TPY
R
15
16
7:
Explosion safety
II
Product group for use above ground ,with the exception of
mineworking where there can be danger of explosion due
to mine gas and/or flammable substances.
2
Category 2:Equipment in this category is intended for use in areas
in which explosive atmospheres caused by mixtures of air and gases,
vapours or mists or by air/dusts mixtures are likely to occur.
G
Suitable for an environment that is explosive due to gas,vapour
or fumes;not suitable for an environment that is explosive due to
dust.
T4/T5
:Temperature class:
T4 135
T4 for medium temperatures up to135
T5 100
T5 for medium temperatures above100
ATTENTION
When the pump is placed in an explosion hazardous
environment no pump should be opened or disassembled
on site.Due to the probable creation of sparks during
loosening and tightening of nuts and blots.
5.7.3
(
)check list
It is compulsory to check these points prior to put the pump in operation.
Check if the EX-data on the motor and the in line with the specified
category.
When the categories of the motor and the pump are different,the
lowest category is leading.
2
For category 2:make sure that the pump is protected against
damage from outside.
Check that the motor cable is suitable for the current drawn by the
motor.See:motor type plate.
Check that the pump is fully filled with the liquid(de-airated). Do
not run the pump dry.
Check the rotational direction of the motor.The motor has to run
clockwise (seen from the non driven side).This direction is
indicated with an arrow on the pump top bracket.
T5/T4
7
Make sure that the liquid temperature never exceeds the temperature
mentioned in the explosion safety code T5 or T4. See table 7:Explosion
safety.
5
6
Avoid overheating of the pump to ensure a minimum flow in the pump
according with the description in chapter 5.6:Working range
:
The pump has to be de-airated again when:
The pump is taken out of operation
TPY
R
16
