Especially suitable for high aggressive media
like acids and alkalies
These vertical centrifugal pumps are operated by a direct-drive
motor (max. 3.000 rpm) and have high performance data regarding
flow rate (6 to 75 m3/h) and head (7,5 to 38 m). They are especially
suitable for a fast transfer of chemicals when emptying containers
or tanks. Centrifugal pumps of series JP-820 will be mainly used
for fixed installations while the pump column is immersed directly
in the tank. The special construction of these pumps avoids the
use of internal mechanical seals (that often have to be replaced)
and ensures that any leakages will be collected in the tank. The
open impeller allows even continuous pumping of extremely dirty
liquids or media containing small solids. The maximum viscosity
for these centrifugal pumps is 500 mPas (at 20 °C) and the maximum
temperature of the medium 65 °C at PP or 95 °C at PVDF.
The availability of different materials of construction – depending
on chemical and thermical resistance of medium or environment –
guarantees an absolute reliability of operation as well as a long life
time of the pump.
Technical data
Executions in Polypropylene and PVDF
Standard column lengthsin 500, 800, 1.000 and 1.250 mm
Flow rates from 6 to 75 m3/h
Head from 7,5 to 38 m
Viscosities up to 500 mPas (at 20 °C)
Temperatures at PP max. 65 °C, at PVDF max. 95 °C
Three-phase motor, 230/400 Volt, 50 Hz, IP55, F Class, 2-poles, 2900 rpm
Advantages
• High chemical and thermical resistance
• Robust construction
• Suitability for continuous operation
• Weldless construction and therefore absolute reliability
of operation
• Applicability even with extremely dirty liquids or media
containing small solids
• Removing of motor even if pump is installed
• Availability of pump also without motor
• Quick and easy maintenance like replacement of bushings
• Inexpensive spare parts
Pump principle
The impeller is connected over the shaft with the direct-drive
electric motor. It rotates at a preset speed and produces a
centrifugal effect (suction on the inlet and discharge on the
outlet).
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