EPS Polyethersulfone PES Cartridge Filters
EPS Filter Cartridges with symmetric polyethersulfone (PES) membrane are power flushed, low particle, low extractable filter cartridges that are resistant to most acids and bases and capable of handling strong sanitization agents. High flow rates make PES membrane filters a good choice for central DI systems. This membrane will also handle filtration of compatible chemicals and solventsat elevated temperatures. To remove manufacturing debris and 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.
Maximum Operating Parameters
Differential Pressure
• Forward (in water) 50 psid (3.4 bard) 20 °C (68 °F)
• Reverse 40 psid (2.7 bard) at 20 °C (68 °F)
Operating Temperature 82 °C (180 °F) at 10 psid(0.69 bard) in water
Recommended Changeout Pressure 35 psid (2.4 bard)
Sanitization/Sterilization
Filtered Hot Water 90 °C (194 °F), 30 minutes, multiple cycles, max 3 psid forward flow
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.
Construction Materials
Filtration Media Symmetric Polyethersulfone (PES) 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)
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
