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DWC
Centrifugal pump fitted with a closed radial flow impeller in AISI 304 stainless steel. It is equipped with an insulating shell as standard, which prevents condensation inside the system. It is available with special seals for heavier duty use and higher liquid temperature limits. The choice of connections, Victaulic (DWC-V) and threaded (DWC-N), facilitates installation. Read more
Features
Compact dimensions
Sturdy construction
Silent
Centrifugal pump fitted with a closed radial flow impeller in AISI 304 stainless steel.
It is sturdily built, made using the exclusive hydroforming process, and is equipped with increased discharge due to the absence of additional fittings.
It is equipped with an insulating shell as standard, which prevents condensation inside the system, and the standard mechanical seal is in Ceramic/Carbon/EPDM. The DWC centrifugal pump is available with special seals for heavier duty and higher liquid temperature limits.
The choice of connections, Victaulic (DWC-V) and threaded (DWC-N), facilitates installation.
For further technical information see the Databook
• Cooling, air conditioning and heating systems
• Chillers
• Washing systems
• Civil and industrial water supply
It is sturdily built, made using the exclusive hydroforming process, and is equipped with increased discharge due to the absence of additional fittings.
It is equipped with an insulating shell as standard, which prevents condensation inside the system, and the standard mechanical seal is in Ceramic/Carbon/EPDM. The DWC centrifugal pump is available with special seals for heavier duty and higher liquid temperature limits.
The choice of connections, Victaulic (DWC-V) and threaded (DWC-N), facilitates installation.
For further technical information see the Databook
• Cooling, air conditioning and heating systems
• Chillers
• Washing systems
• Civil and industrial water supply
Technical data
| Flow rate | from 6 to 45 m³/h |
| Total head | from 6.2 to 25 m |
| Max. working pressure | 8 bar |
| Max. temperature of the liquid | -15°C ÷ +75°C for H, HS, HW, HSW versions -15°C ÷ +120°C for std version |
| Poles | 2 |
| Insulation class | F |
| Protection degree | IP55 |
| Voltage | Three-phase 3~230/400V ±10% |
Materials
| Pump body | Stainless steel AISI 304 (EN 1.4301) |
| Impeller | Stainless steel AISI 304 (EN 1.4301) |
| Shaft | Stainless steel AISI 304 (EN 1.4301) (part in contact with the liquid) |
| Mechanical seal | Standard = Ceramic/Carbon/EPDM H = Graphite/Ceramic/FPM HS = Silicon Carbide/Silicon Carbide/FPM HW = Tungsten Carbide/Tungsten Carbide/FPM HSW = Silicon Carbide/Tungsten Carbide/FPM |
| Motor support | Aluminium |
Commercial documentation
Surface Catalogue 50Hz
Surface Catalogue 60Hz
Technical documentation
Data Book DWC 50Hz 2 poles
Data Book DWC 60Hz 2 poles
Generic instruction manual
(2)CD(X)-DWO-DWC-CM(.)-CDA instruction manual
DWC 50 Hz
DWC 60 Hz
PZH
DownloadI own/bought a DWC centrifugal pump, how do I carry out the first start-up properly?
The first start-up requires the following operations:
- undo the hexagonal cap on top of the pump’s body;
- use a funnel to fill the pump with water until it overflows;
- screw the cap back on until it’s blocked, this prevents air to seep in.
Please make sure that there is nothing blocking the dip tube’s foot valve. Once these steps have been carried out, turn the switch on and off two or three times in order to check the pump’s operating conditions and its direction of rotation. Then start its continuous operation and gradually open the delivery gate. Please always refer to user and maintenance manual.
Can I extend the DWC centrifugal pump's power cord without causing technical problems or affecting the warranty?
Yes. This operation has to be carried out by a specialised technician or at an authorised EBARA Service Centre. This avoids improper connections that can adversely affect the pump’s correct operation and the safety of the installation.
How do I check the DWC centrifugal pump's direction of rotation?
- Start the pump for a for a few moments;
- Position yourself looking at the pump on the fan side (rear);
- Check if the fan is turning clockwise according to the sticker arrow on the fan cover.
What is the noise level of the DWC centrifugal pump?
The noise level of the DWC centrifugal pump is <70 dB at a one metre distance
What is the maximum fluid viscosity that the DWC centrifugal pump can handle?
Contact EBARA’s Technical Customer Service to check if the pump’s model is suitable for the solution’s physical properties (concentration and temperature). In order to meet the operating requirements according to the liquid’s specific characteristics, the pump’s motor and/or hydraulics may need to be modified.
More details
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