Installation Conditions; Application In Petrol Pumps - Burkert PTB 07 ATEX 2063 X Mode D'emploi

5.3. Installation conditions

The solenoid coils Type AC19-..-.-PF09 to Type AC19-..-.-PF10 are
suitable for single installation only.
The connection cables must be laid permanently to protect against
damage.
Also observe the specifications in the chapter entitled
"Technical Data".

5.4. Application in petrol pumps

DANGER!
Danger of explosion!
Following installation, solenoid coil and valve body form a closed
system. If used in the EX area, there is a danger of explosion if the
system is opened during operation!
• The system must not be disassembled during operation.
• The valve body may be repaired by the manufacturer only.
Solenoid valves together with the coil AC19 may be used as
category 2 devices only for the control of petrol if there is no air
and no oxygen in the closed system.
• Ensure that the closed system contains no air or oxygen or
cannot be penetrated by air or oxygen.
• When switching off or starting up the system, ensure that nei-
ther air nor oxygen has penetrated the system.
10
english
07 ATEX 2063 X
Application conditions
If the system is used as a category 2 device, only valve bodies
made of metal can ensure the required safety for the control of
petrol in petrol pumps!
• Use only valve bodies made of metal (brass, aluminium or
stainless steel) for the control of petrol in petrol pumps with
category 2 devices.
Example: 2/2-way solenoid valve
Solenoid coil AC19
Valve body
Fig. 2 : Example of coil AC19 as part of a closed system.