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CDU-2500
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CDDU-2000

The CDDU2000 is a chemical dilution and delivery system, designed to dilute and supply from two independent mixing tanks. 

Each mixing tank utilises load cell and level transmitters.

Each tank can dilute one chemical with DI, according to operator parameters and process requirements.

The two tanks hold dilute chemical, when the on-line tank becomes empty the system automatically switches to the off-line tank and the empty tank is then available for a new batch to be prepared.

The system has two pumps with filters. The two pumps are used for internal circulation and final delivery to the POC. 

CDDU-2000                 
  • Handles most aqueous chemicals
  • Each of the on-board chemical tanks tanks can be used for different volumes and dilution concentrations. Each tank can also be used for back-up for complete automatic redundancy
  • Small footprint
  • Front maintenance access
  • Utilities located at high level for easy connection
  • Can supply multiple POCs on demand
  • Polypropylene cabinets with height adjusting feet mounted on a stainless steel chassis
  • High Level resolution touch screen for local operation
  • All chemical handling pathways, tubing and valves utilise PFA
  • Pneumatic actuation of valves, transfer and delivery chemical pumps
  • Cabinet base acts as leak containment and any spills are automatically pumped to drain


Principal of dilution

After full data is entered, via the control panel, of the required mixture, DI water fills the mixing tank to the required volume, based on load cell measurement. Chemical is then added in the pre-selected volumes and the mixture is re-circulated to ensure a homogenous blend.
In order to supply the chemical and the Di water to the highest accuracy, the system utilises High flow and Low flow sets of valves. Starting with the High flow and switching to the Low flow, for the final amount up to the set-point.
The chemical blend is based on, raw material concentration, target concentration and process requirements. Factors such as chemical density and viscosity are factored into our calculations that are loaded into the control system 


CDDU-2000 Diagram                                   Options
  • Cabinet MOC FM compliant plastics, or other according to customer requirements
  • Sample chamber for on-line sampling
  • Filter housing(s) sized according to process requirements
  • Other materials for wetted surfaces are available, please contact your local office for more information

Dimensions
  Height Width Depth
Process cabinet         2,080 mm       1,100 mm       720 mm  

 

Utilities Needed
N2                          1 m3/hr. at 2 bar
DI 10 m3/hr. At 5-7 bar
Exhaust 500 m3/hr.
Drain 10 l/min. (top connection)



Electrical
Supply 24VDC 6A
PLC ABB
Touch Screen Exter


System Delivery Volume
Output            Up to 15 lpm as required by the application

 






 		              Construction Materials
Std CDU                     
 

White PP or other, on a coated
stainless steel chassis
Mixing Tank Natural PP
Tubing HP PFA
Valves HP PFA
Pumps PTFE/HP440PFA or SS for Solvents


Reliability
Uptime                        >99.9%
MTBF 2500 hours
MTBA 250 hours
MTTR
 		 2 hours, subject to spares
being available on site
all products
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