GE P&W Spiral Wound Membranes - Duratherm EXL Series User Manual
Duratherm* exl series, Industrial high temperature elements, Description and use
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
(m
3
/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
ft
2
(m
2
)
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