Series of EDI²

The Series of EDI² by membraPure GmbH consists of advanced electrodeionization (EDI) systems designed to produce Type II laboratory-grade water continuously without the need for chemical regeneration. These systems are engineered to purify water after reverse osmosis and are ideally suited for laboratories, clinical diagnostics, and light industrial applications where high-throughput, reagent-free deionized water is essential. The EDI² systems are the ideal bridge between RO-pretreated feedwater and ultrapure systems such as Astacus², ensuring low conductivity and reduced TOC in a compact, maintenance-friendly setup.

Technical Specifications of Series of EDI²

Pure Water Quality

• < 0.2 µS/cm; Type II

Resistivity

• > 5 MegaOhm/cm

Total Organic Carbon (TOC)

• < 20 ppb

Productivity Rate

• 10 L/h to 40 L/h

Bacteria

• < 10 cfu/mL

Dimensions

• 504 mm x 340 mm x 535 mm

Weight

• >40 kg

Power

• 110 V – 230 V

Feed Water Requirements 

Type of Feed Water

• potable water / tap water

Feed Water Conductivity

• < 1400 µS/cm

Inlet Pressure

• < 5 bar

Free Chlorine

• < 0.02 mg/L

Silt Density Index (SDI)

• < 3

pH

• 3 to 9

Temperature

• 5 to 25 °C

Iron | Manganese

• < 0.01 mg/L / < 0.01 mg/L

Sulfate

• < 2 mg/mL