GE P&W Spiral Wound Membranes - Duratherm STD Series - Manual

Fact Sheet
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FS1271EN.doc Jul-13
Duratherm* STD Series
High Temperature Pure Water Elements
Description and Use
The Duratherm* STD Series is specifically designed
to maximize the benefits of continuous high tem-
perature operation as well as hot water sanitiza-
tion for industries willing to maximize energy
recovery and use hot purified water.
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 STD are suitable for separation
systems purifying water at temperature up to
70°C (158°F) in low crossflow environment and no
suspended solids.
This Series includes a variety of size 8” and 4” di-
ameters. All element constructions include
Durasan* Cage outer wrap, Polysulfone ATD and
central tube.
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 A-Series, Thin-film membrane (TFM*), PES
Model
Maximum
crossflow
gpm (m 3 /h)
Average
permeate flow
gpd (m 3 /day)
Average
NaCl Rejection
Duratherm STD RO4040 1,2 20 (4.5) 2,300 (8.7) 99.5%
Duratherm STD RO8040 1,2 65 (14.8) 9,900 (37.5) 99.5%
Duratherm STD UF8040HR 65 (14.8) - 5,000Da
1 Testing conditions: 2,000ppm NaCl solution at 225psig (1,550kPa) operating
pressure, (25°C) 77°F, pH7.5 and 15% recovery before any hot water sanitiza-
tion.
2 Average salt rejection after 24 hours operation. Individual flow rate may vary
+25%/-15%. Final permeate flow rate is subject to variations in the heat treat-
ments. In most cases, the permeate flow rate after heat treatments will stabi-
lize at 30-50 percent below the nominal flowrate before heat treatment. For a
conservative design, consider a permeate flow reduction of 50%.
Model
Active area
ft 2 (m 2 )
Outer wrap Part
number
Duratherm STD RO4040 90 (8.4) Cage 1228197
Duratherm STD RO8040 355 (33.0) Cage 1228225
Duratherm STD UF8040HR 360 (33.4) Cage 1207315
Figure 1: Element Dimensions Diagram (Female)