PTM Cartridge Filters PTFE Membrane
PTM Membrane Filter Cartridges are sterilizing gradefilters manufactured with inherently hydrophobicpolytetrafluoroethylene (PTFE) membrane. These cartridgesare designed for use in the filtration of aggressive solvents andas compressed gas and vent filters. Each cartridge module isindividually tested using the water intrusion method before it isreleased from manufacture. The cartridge surface area, filter coredesign, pleat configuration, and pleat packing density have beenoptimized to provide increased cartridge life and lower filtrationoperating costs. Rugged construction ensures repeatablesteaming and testing.
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
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 Polytetrafluoroethylene (PTFE)
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
