UWT Level Controls Win the Approval of the European Hygienic Engineering & Design Group (EHEDG)
The European Hygienic Engineering & Design Group (EHEDG) is a consortium of equipment manufacturers, food industries, research institutes as well as public health authorities. It was founded in 1989 with the specific aim to promote hygiene during the processing and packing of food products. The principal goal of EHEDG is the promotion of safe food by improving hygienic engineering and design in all aspects of food manufacture.
EHEDG actively supports European legislation which requires that handling, preparation, processing and packaging of food is done hygienically using hygienic machinery and in hygienic premises (EC Directive 2006/42/EC for machinery, EN 1672-2 and EN ISO 14159 Hygiene requirement.)
Hygienic Design Principles
Do’s:
•Ensure that the materials and surfaces food will come into contact with are suitable (eg corrosion resistant, non-absorbent, unpainted and easy to clean) – such materials must not be likely to break, crack or fracture in normal use.
•Ensure surfaces food will come into contact with are made of non-toxic materials which will not transfer any odour, taint or taste to the product.
•Ensure permanent joints are smooth where joints are in the same plane or curved where they are not.
•Ensure dismountable joints have a true and hygienic fit.
•Ensure projections, edges and recesses are kept to a minimum.
•Ensure internal curves allow thorough cleaning and, where necessary, disinfection.
•Ensure all fluids, including those from foods and cleaning the machine, can be easily discharged from the machine.
•Ensure shafts and seals are self- or product lubricated or use food grade lubricants – they can be cleaned and, where necessary, disinfected.
•Ensure appropriate materials are used in the machine construction – there may be a balance between ease of access for effective cleaning indicating ordinary steel could be used an lack of such access (eg in enclosed plant) indicating stainless steel could be used.
Don’ts
•Don’t allow dead spaces or bends in pipework in the food area which allow product to accumulate. If this is unavoidable, ensure good drainage and cleanability.
•Don’t allow bearings in the food area unless this is unavoidable – use food grade lubricants and ensure cleanability and, where necessary, disinfectability.
•Don’t use screws, screwheads and rivets in contact with food.
•Don’t allow liquids, pests or organic matter to enter parts of machines which cannot be cleaned.
•Don’t allow ancillary substances (eg lubricants) to come into contact with the food.
EHEDG Document 22
General hygienic design criteria for the safe processing of dry particulate materials
Dry food processing and handling requires equipment that is different from those typically associated with wet and liquid products. This is the first in a series of documents that goes beyond equipment design and covers installation and associated practices. In the case of dry materials, other considerations include material lump formation, creation of dust explosion conditions, high moisture deposit, formation in the presence of hot air, and material remaining in the equipment after shut-down. Appropriate cleaning procedures are described, dry cleaning being favoured to reduce risks of contamination.
Rotating paddle level limit switches within the Rotonivo range from UWT (UK) Ltd are now available with EHEDG approval. It is specified within the UWT catalogue at options position 29a to position 29d.
The following paddle switches are available with EHEDG approval:
•RN3001 and RN6001 (full, demand, empty detector with short extension length)
•RN3002 and RN6002 (full detector with pipe extension)
•RN3004 and RN6004 (full, demand, empty detector with pipe extension)
Vibranivo
Vibration level limit switches within the Vibranivo range from UWT (UK) Ltd are also available with EHEDG approval. The approvals are specified within the UWT catalogue at options position 30a to position 30d.
The following vibrating forks are available with EHEDG approval:
•VN1020, VN2020, VN5020 and VN6020 (short extension length)
•VN1030, VN2030, VN5030 and VN6030 (pipe extension)
By installing the EHEDG approved products in the Rotonivo and Vibranivo ranges available at UWT (UK) Ltd, the industrial producer is able to eliminate costs for cleaning, quality defects and production stoppages. These EHEDG approved level measurement products fulfil all principles of hygienic design and support hygienic processing of dry particulate materials in the food-pharmaceutical and cosmetics industries. These are essential principles to adhere to when installing level control switches within hygiene and food standard sensitive applications, says Graeme Hughes, of UWT UK Ltd.
UWT (UK) Ltd is able to provide a comprehensive list of approvals for its products. As well as the EHEDG approval, the following approvals are also currently available across its range of level measurement products:
UWT Wins EHEDG Approval
UWT Level Controls Win the Approval of the European Hygienic Engineering & Design Group (EHEDG)
The European Hygienic Engineering & Design Group (EHEDG) is a consortium of equipment manufacturers, food industries, research institutes as well as public health authorities. It was founded in 1989 with the specific aim to promote hygiene during the processing and packing of food products. The principal goal of EHEDG is the promotion of safe food by improving hygienic engineering and design in all aspects of food manufacture.
EHEDG actively supports European legislation which requires that handling, preparation, processing and packaging of food is done hygienically using hygienic machinery and in hygienic premises (EC Directive 2006/42/EC for machinery, EN 1672-2 and EN ISO 14159 Hygiene requirement.)
Hygienic Design Principles
Do’s:
•Ensure that the materials and surfaces food will come into contact with are suitable (eg corrosion resistant, non-absorbent, unpainted and easy to clean) – such materials must not be likely to break, crack or fracture in normal use.
•Ensure surfaces food will come into contact with are made of non-toxic materials which will not transfer any odour, taint or taste to the product.
•Ensure permanent joints are smooth where joints are in the same plane or curved where they are not.
•Ensure dismountable joints have a true and hygienic fit.
•Ensure projections, edges and recesses are kept to a minimum.
•Ensure internal curves allow thorough cleaning and, where necessary, disinfection.
•Ensure all fluids, including those from foods and cleaning the machine, can be easily discharged from the machine.
•Ensure shafts and seals are self- or product lubricated or use food grade lubricants – they can be cleaned and, where necessary, disinfected.
•Ensure appropriate materials are used in the machine construction – there may be a balance between ease of access for effective cleaning indicating ordinary steel could be used an lack of such access (eg in enclosed plant) indicating stainless steel could be used.
Don’ts
•Don’t allow dead spaces or bends in pipework in the food area which allow product to accumulate. If this is unavoidable, ensure good drainage and cleanability.
•Don’t allow bearings in the food area unless this is unavoidable – use food grade lubricants and ensure cleanability and, where necessary, disinfectability.
•Don’t use screws, screwheads and rivets in contact with food.
•Don’t allow liquids, pests or organic matter to enter parts of machines which cannot be cleaned.
•Don’t allow ancillary substances (eg lubricants) to come into contact with the food.
EHEDG Document 22
General hygienic design criteria for the safe processing of dry particulate materials
Dry food processing and handling requires equipment that is different from those typically associated with wet and liquid products. This is the first in a series of documents that goes beyond equipment design and covers installation and associated practices. In the case of dry materials, other considerations include material lump formation, creation of dust explosion conditions, high moisture deposit, formation in the presence of hot air, and material remaining in the equipment after shut-down. Appropriate cleaning procedures are described, dry cleaning being favoured to reduce risks of contamination.
Design Considerations for the following points4
•Product contact surfaces
•Welding
•Flexible connections
•Dynamic seals for shafts
•Bearings
•Hinges
•Fasteners (screws, bolts, nuts)
•Wiring and cabling
•External surfaces and insulation
•Powder tightness of equipment
http://www.ehedg.orgwww.ehedg.org
http://www.hse.gov.uk/pubns/fis24.pdffis24.pdf
http://ehedg.org/index.php?nr=9&lang=eng&guid=24index.php?nr=9&lang=eng&guid=24
4http://www.food-info.net/uk/eng/docs/doc22.pdfdoc22.pdf
UWT PRODUCTS WITH EHEDG APPROVAL
Rotonivo
Rotating paddle level limit switches within the Rotonivo range from UWT (UK) Ltd are now available with EHEDG approval. It is specified within the UWT catalogue at options position 29a to position 29d.
The following paddle switches are available with EHEDG approval:
•RN3001 and RN6001 (full, demand, empty detector with short extension length)
•RN3002 and RN6002 (full detector with pipe extension)
•RN3004 and RN6004 (full, demand, empty detector with pipe extension)
Vibranivo
Vibration level limit switches within the Vibranivo range from UWT (UK) Ltd are also available with EHEDG approval. The approvals are specified within the UWT catalogue at options position 30a to position 30d.
The following vibrating forks are available with EHEDG approval:
•VN1020, VN2020, VN5020 and VN6020 (short extension length)
•VN1030, VN2030, VN5030 and VN6030 (pipe extension)
By installing the EHEDG approved products in the Rotonivo and Vibranivo ranges available at UWT (UK) Ltd, the industrial producer is able to eliminate costs for cleaning, quality defects and production stoppages. These EHEDG approved level measurement products fulfil all principles of hygienic design and support hygienic processing of dry particulate materials in the food-pharmaceutical and cosmetics industries. These are essential principles to adhere to when installing level control switches within hygiene and food standard sensitive applications, says Graeme Hughes, of UWT UK Ltd.
UWT (UK) Ltd is able to provide a comprehensive list of approvals for its products. As well as the EHEDG approval, the following approvals are also currently available across its range of level measurement products:
ATEX, ICE Ex, GOST Ex, RTN Ex
For more information, please visit:
https://edir.bulk-online.com/oldedir...ted-209265.htmuwt uk limited 209265.htm
https://edir.bulk-online.com/profile/1974-uwt.htm1974 uwt.htm
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Attachments
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