Electronics Symmetric PES Capsules0 pages
EPS Capsule Filters
Symmetric Polyethersulfone (PES) Membrane
Applications
UP DI Water
Photo Processing Chemicals
Acids & Bases
Solvents
Etch Baths
Plating Solutions
EPS Capsules are hydrophilic and manufactured with the highest
quality symmetric polyethersulfone (PES) membrane. PES
membrane exhibits excellent flow rates with precise retention
ratings. EPS capsules are used for critical applications in
contamination control.
Excellent flow rates with precise retention ratings
Final filtration of UPDI Water, acids, bases, resists, solvents
V
ery low extractables and rinses to high purity very
quickly
Capsule Length
Media
PES Membrane
Polyethersulfone has high flow rates and very low extractables
and rinses to high purity very quickly. It is particularly suited
for the filtration of water and aqueous solutions used in the
production of the latest low nanometer geometry products.
2”
5”
1.0 ft (930cm )
2
2
10”
3.0 ft (2788cm )
2
20”
7.0 ft (6503cm )
2
2
2
30”
14.0 ft (13006cm )
2
2
21.0 ft (19509cm2)
2
Flow Rate / Filtration Area
The following table represents typical water flow at a one psi (69 mbar) pressure differential across a single 2 inch capsule with 1.0 ft²
(930 cm²) of media with 1/2” FNPT ports. The test fluid is water at ambient temperature. Higher pressure drops are acceptable, but as
flows increase the pressure drop of the housing becomes more apparent..
0.03 μm
0.10 μm
0.22 μm
0.45 μm
GPM
0.21
0.36
0.64
1.0
LPM
0.79
1.36
2.42
3.79
Pore Size
* For approximate flow rates for 5” through 30” capsules, refer to the appropriate cartridge data sheet
Construction Materials
Maximum Operating Parameters
Housing
Polypropylene
Liquid Operational Pressure
80 psi (5.5 bar) at 20 °C (68 °F)
Filtration Media
Symmetric Polyethersulfone (PES)
Membrane
Gases Operational Pressure
60 psi (4.1 bar) at 20 °C (68 °F)
Operating Temperature
Media Support
Polypropylene
43 °C (110 °F) at 30 psi
(2.1 bar) in water
End Caps
Polypropylene
Forward Differential Pressure 50 psid (3.4 bard) at 20 °C (68 °F)
Center Core
Polypropylene
Reverse Differential Pressure
40 psid (2.7 bard) at 20 °C (68 °F)
Outer Support Cage
Polypropylene
35 psid (2.4 bard)
Sealing Method
Thermal Bonding
Recommended Changeout
Pressure
Electronics Grade
EPS Capsule Filters - Filtration Area
EPS capsule filters are used for final filtration of ultrapure DI
water, low to moderate temperature final filtration of acids and
bases, solvents, alcohols, copper plating solutions, photo resists
and other liquids. Electronics grade PS capsules are most often
applied for final filtration in tools at the point of dispensing.