ATEX  >  Semi-finished products


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Sheets PE100-el, extruded, protective film on one side, electrically conductive  

Sheets PE100-el, extruded, protective film on one side, electrically conductive


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  Sheets PE100-el, extruded, protective film on one side, electrically conductive  

Sheets PE100-el, extruded, protective film on one side, electrically conductive


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  Sheets PE100-el, extruded, protective film on one side, electrically conductive  

Sheets PE100-el, extruded, protective film on one side, electrically conductive


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Sheets PE100-el, pressed, without protective film, electrically conductive  

Sheets PE100-el, pressed, without protective film, electrically conductive


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  Sheets PPs-el, extruded, protective film on one side, electrically conductive  

Sheets PPs-el, extruded, protective film on one side, electrically conductive


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  Sheets PPs-el, extruded, protective film on one side, electrically conductive  

Sheets PPs-el, extruded, protective film on one side, electrically conductive


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Sheets PPs-el, extruded, protective film on one side, electrically conductive  

Sheets PPs-el, extruded, protective film on one side, electrically conductive


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  Sheets PVDF-el, pressed, milled surface, electrically conductive  

Sheets PVDF-el, pressed, milled surface, electrically conductive


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  Sheets PVDF-el, extruded, with protective film on both sides, electrically conductive  

Sheets PVDF-el, extruded, with protective film on both sides, electrically conductive


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Welding wire PE-el, electrically conductive  

Welding wire PE-el, electrically conductive


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  Welding wire PPs-el, electrically conductive  

Welding wire PPs-el, electrically conductive


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  Welding wire PVDF-el, electrically conductive  

Welding wire PVDF-el, electrically conductive


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Solid rod made of PE100-el, electrically conductive, black  

Solid rod made of PE100-el, electrically conductive, black


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  Solid rod made of PPs-el, electrically conductive, black  

Solid rod made of PPs-el, electrically conductive, black


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  Solid rod made of PVDF-el, electrically conductive, black  

Solid rod made of PVDF-el, electrically conductive, black


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ATEX: Confidence in safety, expertise in explosion protection






source: OPEN AI
 

ATEX is a designation that is often used in connection with explosion protection within the European Union. The name ATEX is derived from the French term "ATmosphères EXplosibles". These are two EU directives that are intended to ensure the protection of persons and property in potentially explosive atmospheres. These directives are:

1.) ATEX 2014/34/EU (formerly 94/9/EC) - Equipment and protective systems intended for use in potentially explosive atmospheres:
This directive regulates the placing on the market of products used in potentially explosive atmospheres. Manufacturers must ensure that their products are designed and manufactured in such a way that they do not endanger the health and safety of persons or the protection of property when used as intended.

2) ATEX 1999/92/EC (also known as the "ATEX Directive"):
This directive is addressed to the employer and concerns the minimum requirements for the protection of the safety and health of workers potentially at risk from explosive atmospheres. It requires employers to assess the risk of explosions and take appropriate protective measures. This includes the division of areas into zones based on the frequency and duration of the occurrence of hazardous explosive atmospheres.



For products covered by the ATEX directives, a CE marking is required to indicate that the product complies with the applicable EU requirements, including those for explosion protection. In addition to the CE marking, products used in potentially explosive atmospheres must bear the special ATEX mark (a hexagon with the word ’Ex’).

The implementation of these directives requires manufacturers to have extensive knowledge of the properties of gases, vapors and dusts with regard to their explosive properties. Operators of systems in which explosive atmospheres can occur must also develop and implement suitable safety concepts in order to minimize the risk of an explosion and ensure the safety of employees.

In practice, this means that equipment and protective systems used in such areas must be designed in such a way that they cannot be a source of ignition, for example through sparking or excessive heat generation. The requirements vary depending on the specific zone in which the equipment is used and the type of explosive atmosphere (e.g. gas or dust).

 


source: OPEN AI

The ATEX directives cover a wide range of products and protective measures to ensure safety in potentially explosive atmospheres. Here is more detailed information and aspects of the ATEX topic:

Zoning

A central aspect of the ATEX directives is the classification of areas into zones. This classification is based on the type, frequency and duration of the occurrence of an explosive atmosphere.

For gases, vapors and mists:
Zone 0:An area in which an explosive gas atmosphere is present continuously or for long periods.
Zone 1: An area in which an explosive gas atmosphere may occasionally form under normal operating conditions.
Zone 2: A place in which an explosive gas atmosphere is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

For dusts:
Zone 20: An area in which an explosive dust cloud is present in the air continuously or for long periods.
Zone 21: An area in which an explosive dust cloud may occasionally form under normal operating conditions.
Zone 22: An area in which an explosive dust cloud does not occur under normal operating conditions and only for short periods.

Equipment categories

The devices and protective systems that fall under ATEX 2014/34/EU are divided into different categories according to their place of use, which indicate the level of protection required:

- Category 1 (Zone 0 or 20): Highest level of protection; equipment must provide safety even in the event of two independent malfunctions.
- Category 2 (Zone 1 or 21): High level of protection; devices must provide a high level of safety and remain safe in the event of a malfunction.
- Category 3 (Zone 2 or 22): Normal level of protection; devices must be safe under normal operating conditions.

Labeling

Products designed for use in potentially explosive atmospheres must bear additional information in addition to the CE marking, including
- The Ex symbol in a hexagon.
- The group and category of the device.
- The gas or dust group for which the appliance is suitable.
- The temperature class or maximum surface temperature.

Conformity assessment procedure

The ATEX Directive stipulates that products must undergo a conformity assessment procedure before they are placed on the market. This may include internal production controls, type testing and in some cases the involvement of a notified body, depending on the category of equipment.
Important aspects for operators

For operators of equipment in potentially explosive atmospheres, the requirements of ATEX 1999/92/EC (operating directive) are particularly relevant. These stipulate that operators must create an explosion protection document that includes the following:

- Assessment of the explosion risk.
- Measures to prevent explosions.
- Measures to protect against the effects of an explosion in order to safeguard the health of employees.

Compliance with the ATEX directives is not only crucial for safety in the workplace, but is also a legal requirement in the EU. The implementation of these directives requires close cooperation between manufacturers, plant operators, engineers and safety experts in order to develop innovative and safe solutions for dealing with explosive atmospheres.



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Plastic pipe systems


Overview of plastic pipe systems
Technical information on ABS pipe systems
Technical information on PVC  U pipe systems
Technical information on PVC  U transparent pipe systems
Technical information on PVC  C pipe systems
Technical information on PP pipe systems
Technical information on PP-R pipe systems
Technical information on PE pipe systems
Technical information on PVDF pipe systems

Chemiedur - pipe


Technical information on UP-GF (FRP) pipe systems
UP-GF (FRP) pipes
UP-GF (FRP) molded parts and connection
UP-GF-PP (FRP) molded parts and connection
UP-GF (FRP) adhesive collars
UP-GF (FRP) loose flanges
Pot Strainer DN 200 - DN 500 Inliner PP/FRP Coated
Pot Strainer DN 200 - DN 500 Inliner FRP/CBL Coated
Angle Seat Strainer DN 200 - DN 400 Inliner FRP/CBL Coated
Manhole mad of FRP and PP/FRP

Plastic pipes


Calculator for cutting pipes
Guidelines for sawing plastic pipe
Leftovers in plastic pipe
Standardization of plastic pipes and molded parts
PVC U pipes deviations
Pressure loss in pipe systems out of PVC U, PVC C and ABS pipe systems
Distinction between Rp, R and G threads
Screw lengths for flange connections

Plastic fittings


PVC U transparent ball valves
Diaphragm valves
Block valves
Butterfly valves
Plastic needle valves

 

Plastic Valves according to ATEX


New EU guideline 2014/34/EU
Plastic Valves in EX zones
Y-Strainers PP-EL DN 15 - DN 50
Check valves PP-EL DN 15 - DN 50
Angle seat valves PP-EL DN 15 - DN 50

Bonding of plastic pipes


Bonding manual
Video showing the bonding of pipes

Plastic welding


Guidelines for extrusion welding


Grids / support grids


GFK grids
Grids out of PP -el electrically conductive
Profile support grids out of PP -el electrically conductive


Molded ventilation parts


Ventilation technology


Chemical hose


PVC transparent hose with fabric inlay


Industrial tanks and chemical containers


Dosing tanks and outer containers 35 – 1000 Liter
Salt dissolving tanks 60 -5000 Liter
Storage tanks and vats
Storage tanks for water
Safety and collecting troughs
Industrial tank delivery program
Dosing tanks with agitator
Dosing tank agitators
Dosing tanks with attachments
Dosing tanks made of sheet material
Customized chemical containers
Dosing tanks with level indicators



 

IBC TANKS/CONTAINERS


IBC screw caps DN 150/DN 200
IBC adapters out of PE
IBC adapters out of PP
MULTI FLEX BLOCK for IBC BULK CONTAINER


Attachment parts for tank construction


Vapor separators
CO2 - absorbes
Manholes
Revision nozzles
Block flange

Filter housings and filter cartridges


PENTEK 3G Slime Line filter housings
PENTEK 3G Standard filter housings
PENTEK Big Blue filter housings
PENTEK PP high temperature filter housings
PENTEK PP all nature filter housings
PENTEK filter bags for Big Blue filter housings
PENTEK surface filter cartridges
PENTEK filter cartridges for depth filtration
PENTEK filter cartridges with activated carbon
CINTROPUR filter systems
CINTROPUR water filters

Flange configurator


Blind flanges, loose flanges,  rectangular flanges

Chemical resistance


Table of chemical resistance for plastic pipe systems
 

Machined plastic parts


Inserts
Screw-in parts
Threaded fittings
Screw fittings

Milled plastic parts


Loose flanges and blind flanges made of sheet material

Static mixers


Static mixers made of plastic

Strainers


Single-type and double-type strainers
Pot strainer DN 300
Angle seat strainer DN 500


Flow meters


Variable area flow meters
Configuration tool for flow meters

Filter presses


Laboratory filter presses

Injection molded parts


Scraper made of PE for filter press

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The Kwerk team blogs from the field here



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