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BADU Block



BADU Block

Standard centrifugal pumps
for "public pools" in monoblock design with front-end filter housing
BADU Block
The vertical monoblock design permits excellent circulation performance at minimal space requirements. The maintenance free bellows-type mechanical seal is cooled and lubricated by the pumping liquid. This results in long intervals between maintenance periods. Equipped with external circulation line/air bleed piping including an air drain valve not only facilitates automatic but also manual air bleeding, resulting in the long life of the mechanical seal. The strainer tanks, sufficiently large as a design feature, are optimized from the point of view of flow engineering, therefore boosting the performance level to such a degree that the pumps work very efficiently. All the designs in this series also have an enameled strainer housing. The directly mounted DIN-IEC standard motor in compliance with energy efficiency class IE2 including the PTC resistor sensor is quiet, surface-cooled and replaceable and on request, can be supplied as a permanent magnetic motor (IE3) or as a water-cooled motor.
Field of application
Swimming pool water circulation and filtration as well as the operation of swimming pool attractions in public swimming pools.
Design
Normal priming, single-stage volute casing pumps in vertical monoblock design. The process design allows easy dismantling of the drive unit without disassembly of the pipes. Because of the low motor speed, pump operation is quiet with very little wear and tear. The volute casing has replaceable, corrosion-resistant wear rings. The closed impellers are individually balanced and adjusted to suit the operating conditions. They are adjusted to meet the stipulations of quality grade 6.3 in compliance with DIN ISO 1940. This ensures smooth and quiet operation and long operating life of the entire pump assembly.
Operating details (50 Hz)
Flow rate
up to 800 m3/h
Total dynamic head
up to 37 m
Water temperature
max. 50°C
Max. operating pressure
Pump casing (10 bar)
Strainer housing (5 bar)
Motor speed
approx. 1450 min-1
Frame sizes
DND 32 to DND 200
Flange
up to DN 150 (in compliance with EN 1092-2 PN16)
from DN 200 (in compliance with EN 1092-2 PN10)