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Mike Clarkson Hiross Zander Division Marketing & Business Development Manager. Attention: Contamination!. August 14, 2014. Particulate. Particle contamination in a compressed air system comprises Atmospheric dirt, micro-organisms, rust and condensate deposits
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Mike Clarkson Hiross Zander Division Marketing & Business Development Manager
Attention: Contamination! August 14, 2014
Particulate Particle contamination in a compressed air system comprises Atmospheric dirt, micro-organisms, rust and condensate deposits Much of the contamination is less than 40 millionth of a meter in size (40 micron) and thus remains hidden from the human eye.
Compressor Compressingthe contamination Compressed Air Condensate Oil Particulate and humidity from the atmosphere. Why use microfilters? Compressing the problem! Compressor After-Cooler Remaining oil content after compressor Condensate plus plus Atmospheric Contamination. Particulate and Humidity. Expansion of the Compressed air
The new “GL-Technology”: Lowest energy requirement at highest validated performance! August 14, 2014
Why are we replacing the Zander “G-Series” with the “GL-Series?” • New international standards (ISO12500-1) (increased demands on performance) • Competitor activity (Filter element business at risk!) • Innovation (maintaining market-leadership) • A new “Marketing-Story “
Zander “GL-Filter series” Development goals August 14, 2014
What did we want to achieve in the development of a new compressed air filter range? • The highest, validated compressed air quality • Optimum flow characteristics (energy-loss kept to a minimum) • A reduction in the operating costs in comparison with the existing range • Secure the replacement element business. Remove the threat of pirate copies or at least make copying unaffordable • Maintain the key features of the Zander “G-Series” (Taking account of the customer survey )
Input from Customer Survey • World-wide scope of approvals • All vendors located in Europe, all drawings owned by Zander • BSP-P connections – Improvement on Parker dh Evolution filter range
Input from Customer Survey • Larger connections sizes – better match to compressor flows and lower delta p
Input from Customer Survey • Pressure gauges optional, all types still available • Drain connection via ½“ - free flow of liquid
Input from Customer Survey • No extended servicing space necessary below the bowl • One flow direction: inside-out • Inlet marking on the filter head – clear orientation • No over-tightening of housing thread
Input from Customer Survey • ISO 12500-1 performance for standardised oil-loading – catch- up with Parker domnick hunter Division, Donaldson/Ultrafilter, and Hankison • Outer sock - higher oil loading possible • Captive element design – protection against pirates
Customer Survey - Crucial Points • Third party ISO-performance certificates • Variances to assembly dimensions of series G
Parker Zander “GL-Filter series Improvement in flow characteristics – Air Flow Management August 14, 2014
Improving the air inlet to the filter element • Where air flows across a sharp edge, turbulence can occur. This leads to increased resistance to flow and an insufficient distribution of the air flow. • The current filter element design, also true of Zander The air entering the element is directed through a sharp 90° angle. Turbulence, pressure drop, insufficient distribution of the air throughout the filter media is the result. Such rapid changes in direction lead to turbulent flow, system pressure drop and increased running costs.
Improving the air inlet to the filter element • Improvement – rounded corners reduce turbulence. The air flow however still doesn`t flow into the element in an even manner.
Improving the air inlet to the filter element – Aerospace Technology! • Optimum solution – The addition of deflector-vanes in the air-inlet and a conical air dispenser at the base of the element prevent turbulence by maintaining an even flow distribution at a minimum pressure drop. • Hard to believe, but its true! Compare a conventional 90° angle and the savings of up to 75% to be gained from turbulence-free flow
The optimum combination • Deflector-vanes direct the air flow in an unrestricted even-manner into the filter element.
Parker Zander “GL-Filter series” Filter element construction - Inlet-/Outlet August 14, 2014
Air inlet – Do away with energy-killers: Conical “full-flow” filter housing inlet • Free-flow, turbulence-free transition of the air entering the filter element. No knife-edges. • The inlet channel to the filter element (top end-cap) matches the inlet diameter of the filter housing. • The top end-cap seals with the aid of two o-rings, above and below the opening.
Air inlet – “Its plain sailing”: Flow disribution • “its plain sailing”: Airospace deflector-vanes enable the air to flow evenly into the filter element. • “Go with the flow” - Optimum air distribution throughout the entire filter element with the aid of a flow distributor protruding into the heart of the element. This unique construction ensures full utilisation of the entire surface area.
No impact on the base of the element! • A conical soft-air disperser at the base of the filter element prevents turbulence and directs the flow out through the filter media in an even manner.
A “successful escape!” • External air stabilisers, located on the filter element top end-cap ensure the even flow of compressed air exiting the filter housing.
Parker Zander “GL-Filter series” Filter Media August 14, 2014
The Filter Media – Nano-Technology! • High-efficiency filter media manufactured from borosilicate nano-fibres with a voids volume of 96%. • A special “oleophobe” coating is applied to the filter media to actively repel oil and water. • What is nano-technology? Nano comes from the Greek word “nanos”, meaning dwarf. 1 Nano = 1m/1.000.000.000. Nano technology is a particular desigb in atomic and molecular dimensions. Nano technology is not a new product, but a manufacturing technology! Parker Zander incorporates borosilicate nano-fibre technology into it´s current range of filters and into the new GL-filter generation. We termed this material „borosilicate microfibre“ in the past. The change in name is indicative for the development in analytical methods which make it possible to establish the presence of nano-fibres in the material previously refered to as micro-fibre. As the technology exists to proove the presence of such fibres, we now term this filter media „Nano-fibre.“
Large area – greater outcome! • Deep-bed pleating techniques result in 4,5 times more effective filtration area than conventional filter elements – resulting in increased particulate retention, reduced space and lower operating costs Pleated construction Zander G-Series Wrapped construction still seen in many filter elements in the market (dh & Zander in the past)
Oil-repelling filter media • The filter media actively repels oil and water (oleophobic coating)
Large area – greater outcome! • The surface area of the filter media has been optimised using deep-pleat technology. A pioneering manufacturing process representing considerable technological advancement. • No “glued seam” – now replaced by ultra-sound welding. In contrast, a filterelement from the competition Quelle: http://www.ultrafilter-elemente.ch/
Parker Zander “GL-Filter series” Why change a winning concept? August 14, 2014
Compressed air must not only be clean, but also efficient! As well as the removal of contamination, the economics of using compressed air filters plays an important role. Here the requirement is one of minimising costs and achieving a balance between the compressed air quality being sought and the amount of energy necessary to achieve it. The international standard for compressed air quality provides a simple, clear system for the classification of the three main sources of contamination, namely, water, oil and particulate.
Quality requirements - ISO 8573.1 In the 1991 edition, the specification states a maximum particle size and a concentration. The 2001 edition however states a maximum quantity of particles per cubic-meter. In order to appreciate the increase in the demand made on air quality between these dates, the 1991 particle concentration csn be converted into the particle quantity.
Quality requirements - ISO 8573.1 This technique shows how much cleaner the 2001 classification is, compared with 1991. In accordance with this statement, class 1 in the 1991 edition became class 2. In accordance with the 2001 edition it was only possible to achieve class 1 with a sterile air filter!
Quality Requirements - ISO 8573.1:2010 Compressed air quality in accordance with class 1 for particulate means: Per m³ of compressed air, the particle quantity should not exceed 20.000 particle in the size range 0,1 to 0,5. (400 particles in the size range 0,5 to 1 micron and 10 particles in the size range 1 to 5 microns). The new edition of ISO 8573.1 establishes considerable higher limits for particulate contamination. At first glance, this looks like a worstening of the recommended purity classes! Industrial end-users will profit from the new edition of ISO 8573.1. It establishes more realistically achievable values. It is however advisable to agree which edition of ISO 8573.1 is being referred to when agreements are being made!
Proof of performance: The bar is high – but we´re raising it higher! Quality class performance in terms of oil contamination, in accordance with ISO 8573.1 makes no statement regarding the up-stream oil loading entering the filter to arrive at the downstream performance levels required by the norm. For a few years now (since 2007), an international specification governs the inlet oil loading to be achieved and the test equipment to be adopted, to validate the performance of compressed air filters in terms of their stated downstream remaining oil content results. Test methods in accordance with ISO 12500 – Finally a clear statement!
Proof of performance: The bar is high – but we´re raising it higher! A standardised statement regarding the inlet oil loading exists since 2007. A basis has been established against which measurements can be made and validation undertaken. Source: Brochure: Donalson Ultrafilter
Proof of performance: The bar is high – but we´re raising it higher! Stated remaining oil content values, following a high performance filter are in actual fact limited in their meaningfulness. However, where account is taken of the validated inlet-loading in accordance with ISO 12500-1, it becomes clear in what range high-performance filters really do perform. New GL-Filtration technology delivers what it states and offers you an independent, validated statement of performance in accordance with ISO 12500-1.
Parker Zander “GL-Filter series Coalescing principle August 14, 2014
Why filter elements with an external drainage layer? Why an external drainage layer again? The new ISO 12500-1 establishes high levels of separation duty to be performed. With 40 mg of oil inlet concentration, performances of 99,95% are not achievable with filter elements containing a thin internal drainage layer. In 1990 and the years to follow, the internal drainage layer was second to none in comparison with an external „foam sock.“ (compatibility problems, low resistance to pulsation). Furthermore the new „drainage sock“ represents a new material with oleophobic properties. This is no longer comparable with the less stable foam from two decades ago. Since that time materials technology has made considerable improvements in performance and reliability.
External drainage „sock“, manufactured from oil and water repelling material • Liquid repelling material achieves excellent drainage results. • Max. operating temperature 80°C where an internal float-drain is installed and 100°C with a manual drain. • Resistent to all mineral and synthetic compressor oils. Old, used compressor oil
“No wet feet!” • No “wet-band” formation, no etra turbulent-free zone. Optimum drainage – bottom end-cap shrouded in drainage material. • Traditional filter elements exhibit a wet-band around the base. • 40% more flow through a small filter element where “wet-band” formation is prevented.
“No wet feet!” • Cast housing-ribs compress the lower part of the filter element and encourage liquid coalescence via capillary forces.