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Fact Sheet

Duratherm* EXL Series

Industrial High Temperature Elements

Description and Use

The Duratherm* EXL Series includes RO and NF

membrane elements. These Series is specifically

designed to maximize the benefits of hot water san-

itization for industries relying on chemical-free sani-

tization for product quality and/or industry

compliance standards.

The separation system sanitization protocol is per-

formed via periodic exposure to temperature as

high as 90°C (194°F) at minimum feed pressure to

kill microorganisms by denaturation and coagula-

tion of the proteins chains.

The Duratherm EXL elements are also suitable for

separation systems at temperature up to 70°C

(158°F).

All element constructions include polysulfone ATD &

central tube and a patented Durasan* cage outer

wrap.

Features and benefits

• Prevent bio-fouling development

• No disposal costs

• 100% wet testing Quality Assurance

• Durable construction

• Sanitization on the permeate side

Markets

• Food / Beverage

• BioPharm

• Electronics

•

Chemical

Table 1: Element Specification

Membrane Thin-film membrane (TFM*)

Model

Maximum

crossflow gpm

/hr)

Recommend-

ed crossflow

Salt rejection

Duratherm EXL RO2540HR 8 (1.8) Figure 2

Duratherm EXL RO8040HR 100 (22.7) Figure 7 Figure 2

Duratherm EXL NF2540HR 8 (1.8) Figure 3, 4 & 5

Duratherm EXL NF4040HR 40 (9.1) Figure 6 Figure 3, 4 & 5

Duratherm EXL NF4040 40 (9.1) Figure 6 Figure 3,4 & 5

Duratherm EXL NF8040HR 100 (22.7) Figure 7 Figure 3, 4 & 5

Duratherm EXL NF8040 100 (22.7) Figure 7 Figure 3, 4 & 5

Duratherm EXL UF2 8040 NA NA 2,500 MWCO

Model

Spacer mil

(mm)

Active area

)

Part

number

Duratherm EXL RO2540HR 50 (1.27) 19 (4.3) 1228306

Duratherm EXL RO8040HR 50 (1.27) 282 (26.2) 1228840

Duratherm EXL NF2540HR 50 (1.27) 19 (4.3) 1206922

Duratherm EXL NF4040HR 50 (1.27) 67 (6.2) 1206950

Duratherm EXL NF4040 50 (1.27) 67 (6.2) 1207032

Duratherm EXL NF8040HR 50 (1.27) 282 (26.42) 1206982

Duratherm EXL NF8040 50 (1.27) 282 (26.2) 1207045

Duratherm EXL UF2 8040 50 (1.27) 295 (27.4) 3002290

Table 2: Maximum Pressure Drops

Range

0°C-50°C

psig (kPa)

51°C-70°C

psig (kPa)

Over an element 15 (103) 7 (48)

Per housing 60 (414) 30 (207)

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AM-FSpwDurathermExcel_EN.doc Jan-14

Summary of content (4 pages)

PAGE 1
Fact Sheet Duratherm* EXL Series Industrial High Temperature Elements Description and Use The Duratherm* EXL Series includes RO and NF membrane elements. These Series is specifically designed to maximize the benefits of hot water sanitization for industries relying on chemical-free sanitization for product quality and/or industry compliance standards.
PAGE 2
Hot Water Sanitization Recommendations Figure 1A: Element Dimensions Diagram – Female For optimal performance, Duratherm EXL elements should always be cleaned using approved CIP procedures and flushed with fouling free water before the sanitization process. Feed pressure during sanitization should not exceed 40psi (275kPa) and the crossflow should not incur a pressure drop greater than 2psi (14kPa) per element.
PAGE 3
Figure 2: Typical NaCl Rejection dependence on Temperature of Duratherm EXL RO Element Figure 5: Typical Disaccharide Rejection dependence on Temperature of Duratherm EXL NF Elements Figure 3: Typical NaCl Rejection dependence on Temperature of Duratherm EXL NF Element Figure 6: Pressure Drop for 4in Element Figure 4: Typical MgSO4 Rejection dependence on Temperature of Duratherm EXL NF Elements Figure 7: Pressure Drop for 8in Element Fact Sheet Page 3
PAGE 4
Figure 8: Net Driving Pressure for Duratherm EXL RO Element Figure 9: Net Driving Pressure for Duratherm EXL NF Element Figure 10 Page 4 Fact Sheet