ETM Cartridge Filters PTFE Membrane
ETM Filter Cartridges are designed to meet the specialneeds of the electronics and high-purity chemical industries.Polytetrafluoroethylene (PTFE) membrane is resistant to virtuallyall chemicals. Because of the hydrophobic nature of PTFE, it canalso be used to filter process gases. Pre-wetted ETM filters areavailable for liquids with surface tension too high to wet out PTFEmembrane. This membrane will also handle elevated processtemperatures in compatible fluids. To minimize extractables, eachcartridge module is pulse power flushed until the rinse effluentreaches 18+ Megohm-cm and less than 3 ppb TOC. Each cartridgemodule is also individually tested for integrity.
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
Maximum Operating Parameters
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 Polypropylene 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)
