1. RO Demineralisers, Medium Flow
Demineralisers Medium Flow. Units available
Mod. 4VA0X00: Cancelled
Many membranes replaced in guarantee period.
Corrosion problems due to high salinity
Chlorine remover filter insufficient (chlorine damages the membranes)
Few pre-treatments available
Low Salinity
Production (m3/day)
4VA0100
2.5
4VA0200 5
4VA0300 10
4VA0400 20

2. RO Demineralisers Medium
Demineralisers Medium Production Capacity. Units available
Mod. 4DAXX00: Available
Equipments to process water from wells and brackish water, suitable to treat up to mg/l (low salinity) and mg/l (high salinity) of TDS, respectively.
It can be mounted in a small cabinet Mod
Optional production capacity increase with adittional membranes (1-4)
Options: Chlorine remover filter, silex filter, iron remover filter, organic matter filter. Biocide doser, Bisulfite and water softener for boilers.
Low Salinity
High Salinity
Production (m3/day)
Membranes
4DA1100
4DA2100
4-6 1
4DA1200
4DA2200
8-12 2
4DA1300
4DA2300
14-18 3
4DA1400
4DA2400
20-22 4
Iron remover Filter
Silex-antracite Filter
Chlorine remover Filter
Organic Matter Filter
Biocide Doser
Bisulfite Doser

3. RO Demineralisers Medium
Demineralisers Medium Capacity.
Units available in cabinet assembled-in
Mod & : Available
Equipment with 2,5 m3/d ( ) and 5 m3/d ( ). Suitable for Jet-Wash centres.
Optional devices for centres CAXX00 currently available
Water softener is required Mod , which supplies the boiler also.
Mod
Mod
Mod : Available
Integration of Demineraliser Water Softner
Equipment with 4-5 m3/d and water softener 2x40L
Optional device for one bay Jet-Wash centre 4CB0500
Water softener supplies RO and boiler.
Mod

4. RO Demineralisers Medium
Demineralisers Medium Capacity.
Available references in cabinet assembled for Jet Wash
Nowadays, we offer for 4-6m3/ day :
Old references for low salinity (4DA0100)
Demineralisered water reserve tank 1000 l. (platform included)
Water pump to supply high pressure units.
Optional: 20” filter, Duplex Water Softener for boiler and demineraliser, thermal insulation and heater.

5. RO Demineralisers Medium
Demineralisers Medium Capicity.
Available references in cabinet assembled for Jet Wash
Under development Mod. 4DA0300, it will be available for 4,5 m3 / day with the new technology:
This model will replace the model (4DA0100) after a brief period of re-engineering.
Pump for water to feed the high pressures included in the set.
Optionals: Chlorine remover filter, Silex filter , Water Softner for heaters, thermal and heaters.

6. RO Demineralisers Medium
Demineralisers Middle Capacity.
Available references in assembled cabinet for Jet Wash
Nowadays we offer for 10 m3 / day:
Mod. 4DA1200 (low salinity) & 4DA2200 (high salinity)
Reserve water tank placed outside cabinet
Optionals are as follows: Chlorine remover filter, Silex filter, Water softener for boiler, Iron remover filter, Biocide doser, Bisulfite doser, thermal insulating and heater (pre-treatment filters depend on water analysis).
Assembled into one or two cabinets, according to required pre-tratment.

7. RO Demineralisers Medium
Models 4DAXX00. Main Features:
Antiscalant doser instead of a water softener with salt.
Antiscalant automatic mixture preparation.
Backwash with demineralised water instead of feeding water.
Advantages due to the use of antiscalant:
Ecological: No brine from the water softner regeneration
Logistics and easy use: no need to stack salt bags and simplicity
Cheaper: antiscalant is cheaper than salt consumption
Expansion of the action capacity: wide espectrum
Balance in the ratio production/surface & reject/surface of the membrane compared with the old existing equipments.

8. RO Demineralisers Medium
Models 4DAXX00. Main Features:
Quality of components:
Programmable PLC Siemens S7-200
Centrífugal Pump Grundfos
Metering Pump Prominent
Stainless steel frame quality AISI-304
Piping of High salinity range in stainless steel AISI-316
Toray membranes: TMG10 (Low salinity), TM710 (High salinity)
Production can be upgraded just by adding membranes to the existing equipment (no need to buy a full new system).
Suitable cabinet assembly
Wide range of pre-treatments available:

9. RO Demineralisers Medium
Models 4DAXX00. Balance Situation
Customer
How can we reach the balance between the three different interests?
TAS
Equipment

10. RO Demineralisers Medium
Models 4DAXX00. Anomaly
a) Minor Anomaly
Those that require a TAS action, but they are not critical for the equipment operation. In this case, the equipment will alert with a buzzer, being this information registered in the PLC. From this moment, the customer has 10 days to inform to Istobal TAS, so they can proceed to the repair this anomaly, during these 10 days the equipment will keep on working.
After this time the equipment will stop automatically, protecting itself from severe damages.
Example: Antiscalant dosing failure.
b) Serious Anomaly
Those that require a TAS action, but being critical for the operation of the equipment. Therefore the system will stop immediately in order to avoid irreversible and expensive damages to the customer.
Ejemplo: Water shortage, so the equipment must stop in order to avoid damages in the pump.

11. RO Demineralisers Medium
Models 4DAXX00. Example of anomaly
Just like a car, the models 4DA have two types of alarms to inform us about any possible failure and its seriuosness.
CAR
DEMINERALISER
TYPE OF ALARM
EXAMPLE
ACTION
NOT CRITICAL
Windscreen wiper water shortage
Amber light: to stop in a few miles
Flow of demineralised water production, product dosing.
Failure warning, failure record and equipment stop after 10 days.
CRITICAL
Motor oil shortage, brake fluid shortage
Red light: immediate stop
Water shortage, levels, overcurrent.
To stop the equipment

12. RO Demineralisers Medium
Models 4DAXX00. Main Features:
Buzzer included to alert the customer about the failures.
The equipment must recognize the adverse conditions to assure a long operational life.
The demineralisers are equipments overlooked by the customer (is a non productive equipment) and usually there is not a preventive maintenance of these installations.
The equipment will stop only if there is an imminent risk to its operating life, avoiding irreversible and expensive damages.
The customer must be informed of any anomaly (critical or not) without decreasing the business.
Light Alert
Buzzer

13. RO Demineralisers Medium
Demineraliser. Size.
Height mm
Width 480 mm
It is possible to be installed in cabinet Ref (size with cabinet: Height mm x Width mm x Depth 900 mm
Length mm

14. RO Demineralisers Medium
Demineraliser. Available Configuration
Assembly in Plant Configuration

15. RO Demineralisers Medium
Maintenance of Demineralisers 4DAXXXX
1.- Daily maintenance
To check the level of chemical product.
2.- Every week
To check and to take note of pressures and flows.
3.- Every 3 months
To check the condition of the filters (FS1 & FS2), if necessary they should be changed.
4.- Every 6 months
To clean the small tanks of anti-scalant and backwash water.

16. RO Demineralisers Medium
Example of calculation of Antiscalant vs Water Softener
Antiscalant dosage
Consumption of antiscalant product:
Daily need of water: 21 m3 at 70 ºHF (39,2ºHD).
“High” dosage of product: 5 mg/L = 5 g/m3
Daily product consumption: 21m3 x 5 g/m3 = 105 g/day = kg/day
1 carafe 10 L = 13 kg
So 1 carafe of 10 litres of antiscalant will last: 13 kg / kg/day = 124 days
Water softener 2x100 litres
Salt Consumption:
Daily need of water: 21 m3 at 70 ºHF (39,2ºHD).
Necessary regeneration of the water softener every 9 m3
Number of regenerations per day: (21m3/day) / (9m3/ regeneration) = 2.3 regenerations /day
Consumption of salt per litre of resin in every regeneration: 0,2 kg/Litres of resin
Consumption of salt in every regeneration: 0,2 kg/Litre of resin x 100 Litres of resin = 20 kg of salt per regeneration
Salt consumption per day: 2.3 regenerations / day x 20 kg of salt/regeneration = 46 kg/day
Salt consumption in the same period of time (124 days): 46 kg/day x 124 days = kg = 228 sacks of 25 kg

17. RO Demineralisers Medium
Example of calculation of Antiscalant vs Water Softener
Conclusion: In 124 days of use:
5.704 Kg of salt =
1 bottle of 10 L (13 Kg)
Make yourself your calculations:
Price/kg Salt x kg salt = Euros spent on salt
versus
PVP 10 L Antiscalant carafe = 189 ,00 Eur

18. RO Demineralisers Medium
Difference between antiscalant and water softener.
Antiscalant doser system +
Antiscalant drum
Water softener +
Salt

19. RO Demineralisers Medium
Car Wash Equipment
Equipment performance
5m3/day
4DA1100 – Low salinity
4DA2100 – High salinity
10m3/day
4DA1200 – Low salinity
4DA2200 – High salinity
15m3/day
4DA1300 – Low salinity
4DA2300 – High salinity
20m3/day
4DA1400 – Low salinity
4DA2400 – High salinity
M-7
M-9
+ accumulation
tank
= 5 m3
M-15
= 10 m3
M-18
= 15 m3
4TB0100
4TB0400
= 15 m3
Range:
Low salinity: 0 ppm– ppm
High salinity : ppm – ppm
All R.O. equipments must be installed with a pretreatment stage according to the intake water quality !