To be able to see our webpages, enable JavaScript please!

Normblock - Standard centrifugal pump
in monoblock design



Normblock

Normblock
The monoblock design facilitates excellent circulation performance, yet requires little space. The motor can be replaced without having to disassemble the pump completely or without having to dismantle the mechanical seal. The maintenancefree bellows-type mechanical seal is highly resistant to wear and tear and not reliant on the direction of rotation. The seal is also lubricated by the medium via a circulation line, which makes it highly durable. The pump shaft of stainless steel 1.4571 is protected by a shaft protection sleeve also made of stainless steel 1.4571. This prevents wear and tear of the pump shaft. 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 permanently 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. Can also be used for irrigation, drainage, water supply, shipbuilding and industry.
Design
Normal priming, single-stage volute casing pumps with performance classification and main dimensions in compliance with NF E 11-112 and DIN EN 733 (replacement for DIN 24255). The pump and replaceable norm motor are flanged together to form a monoblock unit. The volute casings have replaceable corrosion-resistant wear rings. The closed impellers are individually balanced to suit the respective operating conditions. They are adjusted to meet the requirements 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 740 m3/h
Total dynamic head
up to 101 m
Water temperature
-30°C – 140°C
Max. operating pressure (standard designs)
up to 110°C (10 bar)
up to 140°C (8 bar)
Special versions on request!
Motor speed
approx. 1450/2900 min-1
Frame sizes
DND 32 to DND 200
Flanges
up to DN 150 (in compliance with EN 1092-2 PN16)
from DN 200 (in compliance with EN 1092-2 PN10)