GE P&W Pleated Filters User Manual

Fact Sheet

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©2010, General Electric Company. All rights reserved.

FSfilMemtrexHFE-T_EN.doc Feb-10

Core and cage

Polyester

Support layer

Halar (ECTFE)

Membrane

ePTFE

End caps

Polyester

Memtrex* HFE-T

Pleated Filters with PTFE Membrane

Features and Benefits

Memtrex* HFE-T features a ePTFE membrane
edge-laminated on Halar (ECTFE) (Halar is a
trademark of Ausimont.), with polyester plastic
parts. Halar is an industrial-grade fluoropolymer
with excellent solvent resistance. MHFE-T benefits
of the edge lamination technology assuring a low­er pressure drop and increasing flow rate. MHFE-T
filters can withstand very harsh process condi­tions due to its construction using these highly
resistant materials. Providing broad chemical
compatibility, you can count on our filters to pro­duce consistent, uniform process streams in your
most demanding filtration applications. MHFE de­liver high flow rates and high purity results with
absolute rated efficiencies (99.9% filtration effi­ciency at rated pore size based on ASTM F795 and
F661 test methods) and retention characteristics
that outperform other filters.

The MHFE-T filter is just one example of our strong
commitment to fluid treatment. Our complete
portfolio includes filters for every stage of pro­cessing, and we offer custom solutions for your
unique applications. GE Water & Process Technol­ogies is your complete source for filters, crossflow
membranes, housings, and other filtration equip­ment.

Figure 1 : Memtrex HFE-T filter

General Properties

Memtrex HFE-T filters are available the following
absolute pore size micron ratings: 0.05, 0.1, 0.2,

0.45 and 1 µm. Tables 1, 2, 3 and 4 show further
details on materials of construction, dimensions,
operational limits and flow performance in water.

Typical Applications

MHFE-T filters offer outstanding performance in
very harsh chemical environments. These filters
are manufactured and packaged in a cleanroom
environment for assured cleanliness. Typical ap­plications include:

 Chemicals
 Microelectronics
 Pharmaceuticals

Table 1: Materials of Construction

Table 2: Dimensions

Filter model

Nominal O.D.

Nominal I.D.

MHFE85-T
MHFE91-T
MHFE92-T
MHFE94-T
MHFE01-T

2.75” (70mm)

2.75” (70mm)

2.75” (70mm)

2.75” (70mm)

2.75” (70mm)

1.25” (31mm)

1.25” (31mm)

1.25” (31mm)

1.25” (31mm)

1.25” (31mm)

Maximum forward differential pressure

Maximum reverse differential pressure

Maximum operating temperature

60 psi (4.14 bar)
at 70°F (21.1°C)

30 psi (2.07 bar)
at 70°F (21.1°C)

205ºF (96.1ºC)
at 25 psid (1.7 bar)

Type

Absolute Micron

Rating

Nominal cartridge

Length

End #1 Adapter

End #2 Adapter

Elastomer material

Product Grade

MHFE-T

85 = 0.05 µm
91 = 0.1 µm
92 = 0.2 µm
94 = 0.45 µm

1 = 10 in (25 cm)
2 = 20 in (51 cm)
3 = 30 in (76 cm)
4 = 40 in (102 cm)

A = Open End
Gasket
E = 222 O-Ring
F = 226 O-Ring

A = Open End
Gasket
E = Closed End Cap
H = Fin Adapter

T = Teflon² Encap­sulated Viton²

E = Electronic grade
rinse

Pre Wet = Rinsed
and packed wet

Table 3: Operational Limits

Table 4: Flow Performance in CleanWater

1

Data based on 10” length filter

Integrity Testing

 0.05 μm  5 cc / min at 40 psig (2.76 bar)
 0.1 μm  5 cc / min at 40 psig (2.76 bar)
 0.2 μm  5 cc / min at 30 psig (2.07 bar)
 0.45 μm  5 cc / min at 20 psig (1.38 bar)
 1 μm  5 cc / min at 15 psig (1.38 bar)

Additional Information

 Memtrex HFE-T filters may be sanitized with

compatible chemical agents. The filters must
not be autoclaved or steam sterilized.

 GE certifies that the material contained in its

Memtrex HFE-T pleated filters meet U.S. FDA

1

requirements for food contact under the ap­plicable regulations in 21 CFR. For further in­formation, contact GE technical services.
Memtrex HFE-T filters meet the test criteria for
USP class VI-121°C Plastics.

 Aqueous extracts from Memtrex HFE-T filters

contain less that 0.25 EU/ml. The filters typical­ly exhibit low levels of non-volatile residues.

 GE filter cartridges are designed and manu-

factured for resistance to a wide range of
chemical solutions. Conditions will vary with
each application and users should carefully
verify chemical compatibility. Please contact
your GE distributor for more information.

Table 5 provides additional ordering information. Table 5: Ordering Information

²Teflon and Viton are a registered trademark of DuPont.

Page 2 Fact Sheet