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Compressed Air/Compressors


Car manufacturingBEKO TECHNOLOGIES has helped one of the largest car manufacturing plants in the UK, based in the North East of England. The customer approached BEKO TECHNOLOGIES following a supplier recommendation as they were looking to replace the existing dryers which were also due an overhaul. We felt that the refurbishment was not a very cost effective method as the existing equipment would still be costly to operate even after a major overhaul. BEKO TECHNOLOGIES offered a solution to replace this equipment with "zero-purge" desiccant dryers that would reduce running costs significantly and offer improved air quality.


Food and Beverage Quality Compressed Air

The food and beverage industry uses compressed air in a wide diversity of processes. Some compressed air is used as general purpose air to operate pneumatic devices, controllers and sometimes as simple as blow-down air. This air does not come under the most stringent quality requirements. Other processes have the compressed air directly in contact with the product and of course this would be required to meet a standard typically 100% oil free and with a dew point at pressure of -40°C.

So how does the food/beverage industry ensure that it is meeting the high quality standards set either internally, by the customer or a regulatory body such as the British Compressed Air Society/British Retail Consortium Code of Practice?

We at BEKO TECHNOLOGIES provide measuring equipment which can measure flow, pressure, pressure dew point, leakage and one that is not so easy or common, remaining oil vapour content down to 0.003ppm or better than Class 1 for the ISO standard (ISO 8573-1). To answer the question posed, most companies do not measure the oil vapour content for two reasons. First is that many companies have invested in oil free compressors and believe that they have nothing to fear and second that they are not aware that the equipment to make this measurement in situ is available at a reasonable cost. Without going into the whole oil free air or oil free compressor debate, suffice it to say that a 100% oil free compressor will not add to hydrocarbon content in the air but equally will not remove any present in the ambient inlet air. BEKO TECHNOLOGIES is aware of a site with a 100% oil free compressor recording Class 2 ISO for oil content at periods corresponding to shift changes and hence much vehicular activity.

Read more: Food and Beverage Quality Compressed Air


IMG 5309-On September 17th 2012 the new production facility in China was successfully established.

With the opening of the sixth production facility, BEKO TECHNOLOGIES is following its global strategy to be represented in all continents with its own production factories. With the opening of BEKO ´s sixth production site here in Shanghai, we are following the vision of Berthold Koch and now have the opportunity to manufacture products with German technology within China for this great country. The products are locally re-engineered in direct coordination with our customers in China to meet their requirements.


EVERDRY adsorption dryers with the new RELOAD method

Reliable pressure dew points below -40°C with Heat-Of-Compression (HOC) systems without additional heating.

With the newly-developed RELOAD method, BEKO sets a new benchmark for energy efficiency regarding the drying of oil-free compressed air in two stages. The chief benefit of the method is that it removes the need to heat the compressed air during the regeneration phase. Pressure dew points of - 40°C can be achieved at compression end temperatures of only 150°C.This saves considerable energy costs and, moreover, protects the environment.

Read more: EVERDRY adsorption dryers with the new RELOAD method

Are all refrigeration compressed air dryers the same?

In the UK each year thousands of products are sold to dry compressed air. One of the most common is the refrigeration dryer which can achieve a 3°C pressure dew point. This means that provided the compressed air system stays above this temperature there will be no further condensation of water out of the compressed air. The fridge type is popular because it is adequate for general purpose compressed air and is relatively low cost, easy to maintain and well supported by manufacturers and distributors. This piece of equipment is often vital to the production in terms of both output and quality.

Read more: Are all refrigeration compressed air dryers the same?

Tailor-made DRYPOINT RA 600 solution

KP Foods, a part of the United Biscuits group have had issues in recent years with refrigeration dryers failing because of the acidic conditions on site due to ingredients such as acetic acid affecting the internal copper tubing of refrigeration dryers. A number of different brands of dryer have been tried and tested on site with limited success. Some dryers actually failed in less than 6 months.

BEKO TECHNOLOGIES looked at the PH value of the condensate and the acidic ambient conditions. From this a tailor-made DRYPOINT RA 600 solution was offered, where all the internal copper piping and condensate discharge points of the dryer were coated with a special anti-corrosion treatment. The first RA dryer sold to KP Foods has been installed on sitenow for nearly 4 years without a single failure. This was a major factor in the choice for the new dryers for the Hoops compressor room location.

Read more: Tailor-made DRYPOINT RA 600 solution

There are no magic wands in this business

Since 2003 BEKO TECHNOLOGIES have nearly trebled sales in the UK. Many companies operating in the competitive compressed air industry had a serious blip around the recession of 2009/2010. BEKO did not take a single backward or level point on the sales chart, just steady continuous progress.

Read more: There are no magic wands in this business

BEKO at Airtech 2012

BEKO TECHNOLOGIES Ltd will be at the AirTech 2012 exhibition at the NEC, Birmingham from 17th-19th April. Please come and see us in Hall 3a, stand A216


Our main feature this year will be on desiccant dryers and we will be showing a HOC-R 1700 C. The denomination HOC means that the desiccant drying material is regenerated by the using the heat generated in the compression process thus making this type of dryer the most energy efficient at the same time as being able to generate a constant dewpoint.


We will also be showing our Mobile METPOINT measuring station which in a single unit can measure the pressure, flow, velocity, dewpoint and remaining oil content in compressed air. This product is currently a service only unit which is available for measurement carried out by BEKO technicians

Read more: BEKO at Airtech 2012

BEKO TECHNOLOGIES launched the BEKOKAT Catalytic Converter in 2008

BEKO TECHNOLOGIES launched the BEKOKAT Catalytic Converter in 2008 realising that there would not be a flood of sales but none the less expecting to see a slow take up of the product notably by companies who had a need for 100% oil free or better than ISO 8573 Class 1 quality. The reason for this expectation was the growing realisation that however good an oil free compressor can be, the quality of air entering the compressor is variable. BEKO using their METPOINT OCV device have measured Class 3 remaining oil content after an oil free compressor with the unit working perfectly and not adding any hydrocarbon to the system.

Three years down the line and over 100 units sold. BEKO are optimistic that the success of the existing units in the field together with the increasing requirement to audit the quality of compressed air will accelerate the growth in sales. Chris Norris Service Manager at BEKO UK comments “As a service person I shouldn’t be happy because I have had no service revenue from the installed base this year and only a little last year but it is really pleasing to know that on at least one case, serious contamination was prevented in a food factory when an oil separator dump occurred. We expect this product to be very low service costs on average. There will be the replacement of the catalyst every 20,000 hours but annually virtually nothing apart from checking safety systems and valve operation “.

Read more: BEKO TECHNOLOGIES launched the BEKOKAT Catalytic Converter in 2008

A paradigm can be shifted

When a plant engineer has to purchase a compressed air dryer his first thought will be what dewpoint is required. This will then depend on the application; specifications of machinery using compressed air will guide the engineer as will codes of practice such as BRC/BCAS for the Food Industry. If a negative dewpoint is required then a desiccant dryer will be selected. The genre is likely to be well known to the engineer and will attract a significant capital and running cost particularly if a lower capital cost heatless dryer is selected. However the solution is classic and cannot be faulted. The alternative scenario is for the positive dewpoint at typically +2º C and again the engineer will know that a refrigeration type dryer will handle this application with relatively low capital and running cost but that he must take care not to have pipework going below the dewpoint temperature.

There is a third solution which is mostly ignored or perhaps is not fully understood. This is the membrane type dryer and BEKO TECHNOLOGIES offer their DRYPOINT M range of membrane dryers alongside their EVERDRY and DRYPOINT RA, desiccant and fridge dryers. Steve Riley, General Manager of BEKO TECHNOLOGIES in the UK and Ireland comments “I was amazed at how many DRYPOINT M’s were being sold when I joined the company. A little research told me that 20,000 units had been sold since launch, in the UK alone. I could guess that many purchasers were “Original Equipment Manufacturers” because the main benefit I had in my mind was the very small footprint. I knew also that some compressor manufacturers had a packaged unit which included a membrane dryer but I couldn’t for the life of me guess the diversity of applications”.

He was correct in his thinking but later researches told him that there were very good reasons for engineers to select DRYPOINT M just on overall cost. This needs some explanation as what tends to put most engineers off is waste and it is a fact that membrane dryers lose a quantity of compressed air in purge loss. However this is not fixed and BEKO’s sales people have software which enables the choice of a low capital cost, higher purge loss unit or a higher capital cost and lower purge loss unit of energy cost is important (and when isn’t it). Riley comments again “I don’t think anyone will be too surprised to know that one of the other statistics I wanted to understand quickly was what maintenance revenue I would get from all these units. It was an unbelievable number­Nothing, £0 and it is not a short lived product that if a problem should occur it is more economical to throw it away. It is possible to destroy the membrane by having too much liquid ingress but BEKO’s experience and design team have produced a dryer with close coupled separator and drain to protect against this eventuality.” In fact there are no wearing or replaceable parts.

Read more: A paradigm can be shifted