Single and twin impeller centrifugal pumps

CDX(L)

Single-impeller centrifugal pump in AISI 304 and AISI 316 stainless steel, with radial impeller and components made by the hydroforming process that provides high resistance to corrosion. The versatility of these electric pumps is due to the different types of mechanical seals that can be applied. Read more

Features

Compact dimensions

Sturdy construction

Available in AISI 316

Single impeller centrifugal pump with hydraulics in AISI 304 and AISI 316 stainless steel, with radial impeller, with hydraulics entirely in pressed AISI 304 or AISI 316 (L version), with hydroformed components, which ensure sturdiness, hydraulic efficiency and reliability.
The hydroforming process uses a high-pressure fluid (up to 1200 bar) to form the metal.
The hydraulic fluid, in our case water, with increasing pressure pushes the stainless steel to copy the shapes of the template until it comes into contact with the internal walls of the matrix that forms the mould. Hydroforming, which combines the power of a press with the force of water, has significant advantages over traditional processes, namely:

• Perfectly smooth shape
• Highly smooth running
• No welding points

These features ensure high corrosion resistance, high efficiency with performance above 80% and low losses.
The small size of CDX(L) electric pumps makes them suitable for narrow or difficult to reach spaces.
The versatility of these electric pumps is due to the different types of mechanical seals that can be applied. For further technical information see the Databook

• Domestic pressurisation
• Small-scale garden irrigation
• Washing
• Water treatment
• Cooling towers
• Handling of clean water in general

Technical data

Flow rate	from 1.2 to 15 m³/h
Total head	from 37.5 to 12.5 m
Max. working pressure	8 bar
Max. temperature of the liquid	-5°C ÷ +75°C for H, HS, HW, HSW versions -5°C ÷ +90°C for std and E versions
MEI	> 0.4
Poles	2
Insulation class	F
Protection degree	IP55
Voltage	Single-phase 1~230V ±10% Three-phase 3~230/400V ±10%

Materials

Pump body	Stainless steel AISI 304 (EN 1.4301) (CDX) Stainless steel AISI 316L (EN 1.4404) (CDXL)
Impeller	Stainless steel AISI 304 (EN 1.4301) (CDX) Stainless steel AISI 316L (EN 1.4404) (CDXL)
Shaft	Stainless steel AISI 303 (EN 1.4305) (CDX) Stainless steel AISI 316L (EN 1.4404) (CDXL)
Mechanical seal	Standard = Ceramic/Carbon/NBR H = Graphite/Ceramic/FPM HS = Silicon Carbide/Silicon Carbide/FPM HW = Tungsten Carbide/Tungsten Carbide/FPM HSW = Silicon Carbide/Tungsten Carbide/FPM E = Graphite/Ceramic/EPDM
Motor support	Aluminium

Commercial documentation

Technical documentation

3D drawings

ICIM

Download

PZH

Download

What kind of liquid can I pump with the CDX(L) centrifugal pump?

Thanks to the design features and to the various technical combinations that are available, the CDX(L) centrifugal pump is designed so that is can use clean water and various kinds of liquids. Contact our Technical Customer Service for information on specific application areas.

What is the difference between a single impeller and twin impeller pump?

A twin impeller version’s performance is better in terms of head, while the flow rate remains the same.

How do I carry out the CDX(L) centrifugal pump's 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.

Which is the fluid's maximum allowed temperature for the CDX(L) centrifugal pump?

For the standard version the temperature range is 60°C – 90°C according to the model.
The versions that are equipped with different mechanical seals can pump liquids up to 120°C.
Please check the pump’s technical documentation and instruction manual for the maximum allowed temperature limits according to the version.

Which are the applications the CDX(L) centrifugal pump can be used for?

The CDX(L) centrifugal pump is ideal when used for domestic pressure boosting, garden irrigation, washing, and when handling clean water in general. Thanks to its design features it can be used in many other fields, including the industrial sector and with various kinds of liquids. Contact our Technical Customer Service for information on specific application areas.

What is the noise level of the CDX(L) centrifugal pump?

The noise level of the CDX(L) centrifugal pump is <70 dB at a one metre distance

How do I check the CDX(L) 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.

Regarding the CDX(L) centrifugal pump, can I extend the power cord without causing technical problems or affecting the warranty?

Yes, anyhow 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/or the safety of the installation.

HYDROSTATION

GSD SERIES

EVMS(L)(G)

3(L)(4) SERIES

CDX(L)