Grundfos SEV 80 - Potentially Explosive Environments; Special Conditions for Safe Use

Potentially explosive environments
Use explosion-proof pumps for applications in
potentially explosive environments.
SE1 and SEV pumps
must under no circum-
stances pump combusti-
ble liquids.
The classification of the
installation site must be
defined by the owner.
Special conditions for
safe use of explosion-
proof pumps:
1. Make sure the mois-
ture switch and ther-
mal switches are
connected in the
same circuit, but
have separate alarm
outputs (motor stop)
in case of high hu-
midity or high tem-
perature in the mo-
tor.
2. Bolts used for re-
placement must be
class A2-70 or better
according to EN/ISO
3506-1.
3. Contact the manu-
facturer for informa-
tion on the dimen-
sions of the
flameproof joints.
4. The level of the pum-
ped liquid must be
controlled by level
switches connected
to the motor control
circuit. The minimum
level depends on the
installation type and
is specified in these
installation and oper-
ating instructions.
5. Make sure the per-
manently attached
cable is suitably me-
chanically protected
and terminated in a
suitable terminal
board placed outside
the potentially explo-
sive area.
6. The pumps have an
ambient temperature
range of -20 to +40
°C and a maximum
process temperature
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English (GB)