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Electrical corrosion protection
Electrical corrosion protection – Prevent hydrogen sulphide corrosion in electrical and electronic equipment
Super CORR A is a proven and cost-effective way to prevent or inhibit corrosion from destroying electronics and electrical components. Adverse work environments where corrosive gases such as hydrogen sulphide are found, can cause severe corrosion and rapid deterioration of electronic components and equipment, including connectors and switches.
Lost productivity and revenue caused by plant and equipment downtime
Corrosion, in its many forms, costs both private and public sectors hundreds of billions of Euros a year to repair or replace electrical, electronics, or avionic components because of failures caused by corrosion. While all metals corrode, due to a number of different factors, there is no simple or single solution to the overall corrosion problem. However there are some very cost effective and proven ways to prevent corrosion and failures caused by corrosion and thereby reducing or eliminating associated costs and increasing safety which should be foremost in the mind set of any preventative maintenance programme manager.
Super CORR Awas specifically designed to lubricate and prevent corrosion in electrical fittings and connectors; electrical and avionic harness assemblies and connectors; electrical and electronic switches; close tolerance and dissimilar metal components; lighting connectors and sockets. A unique non-flammable “self-healing” ultra-thin film lubricant with a proprietary corrosion preventive compound that will not harden or crack, is not a wax or oil-based product and is formulated without sulphates, chlorides or halogens.
Super CORR A inhibits corrosion caused by exposure to both fresh and salt water moisture as well as the corrosive vapours from Sulphur dioxide (SO2), Nitrogen dioxide (NO2), Hydrogen Sulphide (H2S), Ammonia (NH3), and Chlorine (CL12) based gases found in waste water and sewer treatment plants, pulp and paper mills and plants, chemical and petroleum plants, maritime industry, aircraft/airline industry, military equipment including ships, aircraft, and rolling stock, auto industry, farming and agriculture industry, and the list goes on.
Super CORR A extends the working life of electrical components and systems and other critical items by preventing the deterioration and/or failure caused by corrosion and can significantly reduce downtime, operating and maintenance costs as well as enhance safety. An ultra-thin film, water displacing lubricant and corrosion inhibiting compound Super CORR A has undergone extensive testing by Battelle Labs as well as the U.S. Air Force and meets MIL-DTL-87177B (revised MIL-L-87177A) specification. SuperCORR-A is used by NATO (NATO NSN 8030-99-226-6966) to protect avionic, electrical, electronics, electrical switches and connectors and components from corrosion in both the military and civilian aircraft. Savings for the U.S. government alone is estimated to be in excess of $50 million per year.
Super CORR Aprovides a superior lubrication coefficient and protects components against moisture, wear, general and fretting corrosion, surface static electricity, corona, and other electromigration problems. The super thin non-flammable lubricant film is only 7 microns (0.00028 inch) thick and is formulated to meet the RoHS directive. It is unexcelled in preventing deterioration and contamination on all surfaces of electronic equipment.
The question for you is: What is the cost of NOT using Super CORR A in your preventative maintenance programme?
FURTHER INFORMATION
Please visit our website https://www.envirotech-europe.com/supercorr-a for for information about other uses and applications for Super CORR A.
Visit www.envirotech-europe.com/applications-and-case-studies for information about uses and applications for all EnviroTech Europe products.
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ProSolv®5408e vapour degreasing solvent cleaner for flushing refrigeration pipeline systems
Vapour degreasing solvent cleaner for flushing refrigeration pipeline systems
Concerns connected with the challenging environmental profile of traditional refrigerant gases have led to changes in legislation which are a driving factor in phase-outs and bans on the use of some gases to remove the older materials typically with high ozone depletion (ODP) and global warming potential (GWP). Systems can be replaced or refurbished with new models using compressors able to use more sustainable and acceptable gases. The evolving trend to newer refrigerants continues as the chemistries develop. The refrigerant R-22, which itself was an improvement over earlier refrigerants, is phased out and replaced with R-410a and other alternatives based on HFOs are being marketed.
Retrofitting of current refrigeration systems to accommodate the new developments is not straightforward as most refrigerant gases are not cross-compatible, so the necessity to completely remove all traces of the older versions from the system, including refrigerant lines is essential.
Of course, where possible it’s best simply to replace existing lines with new ones. However, it’s not always possible to do this cost-effectively, especially when the old piping runs under floors or through walls. In such cases thoroughly flushing existing pipework is especially important because even tiny traces of impurities left in the lines can damage new equipment and lead to compressor failure.
THE PERFECT SOLVENT FOR FLUSH CLEANING REFRIGERATION PIPEWORK
Your first step to proper pipework flushing is to select the right solvent. The solvent you choose must be highly effective at dissolving oil grease and other contaminants, to ensure that all residue is removed from the pipes and must be sustainable, environmentally friendly and comply with current legislation.
ProSolv 5408e is the ideal solution to this problem with a profile of properties and advantages making it perfect as your solvent of choice for refrigerant pipeline flushing.
• No flash point Non flammable liquid.
• High specific gravity gives a high soil suspension loading.
• High solvency strength with a KB value of 98.
• Powerful cleaning agent that can flush lines fast, dissolving oil and grease releasing soils from the inner surfaces of pipelines and fittings
• Volatile for fast evaporation. Removing ALL solvent from the pipework after flushing is vital, very volatile so evaporates fast.
• Environmentally responsible. ProSolv 5408e is sustainable and kind to the environment with very low global warming potential, zero ozone depleting potential (ODP).
• Safe for operators when user conditions are followed.
• Economical as it is easily distilled for reuse. No testing or stabilisation required.
PROCEDURE FOR FLUSH CLEANING REFRIGERANT PIPELINES WITH ProSolv®5408e
Of course, simply replacing old piping is the only way to be 100 percent sure that your lines are clean. But in retrofit situations where complete replacement is not possible, flushing the lines with ProSolv 5408e solvent is the best alternative solution for the protection and long working life of your refrigeration system upgrade.
1 – Remove any obstacles. Any equipment and components such as valve, filters and expansion valves that might obstruct the line should be removed prior to the purge.
2 – Pre-flush. This will dislodge any loose debris from the sides of the lines enabling more effective use of the solvent, oil free air or nitrogen at 120 psi is recommended. It’s also good practice to oscillate the pressure to encourage dislodging of debris.
3 – Preparing the pipework. Reducing the length of piping can be more effective due to the pressure loss in long lengths. Section the operation into 15 metre lengths by cutting pipes where necessary. One end of the pipe must be fitted with a connector for the pipe to the nitrogen supply while the exit needs a restrictor valve to allow variable pressures to shock loose particles from internal walls.
IMPORTANT – Flushing with solvent. Refer to ProSolv 5408e Safety Data Sheets for advice on operator protection using solvents.
4 – Safe working. Full PPE with suitable eye protection goggles and gloves must be worn. Solvent fumes are heavier than air and exposure levels can easily be reached working in pits or enclosed spaces. Always institute a ‘buddy system’ and use air fed face masks with attached line.
5 – Delivering solvent. Use a drum pump electric or hand operated with a flexible tube connection for delivering the solvent to the open end of the pipe or tubing to flush the internal surfaces. Using a fresh drum of ProSolv®5408e connect drum pump and the delivery tube to the end of pipe/tube to be cleaned using a pre-fitted screwed or compression fitting.
6 – Drainage and Testing. The drainage end of the pipe or tube should be fitted with a flexible tube into a tank or drain sump allowing samples to be taken in a glass bottle or tube at regular intervals to be sure when no particles or soils are being expelled. The colour of the solvent will change as oil and soluble contaminants are removed and flushing must continue until the flow is totally clear and water white.
7 – Post-flush. ProSolv 5408e solvent is volatile so will dry completely using an oil free airline or nitrogen supply connected to the end of the cleaned pipe/tubing.
8 – A wipe of the pipe/tubing surface at the inlet and outlet using solvent saturated lint free cloth completes the cleaning. If not connected immediately to other parts of the system enclose both ends of cleaned item to prevent recontamination.
Used ProSolv 5408e should not be reused for flushing but can be recovered for reuse by a simple distillation process. Removal from site should use licensed disposal companies.
Further information:
For more information and advice please contact us by telephone on +44 (0) 20 8281 6370 or use our contact form. All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
ProSolv 5408e is not just flushing refrigeration pipeline systems,
https://www.vapour-degreasing.com/prosolv5408e/ for information about other applications.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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Related Posts
VOC Exposure Monitoring
Exposure monitoring – Reassurance that your equipment is functioning within agreed safety margins.
Envirotech Europe has always considered it has a duty of care to its loyal and new customers and VOC monitoring is an issue we take seriously. As an employer, it’s your job to ensure that you correctly control the personal exposure levels of staff to a wide range of chemicals, substances and even radiation.
The Control of Substances Hazardous to Health (COSHH) Regulations 2002 places a duty on the employers to undertake assessments to evaluate the risks to health when using hazardous substances in the workplace.
We have portable test equipment that logs the Volatile Organic Compound (VOC’s) content in the air from various strategic positions around your degreasing equipment, including the operator position.
This kit is based on very accurate photoionization detectors (PID) designed to constantly log the quality of the atmosphere and keep your workers safe.
We would generally test for a full shift, analyse the data and report back within a few weeks with any suggestions for improvement.
Reassurance that your equipment is functioning within agreed safety margins and that any emissions into the working environment surrounding the machine are within prescribed limits.
A check that the ProSolv 5408e, EnSolv® CC-A or ProSolv system is operating economically and with the minimum of wastage. We can still carry out the testing for you even if you are using an alternative solvent.
FURTHER INFORMATION
For more information please contact: sales@envirotech-europe.com
Please visit www.envirotech-europe.com for information about uses and applications for all EnviroTech Europe products.
For more advice, please telephone us on +44 (0) 20 8281 6370 or use our website contact form.
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Latest News
New study disputes TLV for nPB
A detailed comprehensive review of 1-bromopropane studies confirm current recommendations by EnviroTech for occupational exposure levels for safe usage of EnSolv® as a vapour degreasing solvent.
view/ download this document in Adobe Acrobat Format |
Update on a safe occupational exposure level for 1-Bromopropane
Prepared for EnviroTech Europe, Ltd.
Prepared by Dr. Mark Stelljes
SLR International Corporation
September 2014
Executive Summary
This paper re-evaluates EnviroTech Europe’s (ETE’s) current occupational exposure level recommendation of 100 ppm for 1-bromopropane (1-BP) [106-94-5] in the vapor degreasing industry in light of the recent lowering of the ACGIH Toxicity Threshold Value (TLV) from 10 ppm to 0.1 ppm. The 0.1 ppm value is based on a study of 86 workers exposed to 1-BP during its manufacturing in China in four different facilities. The authors reported significant effects at all 1-BP exposure levels down to 1.28 ppm. The 1-BP in these facilities had concentrations of the isomer 2-bromopropane [75-26-3] (2-BP) present as a contaminant at about 10-20 times the level sold for vapor degreasing.
There are several factors that undermine the conclusions reached in the paper that a concentration of 1.28 ppm resulted in toxicity in exposed workers. These factors were related to:
(1) Exposure measurements – passive rather than active samplers were used, and concentrations varied by more than tenfold for the same activity.
(2) Exposure via other routes in addition to inhalation – described worker activities indicate substantial dermal exposure, which increases the overall dose of the chemical relative to just inhalation exposure.
(3) Exposure to other chemicals – at least 20% of the workers were previously exposed to 2-bromopropane
(2-BP), and no testing was done for other chemical exposure.
(4) Statistical methods and interpretations – instead of using paired patient-exposure data, authors categorized exposure into groups (e.g., high, low); this resulted in apparent statistical relationships that may not be biologically relevant.
(5) Lack of robust dose-response relationships – when evaluating typical doseresponse relationships, only a single parameter (vibration sense in the toes, a subjective parameter) was shown to be significantly different across all dose levels.
(6) The outcome of the subjective vibration sense test was in part dependent on the testing doctor – this dependency should remove the test and its results from consideration in the paper as a scientifically defensible endpoint.
When all of this information is considered as a whole, it is unlikely that the 1.28 ppm lowest effect concentration reported in the paper is accurate. The interpretations in the Li et al. study are inconsistent with expectations based on the ways in which 1-BP acts in rodents relative to humans. Studies on how 1-BP acts in the body of rats and mice and studies on metabolism of the chemical in humans indicate that humans should be no
more sensitive to 1-BP than either of these rodents.
Based on the weight of evidence available for the toxicity of 1-BP in humans and rodents, there is no credible scientific reason to target an occupational concentration as low as 10 ppm or 0.1 ppm. ETE’s current recommendation of 100 ppm should be maintained, and employers together with vapor degreasing personnel should not be concerned about the much lower levels recommended by the ACGIH.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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ACGIH Threshold For N-Propyl Bromide Solvents
What You Should Know About The ACGIH’s Threshold For nPB Solvents
If you work with industrial chemicals, materials or solvents then you may have heard of the American Conference of Governmental Industrial Hygienists (ACGIH). The ACGIH is a scientific, but non-governmental body of industrial hygienists that publishes Threshold Limit Value (TLV) opinions on chemicals such as n-propyl bromide the base solvent for EnSolv formulations. These TLV opinions are not held to the same standards as limits set by an organization such as OSHA in the USA, but are still published in books available on the ACGIH website. You or someone else in your company might be familiar with these TLVs.
In March 2014, the ACGIH published a new TLV for n-propyl bromide (1-bromopropane). This TLV was set at 0.1ppm, and refers to “commercial grade bromopropane (99% 1-BP with 0.1%-0.2% 2-bromopropane).” 2-bromopropane is also known as isopropyl bromide (iPB). Modern nPB manufacturing processes result in nPB with <0.01% iPB contamination, which is of a pharmaceutical quality.
The 1-BP (nPB) properties referenced by the ACGIH rely to some degree on information first published in 1999 and 2000, which contains information that is out of date and inaccurate when referring to today’s purity of 1-BP. Some of the things to keep in mind regarding ACGIH TLV opinions include:
- TLVs are not determined by speaking openly with scientific experts, but in closed-
- Door meetings.
- There is no scientific consensus backing up ACGIH’s findings.
- ACGIH TLV opinions may involve conflicts of interest and uncertain science.
- The ACGIH is a not-for-profit organization that funds its activities by selling books; it is not a government-sanctioned panel of experts.
The IBSA et al. v. ACGIH lawsuit documents a number of these concerns involving the ACGIH and how they determine their TLV opinions. There is nothing worse than misinformation in our field – not only are safer chemicals such as nPB made to seem dangerous, but chemicals that are unsafe or unsuitable might be seen as acceptable alternatives.
It is of great concern to that in spite of the very demanding regulations already in effect in Europe some manufacturers of very expensive “new” fluorocarbon alternatives to the less expensive conventional solvents choose to imply that recent ACGIH recommendation for a reduction of exposure limits will have legal effect in Europe. This wrong and no credence should be given by users to any “recommendations” except those issued by government regulators.
The EU will establish DNEL (Derived No Effect Level) recommendations under the REACH legislation in due course and until these are issued all properly designed and maintained equipment is perfectly safe for use for vapour degreasing and any suggestion to the contrary may cause unnecessary confusion and restrict the use of this very useful technology.
EnviroTech Europe urges you and others in your company not to rely solely on TLVs, but rather on official and informed sources instead (See US EPA SNAP Approval for 1-BP). For more information on the properties of nPB and related solvents, please visit www.vapour-degreasing.com.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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Condensation cleaning, the future for solvent degreasing
Innovation driven by legislation
Vapour degreasing is the simplest but most effective degreasing and cleaning process. It has, until recently, been subject to little change since it was first invented in the early part of the last century. The name for the process is a misnomer as the cleaning is actually achieved by solvent vapour condensing on the cooler target parts and the hot liquid solvent dissolving oil and removing dirt.
Vapour degreasing is a mature technology on which legislation is now effecting changes so fundamental that the more accurate name for the process “Condensation Cleaning” should be used to reflect the way in which it works. More importantly the alternatives in equipment design and fundamental differences in the technologies which guarantee its continuing use in the future need to be considered and understood.
In Europe the United States and in other advanced industrialised economies increasingly stringent legislation to control emissions of VOCs and especially solvents has led to new formulations for paints and other coatings where water replaces most of the solvent. In the early days of these changes the quality of the coatings was not as good as solvent based coatings but innovation has driven the development of new polymers and the results are now as good as, if not better than, the solvent based originals.
As with coatings, cleaning systems have had to change. With increased legislation concerning the regulation of health and environmental safety uses of solvent have been targeted and alternatives are encouraged by the relevant authorities and law makers often without serious consideration of unintended consequences.
For example water based cleaning is the obvious alternative but this has many disadvantages compared to condensation cleaning as although the machines are simple and relatively cheap the processes require multiple tanks for immersion or spray processing or long programmed cycles in batch machines for cleaning, rinsing and drying. Water based processes are slow, energy intensive and occupy more floor space than condensation cleaning equivalent where only one tank with small footprint is needed delivering shorter process times and most importantly using minimal energy.
The ideal cleaning process would be Condensation cleaning with water but due to the physical characteristics of the vapour/steam and the inability to carry onto the surface of the targeted parts surfactants to remove the oil, grease and soils and the difficulty of rinsing and especially drying this will only ever be a dream.
Halogenated hydrocarbons are the solvents of choice for Condensation cleaning. The process is essentially simple. A tank with a sump to contain the solvent, heaters at the base and condensation coils around the top section to control the height of the vapour is all that is needed. When heated in the sump halogenated solvents produce, in most cases, a saturated vapour between 3 and 4 times heavier than air at a temperature greater than the ambient temperature of the parts to be cleaned. This allows the solvent vapour to condense on the surface. The condensate dissolves the contaminants such as oil, greases and soils returning the used solvent into the sump of the machine for recycling into vapour which continuously condenses onto the parts until they have achieved vapour temperature when, with no further condensation, the process is complete. Parts removed from the cleaning machines are very clean, warm and dry.
The most common halogenated solvents, in use for commercial purposes, are non-flammable so present no risk in this process. Perchloroethylene, used mainly for dry cleaning, methylene chloride used widely in paint strippers and trichloroethylene used for vapour degreasing were the original materials used based on chlorine chemistry. However continuing concern about the environmental impact and danger to operators by exposure to chlorine based solvents, especially trichloroethylene, has led to a continuing search for safer alternatives.
Genklene from ICI and Chlorothene from Dow Chemicals, both of which were based on another chlorinated solvent 1.1.1. trichloroethane, were to become ubiquitous in the mid part of the last century as a much safer, non carcinogenic replacement for trichloroethylene. An excellent solvent safe for users but which, with increased awareness of the environmental impact of solvents, proved to be depleting the protective ozone layer around the Earth was subsequently banned. Trichloroethylene was then allowed to be used again as a substitute for trichloroethane but with increased restrictions on its use, even though safer materials were already available. With the development of the REACH legislation in Europe, which now classifies trichloroethylene as a human carcinogen, usage will be even more difficult but will probably be authorised in machines which control factory emissions to very low figures close to zero.
Meanwhile n-propyl bromide (nPB) based cleaning solvents such as EnSolv were developed in the United States as a drop in replacement for the ubiquitous 1.1.1.trichloroethane. nPB has an identical profile, stable, non-flammable, with the same physical characteristics such as boiling point and specific gravity and it is an excellent cleaning solvent but without the potential for ozone depletion.
During this time new halogenated blends using trans1.2 dichloroethylene, a highly flammable solvent with similar chemistry to trichloroethylene were also developed for condensation cleaning. The trans 1.2 dichloroethylene is blended with a variety of different fluorocarbon liquids which are not suitable as cleaning solvents, as they have very low solvency, but are used in these blends as a fire retardants. An extremely expensive answer to a simple problem, already solved by the development of machines able to safely use the cheaper solvents.
As with all legislation for chemical use regulation and restrictions drive development of associated processes and equipment. The most important developments in affordable machines to use solvents for condensation cleaning use two different approaches and raise difficult questions as to which is the best most economical and simplest in use.
The single tank hermetically sealed machines favoured by mainly German manufacturers uses a process tank to contain the solvent and a separate storage tank/vapour generator. Baskets with parts to be cleaned are loaded from the top and lowered into the process tank. A lid then closes over the tank and is hermetically sealed. Solvent is pumped into the process tank. Baskets are immersed in the solvent where agitation, ultrasonics or pumped liquid is circulated through the parts.
When the immersion process is complete solvent is pumped to the storage tank and vapour fed to the process tank from a vapour generator for rinsing and drying. Condensing coils/panels controlling the vapour height are linked to coils located within the vapour zone which, when the cycle is complete, collapse the vapour. The process tank is emptied. The saturated air/solvent from the process tank is then recycled through carbon absorption units to remove traces of solvent from the air until the concentration is below 2 grams per cubic metre when the lid opens automatically for the basket of parts, clean and dry, to be removed and replaced with a further basket.
Variations within the hermetically sealed tank are possible using sprays of cold or hot condensed solvent, immersion with or without ultrasonics and revolving baskets to cover most of the problems experienced when processing machined and fabricated parts. Continuous external distillation of the contents of the vapour generator is also an option depending on contamination
The alternative technology is much simpler and cheaper using well tried techniques not requiring the long recovery times of the one tank processes. This is favoured by U.K. based manufacturers. The multilevel system shown in the diagram uses a standard vapour degreasing tank design with a sealed loading section above the process tank.
Work baskets are fed to the load section from a hoist or conveyor. The loading door is then pneumatically sealed to hermetically isolate the process. The sealing lid on the process tank is opened and the basket lowered into the cleaning tank which can be simple condensation cleaning with vapour generator below or an offset generator can be used with the lower section being filled with clean solvent for immersion cleaning with or without ultrasonics or power sprays. Revolving baskets can also be added to improve cleaning in blind or through holes or oil ways in castings and fabrications.
When the process is complete the basket rises to the freeboard area where the condensation coils are located and parts allowed to drain and dry. The tank seal opens to allow the basket into the load section while the lid closes again across the process tank. A fan is then activated which produces a negative vacuum in the load area. The loading door is then partially opened to allow a flow of air through the loading section which is exhausted to atmosphere or can be recycled through carbon absorption systems if no external exhaust is preferred. As baskets entering the loading space contain parts drained and dried only very small amounts of solvent are carried in the exhausted air which is monitored to ensure compliance with local legislation. When this is achieved the door opens fully for removal of basket. The loading section can be fitted with top or side sealed doors allowing baskets to flow through on conveyor systems or be loaded from hoists. No solvent enters the work area.
Both processes will produce parts cleaned to the highest standards but the choice of which offers the best solution needs a little more consideration.
The single tank process is complicated with the need to move liquids in the machine. It is relatively slow as the carbon adsorption process needs to remove high levels of solvent from the recirculated airstream from the process tank. This is inefficient as adsorption rates for carbon fall rapidly with increasing saturation. Final levels of solvent in the tank when the lid opens will be dragged into the workshop and the area in which the operator is working. Long process cycles reduce throughput.
The simpler multilevel systems where movement of liquids is not required are more efficient and offer much faster process times. Cost of manufacture is also cheaper as no liquid movement is involved. The extracted loading section ensures no leakage of solvent into the work area which offers complete safety for operators and factory staff. The disadvantage of the multilevel machine is the height of the equipment compared to the single tank machine. This will often require the equipment be installed in a pit for easy access.
Both designs of process machines fully comply with the emission regulations of the EU and U.S authorities. Which to choose will depend on many factors which should be discussed with both the equipment and solvent suppliers who have the experience to advise on which offers the best process for the application. Equipment and solvent must work together and it is advisable to ensure that the suppliers work closely together to offer a package with high levels of responsible care and product stewardship to ensure the best and safest installation.
The Condensation cleaning process still gives the highest levels of economical cleaning with minimum energy usage, low footprint on the factory floor, safety for the operator, and high production rates with low solvent usage or environmental impact. With the new generation of sealed cleaning machines its future as the process of choice is assured.
Syd Treacher is a consultant for industrial cleaning processes
Drawing by kind permission of CC Hydrosonics Ltd www.cchydrosonics.com
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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Samuel Banners Ltd appointed EnSolv distributors for UK
CONTENT ON THIS PAGE IS RETAINED FOR INFORMATION ONLY
DUE TO n-Propyl bromide now being included in Annex 14 of REACH
EnviroTech Europe Ltd (ETE) continue to publish it as historical information and to record changes occurring in legislation which have affected decisions on formulations and equipment used in vapour degreasing - the most effective, quickest, flexible and cheapest cleaning system used in industry.
EnSolv® invented and patented by EnviroTech has been a market leader all over the world for vapour degreasing. It is based on n-bromopropane (nPB) which now cannot be used as a vapour degreaser within the UK or EU without authorisation.
Archived information about EnSolv® can be found using the Discontinued Products & Resources navigation menu on this page.
Using experience accumulated over 40 years supplying and supporting users of the vapour degreasing process ETE specialists have developed “drop in” alternatives:
ProSolv®, ProSolv5408e® and EnSolv CC-A® give the same or improved level of performance and economy as the original EnSolv® products.
Please contact our advisers who are available to discuss your needs and propose the best replacement product.
Or please click here to return to our vapour degreasing products homepage for information about our current products.
EnSolv is the only realistic safe, economical alternative to the carcinogen trichloroethylene for vapour degreasing.
Responding to the increasingly stringent legislation on solvent usage EnviroTech have over the years reacted to the changes and introduced and developed the solvent minimisation programme which gives help and guidance to users in ways to reduce the amount of solvents used in vapour degreasing to comply with the EU Solvents Emission directive. This is achieved by a combination of working with partners to improve equipment, better solvent handling and more efficient use of the vapour degreasing process. Training staff in proper loading of work baskets, correct timing procedures and many more detailed improvements which when combined not just reduce solvent usage but make it safer for the operator and the environment while considerably reducing costs for users. After discussion with many potential distributors to find a partner with the same ethical standards, passion for customer service and training and with the high level of knowledge to service and support our customers we are very pleased to announce Samuel Banner Ltd will be the distributors for EnSolv in the UK from November 2013.
Established 150 years ago Samuel BANNERS Ltd were granted the patent for White Spirit and from that time they have continued to be involved with solvents manufacturing and distribution. Their extensive storage and distribution depots will offer a fast and efficient delivery for EnSolv throughout the U.K. The respected technical sales team at BANNERS are active in precision engineering, aerospace, medical, electronics and optical industries where critical cleaning is required and have an in-depth knowledge of vapour degreasing to give advice and support to all EnSolv customers. EnviroTech Europe Ltd and Banner Chemicals are both committed to Responsible Care and will continue to advise on legislative or other changes and research for our products to meet the highest quality standards.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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A Real Fire Suppression System Problem and Your Electronics and Computer Systems
HFC-227ea is replacing Halon 1301 as the gaseous fire suppression agent for data processing and electronic equipment.
However when activated in a fire situation HFC-227ea will decompose to produce Hydrogen Fluoride. This is a real and ongoing concern. Why? Because Hydrogen Fluoride causes major corrosion problems for electronics and connectors. You may save your equipment but for how long?
In 2004 the Institute of Research and Construction in Canada published a study on HFC-227ea (C3F7H) paper, Thermal decomposition products from fire suppression with HFC-227ea in an electronic facility 1. That study was followed by Corrosion of Electronic Components by Hydrogen Fluoride (HF)2 in 2008 by the Fire Research Program of the National Research Council of Canada. Both studies were published in the Journal of Fire Protection Engineering. These two in depth studies address and prove the very definite concern of Hydrogen Fluoride (HF) corrosion after a gaseous HFC-227ea fire suppression system is used in computer and other electronic environments.
The first published study by the National Research Council of Canada (NRC) in 2004 showed that HFC-227ea, a gaseous fire suppressant, a replacement for Halon 1301, produced at least 5 to 10 times more HF than Halon 1301 under similar fire conditions, however, there was no information available on the amount of thermal decomposition products generated during fire suppression with halocarbon agents in an electronic facility.
The Corrosion of Electronic Components by Hydrogen Fluoride (HF) paper published in 2008 describes in detail the HF corrosion and provides the test results showing the corrosion damage due to HF. While HFC-227ea is a very good fire suppression system, the HFC-227ea thermal decomposition byproduct, Hydrogen Fluoride, would cause serious and expensive short and long term extensive corrosion damage by the condensed Hydrofluoric acid. Hydrogen Fluoride corrosion severely affects computers, servers, switching circuits, and other electronics, connectors and electromechanical devices.
To prevent corrosion caused by Hydrogen Fluoride, as well as other chemicals, acids, salts, and water which can be deposited during the activation of fire suppression systems or rapid humidity changes, all the electrical and electronic hardware, boards and connectors should be sprayed or coated with SuperCORR A, an ultra-thin film lubricant and corrosion preventive compound that is non-hardening and will not crack. SuperCORR A is a water displacing non-flammable compound that will not interfere with any type of electronics or avionics and prevents corrosion.
While a fire suppression system utilizing HFE-227ea will put out the fire, SuperCORR A will protect and prevent damage to the electronics or avionics caused by exposure to the Hydrogen Fluoride produced as a byproduct during the fire. SuperCORR A Mil-L-87177, is also effective in preventing damaging corrosion by atmospheric gases such as Sulfur dioxide (SO2), Nitrogen dioxide (NO2), Hydrogen Sulfide (H2S), Ammonia (NH3), and Chlorine based gases (CL2) in Class III mixed gas tests and fresh or salt water systems.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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Maintenance engineers please help us to improve our product for you.
Corrosion Protection
SuperCORR A is the best lubricant with corrosion protective additives on the market and is widely used by the military and for industrial maintenance.
The website gives technical information and extensive user experiences in many areas. Currently SuperCORR A is supplied for maintenance purposes in large 16oz aerosols which are very convenient and economical for use in factories, offices or maintenance areas but are bulky for use by mobile service engineers where the cans need to be carried in tool kits.
SuperCORR A is such a useful tool for service engineers, displacing water and leaving a dry lubricating film which protects surfaces from corrosion under even the most extreme conditions that we are considering a smaller 3 or 5 oz pack which will be easier to carry and allow access in tight locations.
Tell us how you use SuperCORR A and let us have your views on whether a smaller can will make your job easier. We welcome your comments.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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An ounce of protection is worth a pound of cure
“An ounce of prevention is worth a pound of cure.”
Benjamin Franklin said that in 1736 and it is as true today as it was then.
One of the most important opportunities for savings today is the prevention of failures caused by corrosion. Corrosion leading to the repair of or the complete re-placement of failed parts or components, a pound of cure, which is preventable, equates to increased production costs and a decrease in the bottom line profits.
SuperCORR A is the ounce of prevention that will save your company money; man hour costs and parts in the re-pair or replacement of equipment that failed because of corrosion issues that are easily preventable. Whether it’s an electrical connection that failed because of corrosion which caused a cooling pump to shut down that caused a bearing to overheat and burn out that brought an entire production line to a halt or it’s the floor of an airliner that was so corroded that the aircraft was grounded for extensive repairs, corrosion is a serious and a very expensive problem. A problem that is preventable.
An ultra thin-film lubricant with corrosion preventative compounds that displaces water, SuperCORR A has been extensively tested on metals and electronics and has shown extremely good results in preventing corrosion.
The question to ask yourself is: What is the cost of NOT using SuperCORR A to prevent corrosion?
If you were able to say we are saving £100 a day by using SuperCORR A by not having a failure caused by corrosion would that be a good thing? How about saving a £1000 a day? A saving that would directly influence the bottom line.
You have essentially two choices:
1). Being proactive about corrosion and doing something simple and very cost effective to prevent it,
2). Do nothing and take your chances that the cause and the associated costs of the next lost production time are not directly related to a preventable corrosion problem.
Being proactive about corrosion and doing something that is cost effective and protects the bottom line is nothing but a positive. Remember the cost of lost productivity is directly related to lost profits.
CORR-EX corrosion control solutions have the answer to corrosion prevention for all industries and utilities.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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SuperCORR A Fully compliant with RoHS Directive
SuperCORR A is fully compliant with the requirements of the RoHS Directive 2002/95/EC – Restriction of certain hazardous substances in electrical and electronic equipment.
The restricted chemical substances are:
Lead
Cadmium
Mercury
ChromiumVI
Polybrominated biphenyls
Polybrominated diphenyl ether
For compliance equipment must contain no more than 1000ppm (100ppm for Cadmium) of these substances
SuperCORR A has been tested and confirmed to be compliant so can safely be used on already compliant electrical and electronic equipment which will remain compliant.
We can provide you with a Material Safety Data Sheets, independent laboratory reports, product samples and technical assistance.
For more information or advice please telephone us on +44 (0) 20 8281 6370 or use our contact form.
All products are supplied and supported by EnviroTech Europe Ltd. Manufactured in the United Kingdom and available on short delivery times through our dedicated team of distributors worldwide.
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