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8 Technical Reference
Feature
Maximum starts per hour
Code compliance
Voltage variation without over-
heating
Voltage imbalance tolerance
Stator insulation class
Motor encapsulation
Motor encapsulation is in accordance with IP68.
Application limits
Data
Description
Liquid tempera-
40°C (104°F) maximum
ture
Liquid density
1100 kg/m³ (9.2 lb per US gal) maximum
pH of the pump-
5.5–14 for cast iron pumps
ed media (liq-
uid)
Depth of immer-
20 m (65 ft) maximum
sion
Other
For the specific weight, current, voltage, power rat-
ings, and speed of the pump, see the data plate of
the pump.
18
Description
15 evenly-spaced starts per hour
IEC 60034-1
±10%, if it does not run continuously
at full load
2%
F (155°C [311°F])
GFK-GFV Series Installation, Operation, and Maintenance Manual
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