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EW Series
Microfiltration – Pretreatment for RO/NF
The E-Series family of polysulfone microfiltration
membrane elements is characterized by a 0.04µm
pore size.
The EW family of elements should be selected when
pretreatment is in need to keep a reverse osmosis
or a nanofiltration system running. EW will remove
suspended solids and other known foulants.
The EW family of elements should be selected for
process stream clarification including suspended
solids removal.
Figure 1: Element Dimensions Diagram – Male
(for 2540 and 4040TM/FM)
Table 2: Dimensions and Weight
Dimensions, inches (cm)
Model1
A
C3
Weight
lbs (kg)
EW2540F
40.0
(101.6)
0.75
(1.90) OD
2.4
(6.1)
4
(1.8)
EW4025T
25.0
(63.5)
0.625
(1.59)
3.9
(9.9)
5
(2.3)
EW4040C4
40.0
(101.6)
0.75
(1.90) OD
3.9
(9.9)
8
(3.5)
EW4040FM/TM
40.0
(101.6)
0.75
(1.90) OD
3.9
(9.9)
8
(3.5)
EW8040
40.0
(101.6)
1.125
(2.86)
7.9
(20.1)
32
(14.5)
Table 1: Element Specification
Membrane
E-Series, Polysulfone
Active area
ft2 (m2)
Outer wrap
Part
number
EW2540F-50P
50 (1.3)
19 (1.7)
Fiberglass
EW2540F-30D
30 (0.8)
27 (2.5)
Fiberglass
EW4025T
60 (5.6)
Tape
1207063
EW4040C1024
91 (8.4)
Cage
1207066
EW4040FM
85 (7.9)
Fiberglass
3050064
Model
EW4040TM
85 (7.9)
Tape
3051011
EW8040C1133
255 (23.7)
Cage
1207075
EW8040F
370 (34.4)
Fiberglass
1207077
Boxed
B2
1 These
elements are bagged dry before shipping.
diameter unless specified OD (outside diameter).
3 The element diameter (dimension C) is designed for optimum performance in GE
pressure vessels. Other pressure vessel dimension and tolerance may result in
excessive bypass and loss of capacity.
4This element is provided with loose ATDs. The length without ATD is 38.75”. Each
ATD is ¼” thick and the interconnector provides an inter-element spacing of ¾”.
2 Internal
Table 3: Operating and CIP parameters
Figure 1: Element Dimensions Diagram – Female
Typical Operating Pressure
30 - 150psi (207 – 1,034kPa)
Typical Operating Flux
10-30GFD (15-50LMH)
Maximum Operating Pressure
200psi (1,379kPa)
Maximum Temperature
Continuous operation: 122°F (50°C)
Clean-In-Place (CIP): 122°F (50°C)
pH Range
Continuous operation: 2-10.0,
Clean-In-Place (CIP): 1.0-11.5
Maximum Pressure Drop
Over an element: 15psi (103kPa)
Per housing: 60psi (414kPa)
Chlorine Tolerance
5,000+ ppm-days