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EN 733 monoblock centrifugal pump for thermal fluid (350ºC)

EN 733 monoblock centrifugal pump for thermal fluid installations specially designed to work at temperatures up to 350ºC with a finned heatsink casing.

Description

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Description

  • EN 733 monoblock centrifugal pump for thermal fluid installations (DIN 24255).
  • Suitable for any heat transfer fluid application in industry up to temperatures of 350ºC.
  • This is a monoblock version, with standard IEC motor mounted by rigid coupling between the pump shaft and the motor shaft end, and fastened by flange. This ensures optimum alignment of the whole unit.
  • Furthermore, the assembly is supported by up to four different points, consisting of three deep groove ball bearings and a front bearing which, apart from providing stability to the shaft, acts as a restrictive ring.
  • Mechanical seal NV-2 Type, according to EN12756 standards, with independent direction of rotation.
  • A finned heatsink casing has been designed to considerably reduce the working temperature of the pump in the area of the mechanical seal and bearings.
  • Possibility of installation in explosive atmosphere in accordance with ATEX directives.
  • The main advantages offered by the monoblock of the pump are:
    • Considerable reduction in the volume of the unit compared to a baseplate-mounted unit. This makes it easier to place and install the pump.
    • Easier maintenance and reduced costs, as the equipment does not require realignment tasks by operators when cleaning, replacing or repairing the pump.
    • Ideal for VFD operation, as it ensures that the assembly is not misaligned as it is a completely solid shaft.

For higher flow rates and head performance, according to the EN 733 standards, for thermal fluid, the AC-FT, an on baseplate-mounted pump version with elastic coupling, is the indicated equipment.


Materials

 Pump casing GGG-40 nodular cast iron
 Impeller GG-20 cast iron
 Pump shaft F-114/AISI 316
 Finned heatsink Pearlitic iron
 Mechanical seal NV-2 Type (EN12756)
 Bearings Standard deep groove ball bearings

 

Technical data

 Motor Three-phase according to IEC standards
 Efficiency IE2 or IE3 for power > 1 HP
IE1 if the power < 1 HP
It can be supplied up to IE5.
 Tension Three-phase 230/400 V ± 10% up to 5.5 HP
Three-phase 400/690 V ± 10% from 7.5 HP upwards
 Poles 2 or 4
 Level of protection IP55
 Insulation F Class

 

Usage limits

 Range of flow rates  Up to 200 m3/h
 Range of pressures  From 4 to 14 bar
 Max. Working pressure  16 bar
 Max. Working temperature  350ºC