Atex Approved & Intrinsically Safe Pressure Washers & Floor Scrubbers

ATEX and explosive atmospheres
Explosive atmospheres in the workplace can be caused by flammable gases, mists or vapours or by combustible dusts. Explosions can cause loss of life and serious injuries as well as significant damage.
ATEX Pressure Washers ATEX Directive
Aquawash produce a range of ATEX, Zone Rated approved safety
pressure washers, and ATEX approved steam cleaners and hot water
cleaners, please contact us for more information
Our cold pressure washers, steam cleaners and hot water cleaning
machines include those built to;
Zone 1 ATEX CE Ex II 2G EEx IIB T4
ATEX CE Ex II 2G EEx IIB T4
ATEX EExd IIB T4 CE Ex II 2G
Dust - Zone 22
Vapour - Zone 1 IIB T3
EEx D EDE 209 Rev 03
EEx D IIC T4 Zone 1
Zone 1 IIB T4
Equipment and explosive atmospheres
Electrical and non electrical equipment and installations in
potentially explosive atmospheres must be specially designed and
constructed so that the risks of ignition are eliminated or
reduced. Techniques to do this include sealing electrical equipment
so that the explosive atmosphere cannot come into contact with
electrical components, reducing the power of electrical equipment,
and de-energising electrical equipment where a fault or an
explosive atmosphere is detected.
Recently installed equipment should be marked with an 'Ex' to show
it is suitable for use in potentially explosive atmospheres. All
new equipment must comply with The Equipment and Protective Systems
Intended for Use in Potentially Explosive Atmospheres Regulations
1996 that implements the European ATEX Directive. This requires it
to be assessed as suitable for a particular explosive atmosphere
type and for this to be marked on the equipment along with CE and
ATEX markings. Most new equipment being sold in the UK for use in
potentially explosive atmospheres must have an ATEX
certificate.
Equipment for use in explosive atmospheres should be regularly
inspected and maintained to ensure it does not pose an increased
risk of causing a fire or explosion. Maintenance of the equipment
should only be carried out by people who are competent to do
so.
Explosive and potentially explosive
atmospheres
For the purposes of the Regulations, an explosive atmosphere is a
mixture with air, under atmospheric
conditions, of flammable gases, vapours, mists or dusts in which,
after ignition has occurred, combustion spreads to the entire
unburned mixture. A potentially explosive atmosphere is an
atmosphere which could become explosive due to local and
operational conditions.
How does ATEX classify hazardous areas?
The hazardous places are classified into zones based on the
frequency and duration of a hazardous explosive atmosphere:
Gas, Mists or Vapors
Zone 0 - An atmosphere where a mixture of air and flammable
substances in the form of gas, vapor or mist is present frequently,
continuously or for long periods.
Only Category I equipment can be used in Zone 0
Zone 1 - An atmosphere where a mixture of air and flammable
substances in the form of gas, vapor or mist is likely to occur in
normal operation occasionally.
Only Category I and II equipment can be used in Zone 1
Zone 2 - An atmosphere where a mixture of air and flammable
substances in the form of gas, vapor or mist is not likely to occur
in normal operation but, if it does occur, will persist for only a
short period.
Category I, II and III can be used in Zone 2



















