Electronics PTFE Membrane Cartridge Filters0 pages
ETM Cartridge Filters
PTFE Membrane
Applications
Compressed Air
Pressurized Gases
Solvents
Tank Ventilation
Chemicals
Dimensions
Length
5 to 40 in. (12.7 to 101.6 cm) nominal
Outside Diameter
2.75 in. (7.0 cm) nominal
Filtration Area
7.0 ft2 (0.65 m2) per 10 in. length
Integrity Test Specifications
60/40 IPA/Water-wetted membrane
0.05 μm
ETM Filter Cartridges are designed to meet the special
needs of the electronics and high-purity chemical industries.
Polytetrafluoroethylene (PTFE) membrane is resistant to virtually
all chemicals. Because of the hydrophobic nature of PTFE, it can
also be used to filter process gases. Pre-wetted ETM filters are
available for liquids with surface tension too high to wet out PTFE
membrane. This membrane will also handle elevated process
temperatures in compatible fluids. To minimize extractables, each
cartridge module is pulse power flushed until the rinse effluent
reaches 18+ Megohm-cm and less than 3 ppb TOC. Each cartridge
module is also individually tested for integrity.
Construction Materials
Filtration Media
PTFE Membrane
Media Support
Polypropylene
End Caps
Polypropylene
Center Core
Polypropylene
Outer Support Cage
Polypropylene
Sealing Method
Thermal Bonding
O-rings
Buna, Viton® (or FKM), EP, Silicone,
FEP Encapsulated Silicone, FEP
Encapsulated Viton (or FKM)
Bubble Point
43 psig (3.0 barg)
0.10 μm
22 psig (1.52 barg)
0.22 μm
15 psig (1.0 barg)
0.45 μm
9 psig (621 mbarg)
1.0 μm
6 psig (414 mbarg)
Maximum Operating Parameters
Differential Pressure
50 psid (3.4 bard) at 20 °C (68 °F)
•t Forward
•t Reverse
40 psid (2.7 bard) at 20 °C (68 °F)
Operating Temperature
82 °C (180 °F) at 10 psid (0.69 bard)
Recommended
Changeout Pressure
35 psid (2.4 bard)
Sanitization/Sterilization
Autoclave
121 °C (250 °F), 30 min, multiple cycles
In-line Steam
135 °C (275 °F), 30 min, multiple cycles
For all elevated temperature procedures above, a stainless steel
support ring is required.
Chemical Sanitization
Performed using industry standard concentrations of hydrogen
peroxide, paracetic acid, sodium hypochlorite, and other
selected chemicals.
Total Performance
Critical Process Filtration, Inc. is a vertically integrated manufacturer
of filtration products to industries in which filtration is considered
a critical part of the manufacturing process. We supply a complete
line of products and services to help you cost effectively satisfy all
your filtration requirements from a single source.
Electronics Grade
Pore Size (liquid)
"