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Model 2635S3

This three tank 6-LPM Type II/III DI System is designed for applications that require up 160-Liters of Type II/III DI water/day, when fed tap water containing up to 340 PPM of total dissolved solids.

The system includes three installed plus one spare 7" (178mm) diameter by 37" (940mm) tall DI tanks, an activated carbon prefilter assembly with pressure regulator and gauge, and two purity monitor lights.

When the purity monitor light indicates that the system is no longer producing Type II DI water, the first (and fully exhausted) DI tank in line is removed and returned to AQUA SOLUTIONS for refilling.

The second and third DI tanks in line are moved to the first and second posistions and then, the spare DI tank is installed in the third position.

This backwards rotation of DI tanks assures that all of the ion exchange capacity of the DI tank is fully utilized.The DI tank positioning can be accomplished in a matter of minutes, utilizing the tank's built-in quick-disconnect fittings. The end-user can easily do this without assistance or tools. Since all of the system hardware is purchased, there are no monthly rental charges.

More Information

All AQUA SOLUTIONS' Type II Systems produce purified water that exceeds ASTM, CAP and CLSI specifications for Type II reagent grade water.

Features and Benefits

  • Made in the USA.
  • The systems includes three installed and one spare.
  • 18,000 Grains Ion Exchange Capacity.
  • Includes LCD readout conductivity monitor with adjustable setpoint and flashing red LED alarms.
  • GSA Contract# GS-07F-5799R
  • One (1) year warranty.

Pure Water Specifications

Resistivity >2-15 Megohm-cm @ 25°C
Conductivity >0.500 MicroSeimens/cm @ 25°C
Pure Water Grade Type II
Flow Rate 6-LPM

Feed Water

Feed Water Quality Tap Water or RO water
Water Connection User supplied 1/4" or 3/8" NPTF valve (3/8" Tube X 1/4" NPTM & 3/8" NPTM fittings included with system)
Inlet Connection 3/8" Tube fitting (20 ft.of 3/8" of tubing supplied with system)

Features and Benefits

Purification Kit N/A
Purification DI Modules The system includes three installed plus one spare
Country of Origin Made in the USA
Recirculation N/A
Purity Sensor The sensor displays a Green LED when water quality is >2-megohm-cm and a Red LED flashes when it's time to change DI Modules
Ion Exchange Capacity 18,000 Grains
Warranty 1 Year
Certification N/A
GSA This item is on our GSA Contract #GS-07F-5799R
Lower Operating Costs N/A
No monthly rental charges You purchase and own the system hardware at a reasonable cost.
No installation charges The system is so easy to install, you can do it yourself.
No service charges You can install the spare DI tank yourself, whenever you need it - even on weekends!
It puts you in control If the DI tank exhausts in the middle of an experiment, or during a weekend, you can install the spare tank.
Competitively priced See for yourself - compare the total cost of our Type II/III DI systems with the competition.

*No Monthly Charges.

Optional Upgrades

2700N Remote Dispenser kit - non-recirculating type - with 0.1 micron final filter capsule
2700N-NFC Remote Dispenser kit - non-recirculating type - no final filter capsule
2700R N/A
2701-DISP DI Spray gun 1/4" NPTF inlet and spray pattern outlet 1-GPM
2701-DISP-6 DI Spray gun 3/8" NPTF inlet and spray pattern outlet 1-GPM
2618DI N/A
2635DI 7" x 37", 6000 Grain, 1/2 ft³ Type 2 DI module for expansion or replacement
CH1004-PF 10" Pre-filter assembly with 5-Micron sediment filter
DC2002 1 inch 0.1-Micron (absolute) Final Filter Capsule
DC2004 2 inch 0.1-Micron (absolute) Final Filter Capsule
DC2022 High flow 0.22-Micron (absolute) Filter Capsule
UV2006S UV Sterilizer - Prevents the growth of microorganisms within the system.
UF2000 Ultrafilter - Removes Pyrogen, Endotoxin, RNase, & DNase
ROT-200TU-130 N/A
ROT-200TU-042 N/A
ROT-200 N/A

System Specifications

DI Modules Includes two installed plus one spare 2635DI Type II Purifification Modules - 7" x 37", 6000 Grain, 1/2 ft³
Cabinet dimension N/A
Mounting N/A
Operating weight N/A
Input Power Requires two 110V outlet within 5 ft. of the purity sensor.
System power source N/A
Minimum Inlet Pressure 25 PSI (1.7 bar)
Maximum Inlet Pressure 100 PSI (6.6 bar)
Total Shipping Weight 144 lbs (65 kg)
DI Module Dimensions Diameter 7" (178mm) Height 37" (940mm)


2613DIR N/A
2618DIR N/A
2635DIR Type 2 Resin Refill for 26358DI Module (Exchange)
CC1050 10" 1-Micron Activated Carbon Prefilter
CN1050MP 10" 5-Micron Sediment Pre-Filter - For use with optional CH1004-PF
2212H01 N/A
2613H40 N/A
2613H40-H N/A