Electronics Polypro Membrane Capsules0 pages
EPM Capsule Filters
Polypropylene Membrane
Applications
Etchants
Tank Vents
Acids & Bases
Process Gases
Solvent Filtration
Compressed Air Filtration
Non-aqueous Solutions
Electronics grade EPM capsules are made of materials specifically
chosen for their compatibility with chemicals and solvents. They
have minimal extractables when exposed to those chemicals
and solvents. Each capsule module is flushed until the rinse
effluent reaches 18+ Megohm-cm and less than 3 ppb TOC. Each
cartridge module is also individually tested to ensure integrity.
Optimized for maximum filter life
Designed for sterilizing filtration of air and process gases
F
inal filtration of solvents, alcohols and other nonaqueous liquids
The capsule media surface area, filter core design, pleat
configuration and pleat packing density are all optimized to
provide increased life.
Capsule Length
Media
2”
Polypropylene
Membrane
5”
10”
20”
30”
1.0 ft2 (930cm2)
3.0 ft2 (2788cm2)
7.0 ft2 (6503cm2)
14.0 ft2 (13006cm2)
21.0 ft2 (19509cm2)
Flow Rate / Filtration Area
The following table represents typical water and air flow at a one psi (69 mbar) pressure differential across a single 2 inch capsule with
1.0 ft ² (930 cm²) of media with 1/2” FNPT ports. The liquid test fluid is water at ambient temperature. The gas test fluid is compressed
air at ambient temperature. Higher pressure drops are acceptable, but as flows increase the pressure drop of the housing becomes
more apparent.
Air/Gas Flow Rates
Liquid Flow Rates
μm Rating
0.10 μm
0.22 μm
SCFM
3.1
4.6
μm Rating
0.10 μm
0.22 μm
GPM
0.11
0.39
LPM
0.42
1.48
* For approximate flow rates for 5” through 30” capsules, refer to the appropriate cartridge data sheet
Construction Materials
Maximum Operating Parameters
Polypropylene
Liquid Operational Pressure
80 psi (5.5 bar) at 20 °C (68 °F)
Filtration Media
Polypropylene Membrane
Gases Operational Pressure
60 psi (4.1 bar) at 20 °C (68 °F)
Media Support
Polypropylene
Operating Temperature
End Caps
Polypropylene
43 °C (110 °F) at 30 psi
(2.1 bar) in water
Center Core
Polypropylene
Forward Differential Pressure
50 psid (3.4 bard) at 20 °C (68 °F)
Outer Support Cage
Polypropylene
Reverse Differential Pressure
40 psid (2.7 bard) at 20 °C (68 °F)
Sealing Method
Thermal Bonding
Recommended Changeout
Pressure
35 psid (2.4 bard)
Housing
Electronics Grade
EPM Capsule Filters - Filtration Area
EPM capsules are used when high filter efficiency is critical to
optimum process yield. Made with hydrophobic polypropylene
membrane, the filters are designed for use with non-aqueous
liquids, and process gases.