FENIGAL-FG Water Technologies
Tel: +86-15052233707 [email protected] Industrial Water Systems · Membranes · EDI · Desalination
FENIGAL-FG Water Technologies Wuxi Fenigal · Industrial Water Division
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Current focus SPECIALS Product System DuPont UF EDI Stacks High-Pressure Pumps SWRO BWRO

Product System

Professional Product Detail

EDI stack MK-7

MK-7 is designed to• Provide ultrapure water for industrial applications including power and general industry. • Produce mixed bed quality water on a continuous basis. • Require no caustic or acid for regeneration of ion exchange resin within the stack. • Be leak free, guaranteed. • Elimi

Category: Product System
EDI stack MK-7

MK-7 is designed to

 • Provide ultrapure water for industrial applications including power and general industry.

• Produce mixed bed quality water on a continuous basis.

• Require no caustic or acid for regeneration of ion exchange resin within the stack.

• Be leak free, guaranteed.

• Eliminate brine injection and concentrate recirculation, simplifying system design.

 

description and use

MK-7 are high flow electrodeionization (EDI) stacks which use electrical current to deionize and polish reverse osmosis (RO) permeate water. MK-7 product water is at an ultrapure level required in today’s most demanding applications.

 

typical applications

• Power Generation (NOx, Boiler Feed)

• General Industry

 

quality assurance

• CE, RoSH & CSA marked

• Manufactured in an ISO 9001 and ISO 14001 facility

Stack Specifications

Flow

4.2 - 7.8 m3 /hr

8 - 34 gpm

Maxmium flow

7.8 m3 /hr

34 gpm

Nominal flow

6.0 m3 /hr

26 gpm

Shipping weight

137 kg

300 lb

Dimensions

(width x length x height)

31cm x 61cm x66cm

12’’ x 24” x 26”


Typical Performance

Product Quality

Resistivity

> 16 MOhm-cm

Sodium

< 3 ppb

Silica (SiO2) Removal

Up to 99% / < 5 ppb

Boron Removal

> 95%

Operation Parameters

Recovery

Up to 97%

Concentrate Flow (vs. Product Flow)

Countercurrent, hardness ≥0.10 ppm as CaCO3 Cocurrent, hardness

Voltage

0 - 400 VDC

Amperage

0 - 5.2 ADC

Inlet Pressure Cocurrent

3.1 - 6.9 bar

45 - 100 psi

Inlet Pressure Countercurr

4.1 - 6.9 bar

60 - 100 psi

Pressure Drop

.0 - 3.8 bar

15 - 55 psi

Maximum Feed Water Specifications

Feed Water - Total Exchangeable Anions (TEA as CaCO3)

< 25 mg/l

< 25 ppm

Feed Water – Conductivity, NaHCO3 equivalent

< 43 μS/cm

< 43 μS/cm

Temperature

5 - 40˚C

41 - 104˚F

Total Hardness (as CaCO3)

< 1.0 mg/l

< 1.0 ppm

Silica (SiO2)

< 1.0 mg/l

< 1.0 ppm

Total Organic Carbon (TOC as C)

< 0.5 mg/l

< 0.5 ppm

Total Chlorine

< 0.05 mg/l

< 0.05 ppm

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