ALBIN PUMP ALH - Page 59

Albin Pump ALH Instruction Manual  Albinpump.com  albinpump@irco.com 59
since 1928
ALH
Supplemental Instructions
for ATEX Certied Materials
10.4 - Ground connection of pump
A bonding strip lug can be seen on the frames of ALH type pumps and on the pump housing and
bearing case of the ALHS type pumps.
10.5 - ATEX characteristics of the motor or the motor reducer of the pump
The motor or motor reducer must have ATEX characteristics adapted to recognized use (group gas IIB,
class of temperature T4) and must be explosion-proof.
11 - ATEX characteristics of the pumping installation
A pumping installation can be composed of materials (motor, reducer, sensors…) from which ATEX
characteristics are dierent from those of the pump.
In this case, the group will have ATEX characteristics corresponding to ATEX characteristics of the
component with the lowest level of protection.
12 - Pumping vat of retention
At a constant arrival of liquid in a vat of retention in an ATEX zone, the uninterrupted start-up can
generate a classication in zone 0.
The case can only arise when the pump is used in the starting position. It is then imperative that the
suction pipe always has liquid present so as not to create explosive conditions in the presence of fuel
and combustive agents. Thus, the adjustment of the low point of the tank will have to be higher than the
opening of the suction pipe.
That will always result in the presence of liquid and not of gas and liquid.
13 - Marking of the pump
The marking of the ALBIN PUMPS is of type:
ALBIN:
TYPE ALH or ALHS
II 2 G T4 or II 3 G T4
N° series:
Year:
The marking of the ALBIN GROUPS is of type:
ALBIN:
Group ALH or ALHS
II 2 G T4 or II 3 G T4
N° series:
Year:
In the case of a pumping group, ATEX certied materials will retain their original markings.