General Description; Technical Characteristics; Product Drawing; Operating Conditions - DAB FK Série Instructions Pour L'installation Et La Maintenance

4. THE PUMP MUST ALWAYS BE SUBMERGED WHEN WORKING. The level of pumped liquid must be controlled by two
level switches connected to the motor control circuit. The minimum level depends on the installation type and is specified
in these installation and operating instructions.
5. Make sure the permanently attached cable is suitably mechanically protected and terminated in a suitable terminal board
placed outside the potentially explosive area.
power supply cable.
6. The sewage pumps have an ambient temperature range of -20 °C to +40 °C and a maximum process temperature of
+40 °C. The minimum ambient temperature for a pump with a water-in-oil sensor is 0 °C.
7. The thermal protection in the stator windings has a nominal switch temperature of 130°C and must guarantee the
disconnection of the power supply; the power supply must be reset manually.

2. GENERAL DESCRIPTION

This manual contains the instructions for the installation, operation and maintenance of submersible pumps of the FK series. The pumps
are equipped with electric motors with power between 1.1 and 11 kW.
The pumps in the FK series are designed and suitable for pumping domestic and industrial sewage and waste waters compatible with
the materials of which the pumps are made.
The pumps can be installed on an auto-coupling system or stand freely on the bottom of a tank.
The booklet also includes specific instructions for the explosionproof pumps.

TECHNICAL CHARACTERISTICS

Consult the Instructions Booklet and the data plate to check the following technical data:
Electric Power Supply | Construction Characteristics | Hydraulic Performance | Working Conditions | Pumped liquids.
2.1

Product drawing

Fig. 1 FK pump
Pos. Description
1 Lifting bracket
2 Nameplate
3 Oil screws
4 Discharge flange
5 Cable plug
6 Pump housing
PH value
FKV and FKC pumps in a fixed installation can be used for pumping liquids with pH values from 6.5 to 12.
Temperature of the operating liquid
0 °C to +40 °C.
For short periods a temperature of up to +60 °C is permissible (non-Ex versions only).
Explosion-proof pumps must never pump liquids of a temperature higher than +40 °C.
Ambient temperature
ENGLISH
2.2
The FKV and FKC pumps are suitable for the following operating situations:
S1 operation (continuous operation), the pump must always be
•
covered by the pumped liquid to the top of the motor. See fig. 2.
S3 operation (intermittent duty), the pump must always be covered
•
by the pumped liquid up to the top of the pump body. See fig. 2 (only
for non explosion-proof versions).
Material
Steel AISI 304
Steel AISI 304
Steel AISI 304
GJL200
Fig. 2 Stop levels
H07RN8-F
GJL200

Operating conditions

S1 operation
S3 operation
18
The pump is supplied with an appropriate