7.
ATEX supplementary manual
IOM manual Tapflo PTL Hose pumps
55
7.10.
Casing and temperature positions
When operating in potentially explosive atmospheres, pumps are allowed to operate in two
positions, pump connections facing left or right. Directing casing up and down is forbidden.
PXTL pumps are assembled with casing directed left as standard configuration. However, when
using the “2 ” code pump can be delivered with casing assembled right as an optional
configuration.
The position of the temperature sensor is determined by the operation direction, and it must
be placed only in the designated positions, on the top or bottom of the pump casing. In
particular, the temperature sensor must be placed on the pump outlet.
If you anticipate frequently changing the pumping direction, it is recommended to use two
temperature sensors to ensure that the sensor is always properly positioned regardless of the
direction of operation.
When ordering pump with “5X
T
”
code, it will be equipped with two
sensors.
Allowable casing positions
Fig. 7.10.1
Casing position left (standard)
Fig. 7.10.2
Casing position right (optional)
Temperature sensor position related to pumping direction
Fig. 7.10.3
Pumping direction bottom to top.
Temperature senor assembled on the top
of pump casing.
Fig. 7.10.4
Pumping direction top to bottom.
Temperature senor assembled on the
bottom of pump casing.
Summary of Contents for PTL Series
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