIL-X EVOLUTION filters are the most energy efficient compressed air filters in the World, and industries rely on this level of technology for trouble free, efficient production.
Whilst filters can remove solid and liquid contamination, they cannot remove water vapour which must be removed with a compressed air dryer.
It is not usually cost effective or necessary to dry all the plant air to the highest standard and it is normal practice to dry the ring main air with a refrigeration dryer, and only dry the air for the critical point of use applications with a desiccant dryer.
domnick hunter pioneered and patented the first ranges of PNEUDRI modular desiccant dryers which are still today’s benchmark, thousands being in service World-wide. Some critical applications require a pressure dewpoint of minus 70°C pdp, however, most customers opt for minus 40ºC pdp, because below minus 26°C pdp, bacterial growth is inhibited and therefore cannot contaminate processes or spoil end products.
Safe Breathing Air
Respiratory protection from air borne contamination is essential for the health and comfort of workers. Simple respirators are limited in their application but compressed air purified to breathing air standards can be used to protect against any form of contamination.
domnick hunter also offers a full range of breathing air purifiers for single or multi-person use in applications such as shot blasting, spray painting or for safety in hazardous environments. To support the above, domnick hunter also produces an air purity test kit to enable the testing of contaminants upstream and downstream of installed breathing air purifiers. All domnick hunter breathing air purifiers comply with or exceed the latest international breathing air standards.
On-site Gas Generation
domnick hunter also provides much innovative development for on-site nitrogen, air and hydrogen gas generation equipment for industrial and scientific applications. In the advancement of a more flexible gas supply, high-purity gases coupled with improved performance and safety, are primary benefits from the comprehensive ranges of gas generators.
The domnick hunter MAXIGAS and scientific ranges of nitrogen gas generators allows users to produce ultra high purity nitrogen gas from a supply of compressed air, without the need for high pressure cylinders or liquefied gas supplies.
Parker domnick hunter – Process Operations
Process Operations specialise in the manufacture and supply of filters for the clarification, stabilisation and sterilisation of liquids and gases, principally in the pharmaceutical, beverage, food and electronics industries, and also in laboratories.
Throughout these hi-tech and other process industries, there are numerous applications where clean compressed air is just not good enough, they need sterile air. To achieve this, domnick hunter offers ranges of both microfibre and membrane filters in special stainless steel hardware which allows systems to be steam sterilised and the filters to produce a constant stream of bacteria free sterile air.
Pure Liquids
Although people never give it a thought, many of the day-to-day products they consume or use need to be filtered to remove contaminants before they are packaged. Just a few examples are wine, beverages, mineral water, pharmaceuticals, medicines, cosmetics, contact lens solution etc, etc.
domnick hunter offers a range of high efficiency liquid filters utilising a variety of its own manufactured membranes to remove contamination as small as bacteria, consistently, safely and economically, and is also specified in the production processes of many well known branded products.
Other Products for “Vertical Markets”
In addition to its many standard product ranges, albeit for critical markets, domnick hunter also specialises in a number of “ vertical markets “ with some very specialised products. For example, carbon dioxide purifiers for the beverage industry, medical vacuum filters for hospitals, high pressure filters for filling breathing air bottles, water chillers for process industries and a very comprehensive range of filters, dryers and ancillary equipment for the railway and transportation industries.
World’s first Regenerative NBC Protection
Also part of Industrial Operations is the Protective Systems Group which specialises in the supply of NBC (Nuclear, Biological, Chemical) filtration technologies to the military market. It provides the World’s first totally regenerative filtration system that is 100% effective against all air borne contaminants. These include nerve agents, choking, blood agents, viruses and bacteria and nuclear particles. Protective systems are available for buildings, ships, shelters and vehicles, both armoured and civilian.
World-wide demand for cleaner, purer products, sophisticated production processes and products, and more stringent requirements for health, safety and environmental protection continues to increase. In an ever competitive market place, our customer expectations and solutions are paramount and are satisfied with products that are innovative, reliable and energy efficient. Our belief is that this can only be achieved through our people, their capabilities and the use of cutting edge technologies to develop exceptionally high quality products and processes.