Electronics PTFE Membrane Capsules0 pages
ETM Capsule Filters
PTFE Membrane
Applications
Solvent Filtration
Compressed Air Filtration
Non-Aqueous Solutions
Tank Vents
Process Gas
ETM capsules are made with highly hydrophobic PTFE
membrane. These capsules are designed for use in the filtration
of non-aqueous liquids and aggressive solvents. ETM filters are
also used as compressed gas filters and vent filters. Each capsule
module is individually integrity tested before it is released from
manufacture.
The capsule media surface area, filter core design, pleat
configuration and pleat packing density are optimized to
increase life and lower filtration operating costs.
Optimized for maximum filter life
D
esigned for filtration of air and process gases
ETM capsule filters are most often used as final filters for gases
and non-aqueous liquids at the point-of-use, such as at tools.
They are also ideal for vent filtration to prevent contaminants
from reaching solutions in tanks.
V
ent filtration for the protection of tank contents
ETM Capsule Filters - Filtration Area
Capsule Length
Media
2”
PTFE Membrane
5”
1.0 ft (930cm )
2
10”
3.0 ft (2788cm )
2
2
2
20”
7.5 ft (6967cm )
2
2
30”
15.0 ft (13934cm )
2
2
22.5 ft (20901cm2)
2
Flow Rate / Filtration Area
The following table represents typical air and water 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
0.05 μm
0.10 μm
0.22 μm
0.45 μm
1.0 μm
SCFM
3.0
3.7
5.6
9
11
Construction Materials
μm
Rating
0.05 μm
0.10 μm
0.22 μm
0.45 μm
1.0 μm
GPM
0.15
0.25
0.40
0.76
1.2
LPM
0.57
0.95
1.51
2.87
4.54
Maximum Operating Parameters
Housing
Polypropylene
Liquid Operational Pressure
80 psi (5.5 bar) at 20 °C (68 °F)
Filtration Media
PTFE 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
Outer Support Cage
Polypropylene
Sealing Method
Thermal Bonding
Forward Differential Pressure 50 psid (3.4 bard) at 20 °C (68 °F)
Reverse Differential Pressure
40 psid (2.7 bard) at 20 °C (68 °F)
Recommended Changeout
Pressure
35 psid (2.4 bard)
Electronics Grade
F
inal filtration of solvents, alcohols and other
non-aqueous liquids